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Measure of a device's efficiency at allowing fluid flow
The flow coefficient of a device is a relative measure of its efficiency at allowing fluid flow. It describes the relationship between the pressure drop
Flow_coefficient
Device for measuring or restricting fluid flow
plate, the flow rate can be obtained from Bernoulli's equation using coefficients established from extensive research. In general, the mass flow rate q m
Orifice_plate
Dimensionless parameter to quantify fluid resistance
other flow regimes; in particular, at very low Reynolds number, it is more natural to write the drag force as being proportional to a drag coefficient multiplied
Drag_coefficient
Quantity relating heat flux and temperature difference
methods for calculating the heat transfer coefficient in different heat transfer modes, different fluids, flow regimes, and under different thermohydraulic
Heat_transfer_coefficient
the same exit pressures. Mathematically the discharge coefficient may be related to the mass flow rate of a fluid through a straight tube of constant cross-sectional
Discharge_coefficient
have to know about the loading, pressure and flow coefficient which are as follow- Loading coefficient {\displaystyle ~} Ψ ′ = g h u 2 {\displaystyle
Compressor_characteristic
Equation in fluid dynamics
Darcy–Weisbach friction factor, friction factor, resistance coefficient, or flow coefficient. The Darcy-Weisbach equation, combined with the Moody chart
Darcy–Weisbach_equation
specific speed Nss and its flow coefficient Φ (analogous to, but not the same as, the discharge coefficient in pipe flow). ω s s = ω ⋅ Q ( g ⋅ N P S
Inducer_(pump_component)
Sub-class of turbomachinery
efficiencies and loss coefficients, which are also dimensionless. In general applications, the flow coefficient and head coefficient are considered of primary
Centrifugal_compressor
Device for testing internal aerodynamics of engine parts
standardization, port flow coefficients are not "true" flow coefficients, which would be based on the actual minimum area in the flow path. Which method
Air_flow_bench
Machine for continuous flow gas compression
loading coefficient ( ψ {\displaystyle \psi \,} ) as a function of flow coefficient ( ϕ {\displaystyle \phi \,} ) Stage pressure ratio against flow rate
Axial_compressor
Dimensionless number describing relative pressures in a fluid flow field
the pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field. The pressure coefficient is used in aerodynamics
Pressure_coefficient
Estimate of velocity in open channel flows
introduced in 1768 while the Gauckler–Manning coefficient was first developed in 1865, well before the classical pipe flow resistance experiments in the 1920–1930s
Manning_formula
Dimensionless quantity relating lift to fluid density and velocity over an area
function of the angle of the body to the flow, its Reynolds number and its Mach number. The section lift coefficient cl refers to the dynamic lift characteristics
Lift_coefficient
Hydraulic structure for measuring fluid flow
free-flow discharge can be summarized in this equation: Q = C H n {\displaystyle Q=CH^{n}} Where: Q is flowing rate C is the free-flow coefficient for
Parshall_flume
Artificial river barrier
summarised as Q = CLHn where Q is the volumetric flow rate of fluid (the discharge), C is the flow coefficient for the structure (on average a figure of 3
Weir
Nondimensional heat transfer coefficient
nondimensionalization of the convective heat transfer coefficient. Like the heat transfer coefficient, the Nusselt number may be defined locally, at a single
Nusselt_number
Difference in pressure between two points of a fluid
provided with an associated flow coefficient, commonly known as Cv or Kv. The flow coefficient relates pressure drop, flow rate, and specific gravity for
Pressure_drop
Pulmonary function test
parameter is the coefficient of retraction (CR) which is Pmax/TLC . Mean transit time (MTT) Mean transit time is the area under the flow-volume curve divided
Spirometry
Retarding force on a body moving in a fluid
with its plane normal to the flow direction, the drag coefficient is constant for Re > 3,500. The further the drag coefficient Cd is, in general, a function
Drag_(physics)
Ratio of useful heating or cooling provided to work required
The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of the useful heating or
Coefficient_of_performance
Change in nuclear fission rate caused by voids in a reactor
