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Simulation in computational fluid dynamics
A direct numerical simulation (DNS) is a simulation in computational fluid dynamics (CFD) in which the Navier–Stokes equations are numerically solved without
Direct_numerical_simulation
Mathematical model for turbulence
can be achieved with direct numerical simulation (DNS), but DNS is computationally expensive, and its cost prohibits simulation of practical engineering
Large_eddy_simulation
Analysis and solving of problems that involve fluid flows
field across the RANS and the LES regions of the solutions. Direct numerical simulation (DNS) resolves the entire range of turbulent length scales. This
Computational_fluid_dynamics
inhomogeneous flow field. Such numerical methods can be far field integration methods (e.g. FW-H) as well as direct numerical methods optimized for the solutions
Computational_aeroacoustics
dissipative particle dynamics, smoothed particle hydrodynamics, direct numerical simulation, turbulence modeling, aerodynamic potential-flow code, thermal
List of computational fluid dynamics software
List_of_computational_fluid_dynamics_software
Weather prediction using mathematical models of the atmosphere and oceans
attempted in the 1920s, it was not until the advent of computer simulation in the 1950s that numerical weather predictions produced realistic results. A number
Numerical_weather_prediction
Process of mathematical modelling, performed on a computer
weather forecasting Numerical modeling (geology) forecasting of risk simulation of electrical circuits Power system simulation simulation of other computers
Computer_simulation
Topics referred to by the same term
aromatic compound Dinalbuphine sebacate, an analgesic Direct numerical simulation, a simulation method in computational fluid dynamics Dragon NaturallySpeaking
DNS_(disambiguation)
Motion characterized by chaotic changes in pressure and flow velocity
February 2015). "Numerical investigation of the possibility of macroscopic turbulence in porous media: a direct numerical simulation study". Journal of
Turbulence
Imitation of the operation of a real-world process or system over time
driving simulator. Continuous simulation is a simulation based on continuous-time rather than discrete-time steps, using numerical integration of differential
Simulation
Mathematical method in fluid dynamics
denoted as ⟨ u ⟩ {\displaystyle \langle \mathbf {u} \rangle } . Direct numerical simulation, or resolution of the Navier–Stokes equations (nearly) completely
Reynolds_decomposition
Model representing the dynamics of a long-chained polymer
used polymer model that can be used in a turbulence simulation since direct numerical simulation of turbulence is already extremely expensive. Due to
FENE_model
Aspect ratio effects in turbulent duct flows studied through direct numerical simulation Journal of Turbulence 15 (10), 677-706 (Cited 115 times, according
Ricardo_Vinuesa
Probabilistic problem-solving algorithm
experiments or Monte Carlo simulations, are a broad class of computational algorithms based on repeated random sampling for obtaining numerical results. The underlying
Monte_Carlo_method
Equation describing the flow of a fluid through a porous medium
February 2015). "Numerical investigation of the possibility of macroscopic turbulence in porous media: a direct numerical simulation study". Journal of
Darcy's_law
Monte Carlo method
Direct simulation Monte Carlo (DSMC) method uses probabilistic Monte Carlo simulation to solve the Boltzmann equation for finite Knudsen number fluid
Direct_simulation_Monte_Carlo
incompressible Navier-Stokes equations for performing large-scale direct numerical simulation (DNS) in complex geometries. It also supports the linearised
Nektar++
South Korean aerospace engineer
science. Kim has been a pioneer in developing direct numerical simulation (DNS) and large eddy simulation (LES) as a reliable and respected tool for studying
John_Kim_(professor)
perform numerical computations. It comes with its own programming language, in which numerical algorithms can be implemented. MCSim a simulation and numerical
List of numerical-analysis software
List_of_numerical-analysis_software
Ratio of a fluid's kinematic viscosity to mass diffusivity
homogeneous turbulence and passive scalar transport. Linear theory and direct numerical simulation". J. Fluid Mech. 542: 305–342. Bibcode:2005JFM...542..305B. doi:10
Schmidt_number
Computer control of machine tools
Computer numerical control (CNC) or CNC machining is the automated control of machine tools by a computer. It is an evolution of numerical control (NC)
Computer_numerical_control
Type of heat transfer within fluids
Administration in the United States Department of Commerce. "DIRECT NUMERICAL SIMULATION OF BENARD-MARANGONI CONVECTION". www.edata-center.com. Archived
Rayleigh–Bénard_convection
Equations of motion for viscous fluids
computational time becomes significantly infeasible for calculation or direct numerical simulation. Attempts to solve turbulent flow using a laminar solver typically
Navier–Stokes_equations