In nuclear engineering, the void coefficient (more properly called void coefficient of reactivity) is a number that can be used to estimate how much the
Void_coefficient
Measure of inequality of a statistical distribution
In economics, the Gini coefficient (/ˈdʒiːni/ JEE-nee), also known as the Gini index or Gini ratio, is a measure of statistical dispersion intended to
Gini_coefficient
Measure of voltage induced by change of temperature
The Seebeck coefficient (also known as thermopower, thermoelectric power, and thermoelectric sensitivity) of a material is a measure of the magnitude
Seebeck_coefficient
Tendency of matter to change volume in response to a change in temperature
strain) divided by the change in temperature is called the material's coefficient of linear thermal expansion. For small temperature changes, this is nearly
Thermal_expansion
Direct conversion of temperature differences to electric voltage and vice versa
{\displaystyle {\mathcal {K}}} is the Thomson coefficient. The Thomson effect is a manifestation of the direction of flow of electrical carriers with respect to
Thermoelectric_effect
Streamlined body for generating lift
moves in response to changes in angle of attack and lift coefficient. In two-dimensional flow around a uniform wing of infinite span, the slope of the
Airfoil
Type of turbine
which the flow of the working fluid is radial to the shaft. The difference between axial and radial turbines consists in the way the fluid flows through
Radial_turbine
Characteristic of rocket engine nozzles
overall efficiency of a rocket engine design. The thrust coefficient characterizes the supersonic flow in the expansion section downstream of the nozzle throat
Thrust_coefficient
Aspects of fluid mechanics involving fluid flow
fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids – liquids and gases. It has several subdisciplines, including aerodynamics
Fluid_dynamics
Engine fuel system device
amounting to no more than a few percent. The flow coefficient of a perfect entry would be 1.0 while the coefficient for a sharp edged entry would be 0.6 and
Velocity_stack
Force resisting sliding motion
pavement has a high coefficient of friction. Coefficients of friction range from near zero to greater than one. The coefficient of friction between two
Friction
Fluid dynamics calculation
uniform normal depth of flow is the slope of the channel bottom [unitless; length/length]; C {\displaystyle C} is Chézy's coefficient [length1/2/time]. Values
Chézy_formula
Internal combustion engine component
resistance to flow. If the holes are regularly placed, then the relationship between the position of the valve and the flow coefficient (Cv) (the flow rate per
Choke_valve
Class of flumes
as Q = C H a n {\displaystyle Q=CH_{a}^{n}} Where Q is flow rate C is the free-flow coefficient for the flume Ha is the head at the primary point of measurement
Palmer-Bowlus_Flume
Ratio of inertial to viscous forces acting on a liquid
predict fluid flow patterns in different situations by measuring the ratio between inertial and viscous forces. At low Reynolds numbers, flows tend to be
Reynolds_number
Equation for the force of drag
cylinders and plates held transverse to the flow direction, this equation is applicable with the drag coefficient as a constant value when the Reynolds number
Drag_equation
same values. Head coefficient Efficiency Power coefficient Where, N {\displaystyle N} is speed of rotation. Q {\displaystyle Q} is flow rate. D {\displaystyle
Variable geometry turbomachine
Variable_geometry_turbomachine
Physical measure of overcoming air resistance
equals the m⁄A term in the Ballistic Coefficient formula. Note that "angled cube", in this case, means the flow is perpendicular to an edge, not a corner
Ballistic_coefficient
Angle between the chord of a wing and the undisturbed airflow
maximum lift coefficient. As the angle of attack increases further, the upper surface flow becomes more fully separated and the lift coefficient reduces further
Angle_of_attack
Topics referred to by the same term
League cricket franchise Cv, the flow coefficient, used to determine the pressure-drop across an element in fluid flow applications cv, the specific heat
CV
Motion characterized by chaotic changes in pressure and flow velocity
a flow is called "diffusivity". Turbulent diffusion is usually described by a turbulent diffusion coefficient. This turbulent diffusion coefficient is
Turbulence
Phenomenon of non-ideal fluids changing temperature
McBain, S.E.; Saville, G. (1995). "A flow calorimeter for the measurement of the isothermal Joule–Thomson coefficient of gases at elevated temperatures and
Joule–Thomson_effect
Compressible flow velocity limiting effect
Choked flow is a compressible flow effect. The parameter that becomes "choked" or "limited" is the fluid velocity. Choked flow is a fluid dynamic condition
Choked_flow
Physical law relating heat loss to temperature difference
transfer coefficients for typical configurations and fluids. For laminar flows, the heat transfer coefficient is usually smaller than in turbulent flows because
Newton's_law_of_cooling
the sail stalls and promotes flow separation. Each type of sail, acting as an airfoil, has characteristic coefficients of lift (CL ) and lift-induced
Forces_on_sails
Thermodynamic property
transfer coefficient) * (area of the body) * (variation of the temperature) / (length of the material) The formula for the rate of heat flow is: Q Δ t
Rate_of_heat_flow
Statistical measure of association for two binary variables
In statistics, the phi coefficient, also known as the mean square contingency coefficient or Yule coefficient of correlation and commonly denoted by φ
Phi_coefficient
Machine for exchanging energy with a fluid
They allow a comparison of flow machines with different dimensions and boundary conditions. Pressure range ψ Flow coefficient φ (including delivery or volume
Turbomachinery
Mathematical description of fluid movements
Permeability: Generalization of the Reflection Coefficient Method of Describing Volume and Solute Flows". Biophysical Journal. 12 (4): 414–419. Bibcode:1972BpJ
Starling_equation
Method of calculating heat transfer in flow systems
exchanger. For a given heat exchanger with constant area and heat transfer coefficient, the larger the LMTD, the more heat is transferred. The use of the LMTD
Logarithmic mean temperature difference
Logarithmic_mean_temperature_difference
Aerodynamic power limitation for wind turbines
kinetic energy in wind. The factor 16/27 (0.593) is known as Betz's coefficient or the Betz limit. Practical utility-scale wind turbines achieve at peak
Betz's_law
Type of resistor whose resistance varies with temperature
Negative-temperature-coefficient (NTC) thermistors have less resistance at higher temperatures, while positive-temperature-coefficient (PTC) thermistors
Thermistor
Type of fluid
same along any direction), the viscosity tensor reduces to two real coefficients, describing the fluid's resistance to continuous shear deformation and
Newtonian_fluid
Equation on water flow in pipes
gauge pressure) L = length of pipe in feet Q = flow, gpm (gallons per minute) C = pipe roughness coefficient d = inside pipe diameter, in (inches) Note:
Hazen–Williams_equation
Computational problem in graph theory
maximum flow problems involve finding a feasible flow through a flow network that obtains the maximum possible flow rate. The maximum flow problem can
Maximum_flow_problem
Type of fluid
passing through the origin, the constant of proportionality being the coefficient of viscosity. In a non-Newtonian fluid, the relation between the shear
Non-Newtonian_fluid
like the Gini coefficient and specific income ratios. Income from black market economic activity is not included. The Gini coefficient is a number between
List of countries by income inequality
List_of_countries_by_income_inequality
River in Turkey
sources, it does not dry completely in summer. Its length is 60 km. The flow coefficient is 0.141. In the permeable terrain with Tuff, the majority of precipitation
Melendiz_River
Type of aerodynamic or hydrodynamic drag
drag coefficient of low-Reynolds-number turbulent boundary layers. Compared to laminar flows, the skin friction coefficient of turbulent flows lowers
Skin_friction_drag
In fluid dynamics, aerodynamic potential flow codes or panel codes are used to determine the fluid velocity, and subsequently the pressure distribution
Aerodynamic potential-flow code
Aerodynamic_potential-flow_code
Graph where most nodes are reachable in a small number of steps
A small-world network is a graph characterized by a high clustering coefficient and low distances. In an example of a social network, high clustering
Small-world_network
Rate constant in engineering
In engineering, the mass transfer coefficient is a diffusion rate constant that relates the mass transfer rate, mass transfer area, and concentration
Mass_transfer_coefficient
Technique for the generative modeling of a continuous probability distribution