Turbulence that concerns the regimes of magnetofluid flow at high Reynolds number
above are tested using the high resolution direct numerical simulation (DNS). Number of recent simulations report the spectral indices to be closer to
Magnetohydrodynamic turbulence
Magnetohydrodynamic_turbulence
Simulation of a dynamical system of particles
dark matter. Direct N-body simulations are used to study the dynamical evolution of star clusters. The 'particles' treated by the simulation may or may
N-body_simulation
Chemical reaction between a fuel and oxygen
which makes the whole dynamical system stiff. As a result, the direct numerical simulation of turbulent reactive flows with heavy fuels soon becomes intractable
Combustion
Mathematical model of turbulence
models, while being computationally cheaper than Direct Numerical Simulations (DNS) and Large Eddy Simulations. Eddy-viscosity based models like the k − ϵ
Reynolds stress equation model
Reynolds_stress_equation_model
Aspects of fluid mechanics involving fluid flow
described well through the use of the Navier–Stokes equations. Direct numerical simulation (DNS), based on the Navier–Stokes equations, makes it possible
Fluid_dynamics
Multi-scale chaotic motions
visualization experiments are still necessary to direct, develop, and validate the numerical simulations now dominant in the field. A turbulent flow is
Coherent_turbulent_structure
a feature which has been observed both experimentally and in Direct Numerical Simulation (DNS). He also independently called it turbophoresis. Dasgupta
Turbophoresis
Underwater current of sediment-laden water moving downslope
concentration and accurate deposit heights are a few to mention. Both Direct numerical simulation (DNS) and Turbulence modeling are used to model these currents
Turbidity_current
Mechanical engineer and academic
gas kinetic scheme, as direct numerical simulation tools for complex turbulent and multiphase flows. He also devised numerical methods for studying complex
Lian-Ping_Wang
Variations in rotation rates
magnitude smaller than the depth of the convective envelope. A direct numerical simulation of solar convection would have to resolve this entire range of
Differential_rotation
Signal analysis tool
river discharge,; Lagrangian single particle statistics from direct numerical simulation,; Tan et al., [2014], vorticity field of two dimensional turbulence
Hilbert–Huang_transform
Computer simulation with random inputs
A stochastic simulation is a simulation of a system that has variables that can change stochastically (randomly) with individual probabilities. Realizations
Stochastic_simulation
Mean kinetic energy per unit mass of eddies in turbulent flow
numerically simulate turbulence without discretizing the flow-field as far as the Kolmogorov microscales, which is called direct numerical simulation
Turbulence_kinetic_energy
kinds of structured data sets. It is mainly used in the field of direct numerical simulations. The complete package consists of libraries intended for usage
EAS3
Intermittency Transport Laminar Fluctuation Energy Method Direct numerical simulation Large Eddy Simulation Gamma-Re Transition Model D.Di Pasquale, A.Roma, S
Transition_modeling
mechanics. Methods to address turbulence include direct numerical simulation and large eddy simulation. Beginning in the 1950s, advances in semiconductor
History_of_fluid_mechanics
Property of complex fluids
energy cost. Drag reducing agent FENE model Non-Newtonian fluid Direct numerical simulation Graebel, William (2001). Engineering Fluid Mechanics. New York;
Toms_effect
Hong Kong-American engineer and academic
Lagrangian Statistics in Stationary Isotropic Turbulence Using Direct Numerical Simulations" in 1989. Yeung joined the faculty of the Georgia Institute of
Pui-Kuen_Yeung
Methods for numerical approximations
using computer simulations of car crashes. Such simulations essentially consist of solving partial differential equations numerically. In the financial
Numerical_analysis
this is because most flows of practical interest are turbulent. Direct numerical simulations (DNS) for single-phase flow, let alone two-phase flow, are computationally
Particle-laden_flow
Nonlinear form of the Schrödinger equation
obtains the solutions with n solitons. This can be achieved via direct numerical simulation using, for example, the split-step method. This method has been
Nonlinear Schrödinger equation
Nonlinear_Schrödinger_equation
Vuduc, Richard; Zorin, Denis; Biros, George (2010). "Petascale Direct Numerical Simulation of Blood Flow on 200K Cores and Heterogeneous Architectures"
Richard_Vuduc
Computer simulations to discover and understand chemical properties
complex systems analytically; MD simulation circumvents this problem by using numerical methods. However, long MD simulations are mathematically ill-conditioned
Molecular_dynamics
Greek-British applied scientist, engineer and university professor
turbulence: in the Large Eddy Simulation frame, mainly implicit Large Eddy Simulation, and Direct Numerical Simulation. High-speed flows: featuring shock
Dimitris_Drikakis