variables) samples from N ( 0 , I ) {\displaystyle {\mathcal {N}}(0,I)} . The coefficients 1 − β t {\displaystyle {\sqrt {1-\beta _{t}}}} and β t {\displaystyle
Diffusion_model
Used to assess the predictive power of hydrological models
bias and variance terms. Coefficient of determination Kling–Gupta efficiency Nash, J. E.; Sutcliffe, J. V. (1970). "River flow forecasting through conceptual
Nash–Sutcliffe model efficiency coefficient
Nash–Sutcliffe_model_efficiency_coefficient
Fluid dynamics study of flow distribution in parallel channels
; Gao, Z.L.; Gan, G.H.; Wu, D.D. (2001). "Analytical solution of flow coefficients for a uniformly distributed porous channel". Chemical Engineering
Flow distribution in manifolds
Flow_distribution_in_manifolds
Study of hydraulic flow in thermal fluids
difference between the wall and bulk flow can be obtained from the heat transfer coefficient. The heat transfer coefficient depends on several factors: mode
Thermal_hydraulics
Narrowest point in a fluid stream
though they are still not highly sought after.[citation needed] The coefficient of contraction is defined as the ratio between the area of the jet at
Vena_contracta
Pump driven by a gas turbine
selecting desired inducer performance parameters (flow coefficient, hub-tip ratio, suction margin, flow margin) and then finding shaft speed from this as
Turbopump
free-flow coefficient K is the free-flow length coefficient for the flume H is the head at the primary point of measurement n is the free-flow exponent
Cutthroat_flume
Popular modification of standard Parshall flume
as Q = C H a n {\displaystyle Q=CH_{a}^{n}} Where Q is flow rate C is the free-flow coefficient for the flume Ha is the head at the primary point of measurement
Montana_flume
Relationships between equipment performance and power
pump discharge and head coefficient dimensionless numbers. For a given pump, one can compute the discharge and head coefficients as follows: C d = Q n D
Affinity_laws
Wing shape
design lift coefficient of 0.4 and maintains laminar flow for lift coefficients between 0 and 0.8. Further advancement in maximizing laminar flow achieved
NACA_airfoil
Resistance of a fluid to shear deformation
applies to general flows, it is easy to visualize and define in a simple shearing flow, such as a planar Couette flow. In the Couette flow, a fluid is trapped
Viscosity
Lab technique in biology and chemistry
Flow cytometry (FC) is a technique used to detect and measure the physical and chemical characteristics of a population of cells or particles. In this
Flow_cytometry
Air conditioning system that allows for individual control of spaces
Variable refrigerant flow (VRF), is an HVAC technology invented by Daikin Industries, Ltd. in 1982. Daikin Industries, Ltd. named this "VRV" and holds
Variable_refrigerant_flow
Equations for calculations of the Darcy friction factor
in pipe flow as well as open-channel flow. The Darcy friction factor is also known as the Darcy–Weisbach friction factor, resistance coefficient or simply
Darcy friction factor formulae
Darcy_friction_factor_formulae
Analysis and solving of problems that involve fluid flows
solve problems that involve flows. Computers are used to perform the calculations required to simulate the free-stream flow of the fluid, and the interaction
Computational_fluid_dynamics
Statistical measure
mean square deviation (NRMSD), coefficient of variation (CV), and percent RMS are used to quantify the uniformity of flow behavior such as velocity profile
Root_mean_square_deviation
Material property relevant for characterizing fluid flow
{\displaystyle \mu } is the shear viscosity coefficient and ζ {\displaystyle \zeta } is the volume viscosity coefficient. The parameters μ {\displaystyle \mu
Volume_viscosity
Mathematical concept applicable to physics
the particles. In turbulent flows, the transport by eddy motion can be expressed as a grossly increased diffusion coefficient. In quantum mechanics, particles
Flux
Heat transfer due to the movement of fluid
and flow situations. Conjugate convective heat transfer Convection Forced convection Natural convection Mixed convection Heat transfer coefficient Heat
Convection_(heat_transfer)
Mass of a substance which passes per unit of time
In physics and engineering, mass flow rate is the rate at which mass of a fluid passes through a surface over time. Its unit is kilogram per second (kg/s)
Mass_flow_rate
Airfoil designed primarily to delay the onset of wave drag in the transonic speed range
is generated, which increases the pressure coefficient to the critical value Cp-crit, where the local flow velocity will be Mach 1. The position of this
Supercritical_airfoil
Lift coefficient (CL or CZ) (aerodynamics) (dimensionless) - Relates the lift generated by an airfoil with the dynamic pressure of the fluid flow around
Physical_coefficient
Transfer of genetic variation from one population to another
water or wind. When gene flow is impeded, there can be an increase in inbreeding, measured by the inbreeding coefficient (F) within a population. For
Gene_flow
Mathematical coefficient used in mass transfer calculations
out-flow concentrations (post-mass transfer) of the mass donating and receiving stream are equal to one another. Systems with sieving coefficient that
Sieving_coefficient
Ball used in the sport of golf
dimples, maximum launch speed from test apparatus (generally defining the coefficient of restitution) and maximum total distance when launched from the test
Golf_ball
Equation for force on an object in sea waves
the inertia and drag coefficients can be tuned to give the correct extreme values of the force. Third, when extended to orbital flow which is a case of
Morison_equation
Where a fluid's velocity is zero
the pressure coefficient C p {\displaystyle C_{p}} at stagnation points is +1. On a streamlined body fully immersed in a potential flow, there are two
Stagnation_point
Equations of motion for viscous fluids
in incompressible flows it can depend on density and on pressure. Any equation that makes explicit one of these transport coefficient in the conservative
Navier–Stokes_equations
Tensor used in continuum mechanics
gradual shearing, and a rotational viscosity coefficient which results from a coupling between the fluid flow and the rotation of the individual particles
Viscous_stress_tensor
Phenomenon in fluid dynamics
crisis (also known as the Eiffel paradox) is a phenomenon in which drag coefficient drops off suddenly as Reynolds number increases. This has been well studied
Drag_crisis
Technique for managing measurement of fluid flows
determined the Coefficient of Discharge by completing numerous calibration tests where the indicated mass flow was compared to the actual mass flow to determine
Flow_conditioning
Graph used in fluid dynamics
show that fluid flow in rough pipes could be described by four dimensionless quantities: Reynolds number, pressure loss coefficient, diameter ratio of
Moody_chart
Reactor simulation model
ν is the stoichiometric coefficient, dimensionless r is the volumetric source/sink term (the reaction rate), mol/m3s. The flow linear velocity, u (m/s)
Plug_flow_reactor_model
Study of heat conduction between solid bodies
or liquid bodies in thermal contact. The thermal contact conductance coefficient, h c {\displaystyle h_{c}} , is a property indicating the thermal conductivity
Thermal_contact_conductance
Mathematical descriptions of molecular diffusion
the amount of substance that will flow through a unit area during a unit time interval, D is the diffusion coefficient or diffusivity. Its dimension is
Fick's_laws_of_diffusion
River is 640 km2, the average rate or modulus of 5.4 m3 ⋅ / s and the flow coefficient of 20.5%. Gonomy, Nyankona. "Problematique de la gestion de l'eau en
Grande_Rivière_du_Nord
Type of Soviet nuclear power reactor
removal. RBMK-1500 has increased coolant flow of the core. Because of the RBMK's positive void coefficient, the reduced cooling water volume causes a
RBMK
FLOW COEFFICIENT
FLOW COEFFICIENT
Girl/Female
Tamil
Shrawani | à®·à¯à®°à®¾à®µà®£à¯€Â
Aspirant, Flow
Shrawani | à®·à¯à®°à®¾à®µà®£à¯€Â
Boy/Male
Gujarati, Hindu, Indian
Flow
Surname or Lastname
English
English : see Flow.
Surname or Lastname
English
English : from Middle English blowe, blaa, bloo ‘pale’, hence a nickname for someone with an exceptionally pale complexion.Americanized spelling of French Bleau.
Surname or Lastname
English
English : variant of Clough.English : metonymic occupational name for a nailer, from Old French clou ‘nail’. Compare Clower.Possibly an Americanized spelling of German Klau, a habitational name for someone from Klau near Aachen or Clauen in Lower Saxony, or Glau, a nickname for an astute person, from Old High German, Low German glou, glau ‘circumspect’.
Girl/Female
Indian, Telugu
Flow
Boy/Male
British, English
Laurel
Female
English
English variant spelling of French Fleur, or perhaps just a short form of Latin Flora, both FLOR means "flower."