observational work has been complemented by a type of scientific computer simulation called the Mars general circulation model. Several different iterations
Climate_of_Mars
American geoscientist
pore scale flow on average geochemical reaction rates using direct numerical simulation". Water Resources Research. 48 (3) 2011WR011404. Bibcode:2012WRR
Carl_Steefel
French scientist
Lesieur's work focused on turbulence modeling and simulation. He performed direct numerical simulations of large scales. His work has been applied to industrial
Marcel_Lesieur
Cornell University professor of mechanical engineering
turbulent flows, and to extraction of Lagrangian statistics from direct numerical simulations. He is the recipient of 2008 Ya. B. Zeldovich Gold Medal from
Stephen_B._Pope
Open-source software package for numerical processes
Retrieved 10 August 2019. "OpenFOAM: User Guide: Case structure". OpenFOAM Foundation website DLR: Future Aircraft Engineering – The Numerical Simulation
OpenFOAM
Specialist field of computer science
study includes: Algorithms (numerical and non-numerical): mathematical models, computational models, and computer simulations developed to solve sciences
Computational_science
Indian scientist (1933–2020)
2020. Basu, A. J.; Sinha, U. N.; Narasimha, R. (1 June 1992). "Direct Numerical Simulation of Turbulence on the Flosolver MK3 Parallel Computer". nal-ir
Roddam_Narasimha
American engineer
faculty in September 1986. Moin pioneered the use of direct numerical simulation and large eddy simulation techniques for the study of turbulence physics,
Parviz_Moin
Approximation algorithm for the n-body problem
notable for having order O(n log n) compared to a direct-sum algorithm which would be O(n2). The simulation volume is usually divided up into cubic cells
Barnes–Hut_simulation
Removes diesel particulate matter or soot from the exhaust gas of a diesel engine
from Ultra-High Resolution 3D X-Ray Imaging and Image-Based Direct Numerical Simulations". SAE International. 2017-01-0927 (2) 2017-01-0927: 608–618.
Diesel_particulate_filter
Dimensionless number in fluid dynamics
Tryggvason, Grétar; Scardovelli, Ruben; Zaleski, Stéphane (2011). Direct Numerical Simulations of Gas–Liquid Multiphase Flows. Cambridge, UK: Cambridge University
Eötvös_number
important in simulations of long-term wave phenomena or turbulence. These properties make compact schemes suitable for Direct Numerical Simulation (DNS) and
Compact_finite_difference
Subfield of astronomy
remnants including white dwarfs, neutron stars, and black holes. Direct numerical simulation – High-fidelity computational modeling of astrophysical fluids
Outline_of_astrophysics
American fluid dynamicist (born 1956)
Engineering. 346 (2019), 242–259. J. Lu and G. Tryggvason. “Direct numerical simulations of multifluid flows in a vertical channel undergoing topology
Gretar_Tryggvason
Simulation of wildfire behavior
Wildfire modeling is concerned with numerical simulation of wildfires to comprehend and predict fire behavior. Wildfire modeling aims to aid wildfire suppression
Wildfire_modeling
French researcher
he set up the first direct simulations of turbulent flames. These first academic simulations paved the way for numerical simulation tools for real combustion
Thierry_Poinsot
American mathematician (1943–2011)
pseudo-spectral methods, direct numerical simulations, renormalization group methods for turbulence, and very-large-eddy simulations. He was the founder of
Steven_Orszag
low-Mach to hypersonic aerodynamics, large eddy simulation and aero-acoustics, direct numerical simulation, multiphase flow, galactic relativistic flow etc
Advection upstream splitting method
Advection_upstream_splitting_method
Indian-born mechanical engineer
reacting flows. His research group was among the first to use Direct numerical simulation (DNS) to investigate MILD combustion (moderate or intense low-oxygen
Nedunchezhian_Swaminathan
Numerical method for solving physical or engineering problems
the rear of the car, thus reducing the cost of the simulation. Another example would be in numerical weather prediction, where it is more important to
Finite_element_method
Numerical analysis technique
the Chinese American applied mathematician Kane S. Yee, born 1934) is a numerical analysis technique used for modeling computational electrodynamics. Finite
Finite-difference time-domain method
Finite-difference_time-domain_method
French–American plasma physicist
turbulence in the presence of a magnetic field using models and direct numerical simulation. She then remained at the observatory upon graduation, eventually
Annick_Pouquet
Edition". edu.3ds.com. Retrieved 2022-08-25. "Student Products - Free Simulation Software". Ansys.com. Retrieved 2017-05-28. "Packages --QuickField FEA
List of finite element software packages
List_of_finite_element_software_packages
Extremely large or complex datasets
(JHTDB) contains over 350 terabytes of spatiotemporal fields from Direct Numerical simulations of various turbulent flows. Such data have been difficult to
Big_data
Distinguished surfaces of dynamic trajectories