Girl/Female
Australian, British, Christian, English, German, Latin
Goddess; Peaceful Soul; Form of Florence; Blooming; Flower; Arrow
Surname or Lastname
English and Scottish
English and Scottish : topographic name for someone who lived near a tumulus, mound or hill, Middle English lowe, from Old English hlÄw (see Law 2).Scottish and English : nickname for a short man, from Middle English lah, lowe (Old Norse lágr; the word was adopted first into the northern dialects of Middle English, where Scandinavian influence was strong, and then spread south, with regular alteration of the vowel quality).English and Scottish (of Norman origin) : nickname for a violent or dangerous person, from Anglo-Norman French lou, leu ‘wolf’ (Latin lupus). Wolves were relatively common in Britain at the time when most surnames were formed, as there still existed large tracts of uncleared forest.Scottish : from a pet form of Lawrence. Compare Lowry 1.Americanized spelling of Jewish Lowe.
Girl/Female
Latin Spanish
Flower.
Girl/Female
American, German, Latin
Flowering; Flourishing; Flower; Blossom
Girl/Female
Native American American Latin
Arrow.
Girl/Female
Arabic, Gujarati, Indian, Muslim, Telugu
River; Flow
Girl/Female
Hindu
Aspirant, Flow
Boy/Male
Tamil
Music flow
Boy/Male
Indian, Sanskrit, Tamil, Telugu
Flow
Boy/Male
Hindu
Music flow
Surname or Lastname
English
English : unexplained; possibly a variant of Flew, a metonymic occupational name for a fisherman, from Middle English flue, denoting a kind of fishing net.
Girl/Female
Latin American
The mythological Roman goddess of flowers. Diminutive of Florence: From 'florentius' or...
FLOW COEFFICIENT
FLOW COEFFICIENT
Girl/Female
Indian
Pretty
Boy/Male
Indian, Sanskrit
Covering the Earth
Male
Hindi/Indian
(अननà¥â€à¤¤) Hindi myth name ANANTA means "infinite; without end." This is the name of another incarnation of Vishnu.
Female
Egyptian
, the younger daughter of the king of Bakhtan.
Male
Scandinavian
Scandinavian form of Old Norse Hróaldr, ROALD means "famous ruler."
Boy/Male
Arabic, Muslim
Present; Witness
Boy/Male
French American
Famous warrior, from the Old German 'Chlodovech'. Eighteen kings of France have borne this name,...
Boy/Male
Gujarati, Hindu, Indian
Lord Krishna
Girl/Female
Hindu, Indian, Sanskrit
Encouragement; Faith
Girl/Female
Assamese, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit
Bridge; Sacred Symbol
FLOW COEFFICIENT
FLOW COEFFICIENT
FLOW COEFFICIENT
FLOW COEFFICIENT
FLOW COEFFICIENT
n.
A stream of water or other fluid; a current; as, a flow of water; a flow of blood.
n.
A continuous movement of something abundant; as, a flow of words.
v. i.
To have or be in abundance; to abound; to full, so as to run or flow over; to be copious.
v. i.
To rise, as the tide; -- opposed to ebb; as, the tide flows twice in twenty-four hours.
v. t.
To form by inflation; to swell by injecting air; as, to blow bubbles; to blow glass.
v. i.
To proceed; to issue forth; as, wealth flows from industry and economy.
v. t.
To put out of breath; to cause to blow from fatigue; as, to blow a horse.
v. t.
To render slow; to slacken the speed of; to retard; to delay; as, to slow a steamer.
n. pl.
See Flo.
pl.
of Flo
n.
A low, flat mass of floating ice.
superl.
Not ready; not prompt or quick; dilatory; sluggish; as, slow of speech, and slow of tongue.
n.
The tidal setting in of the water from the ocean to the shore. See Ebb and flow, under Ebb.
n.
A defect; a fault; as, a flaw in reputation; a flaw in a will, in a deed, or in a statute.
superl.
Not loud; as, a low voice; a low sound.
superl.
Moderate; not intense; not inflammatory; as, low heat; a low temperature; a low fever.
v. i.
To move with a continual change of place among the particles or parts, as a fluid; to change place or circulate, as a liquid; as, rivers flow from springs and lakes; tears flow from the eyes.
n.
A low-lying piece of watery land; -- called also flow moss and flow bog.
n.
A side or incidental blow; an accidental blow.
v. t.
To clear of contents by forcing air through; as, to blow an egg; to blow one's nose.