Examples of attracting, repelling and shearing LCSs are in a direct numerical simulation of 2D turbulence are shown in Fig.2a. Classical invariant manifolds
Lagrangian_coherent_structure
Java based systems biology simulator library
SED-ML (Simulation Experiment Description Markup Language) formats. SBSCL offers a robust and extensible Java-based implementation of numerical solvers
SBSCL
pseudo-spectral methods, direct numerical simulations, renormalization group methods for turbulence, and very-large-eddy simulations. He was the founder of
List_of_Pi_Lambda_Phi_members
Gyrokinetic plasma turbulence simulation
electrons. GEM uses a novel electromagnetic algorithm allowing direct numerical simulation of the electromagnetic problem at high plasma pressures. GEM
Gyrokinetic_ElectroMagnetic
in Scientific Computing, ed. Bruaset et al., pp. 163–202, 1997. Numerical simulation of geodynamic processes with the Portable Extensible Toolkit for
Portable, Extensible Toolkit for Scientific Computation
Portable,_Extensible_Toolkit_for_Scientific_Computation
Filtering in the context of large eddy simulation (LES) is a mathematical operation intended to remove a range of small scales from the solution to the
Filter (large eddy simulation)
Filter_(large_eddy_simulation)
Software used in mathematical applications
software is software used to model, analyze or calculate numeric, symbolic or geometric data. Numerical analysis and symbolic computation had been in most important
Mathematical_software
Field of mathematics
Numerical linear algebra, sometimes called applied linear algebra, is the study of how matrix operations can be used to create computer algorithms which
Numerical_linear_algebra
Norwegian scientist
; Mortensen, M.; Reif, B. A. P.; Langtangen, H. P. (2011). "Direct Numerical Simulation of Transitional Flow in a Patient–Specific Intracranial Aneurysm"
Hans_Petter_Langtangen
Application of mechanics using computational methods
are studied in the field of numerical analysis. Computer programs are made to solve the discretized equations using direct methods (which are single step
Computational_mechanics
Type of simulation
Military simulations, also known informally as war games, are simulations in which theories of warfare can be tested and refined without the need for actual
Military_simulation
Class of turbulent flow
Suzuki, H.; Nagata, K.; Sakai, Y.; Hayase, T. (1 December 2010). "Direct numerical simulation of turbulent mixing in regular and fractal grid turbulence".
Multiscale_turbulence
Free/open-source coupling library for partitioned simulations
Universal Interface (MUI), OpenPALM (CWIPI), and MpCCI. Multiphysics simulation List of numerical analysis software Gatzhammer, Bernhard; Mehl, Miriam; Neckel
PreCICE_(software)
French-Chilean born American fluid dynamicist
has demonstrated how “big data” resulting from large world-class numerical simulations can be shared with many researchers who lack the massive supercomputing
Charles_Meneveau
Soliton-like phenomenon that occurs in granular and other dissipative media
particle physics and cosmology have been analyzed using both direct numerical simulations and semi-analytic methods, including quasibreather-based approaches
Oscillon
metaheuristics-based optimization plugin for simulation-based optimization in conjunction with discrete-event simulation software. PottersWheel – parameter estimation
List_of_optimization_software
Limit of sequence of smooth functions
Goz, M.F.; Bunner, B.; Sommerfeld, M.; Tryggvason, G. (2002). Direct numerical simulation of bubble swarms with a parallel front-tracking method. High
Laplacian_of_the_indicator
dynamics (CFD) Numerical methods in fluid mechanics Large eddy simulation Smoothed-particle hydrodynamics Aeroacoustic analogy — used in numerical aeroacoustics
List of numerical analysis topics
List_of_numerical_analysis_topics
Branch of physics
multitude of irregular geometries found in actual devices. Computational numerical techniques can overcome the inability to derive closed form solutions
Computational electromagnetics
Computational_electromagnetics
American mechanical engineer
irrotational motions of viscous and viscoelastic fluids, and direct numerical simulations of solid–liquid flows. He has been listed as an ISI Highly Cited
Daniel_D._Joseph
Combination of electronics and mechanics
Donald L. Margolis, Ronald C. Rosenberg, System Dynamics: Modeling and Simulation of Mechatronic Systems, 4th Edition, Wiley, 2006. ISBN 0-471-70965-4 Bestselling
Mechatronics
Computer-simulated universes
The Illustris project is an ongoing series of astrophysical simulations run by an international collaboration of scientists. The aim is to study the processes
Illustris_project
Physics problem related to laws of motion and gravity
Xiaoming Li applied a new strategy of numerical simulation for chaotic systems called the clean numerical simulation (CNS), with the use of a national supercomputer
Three-body_problem
American applied mathematician and mechanical engineer
finishing her education and is a pioneer of massively parallel direct numerical simulation of turbulent combustion with complex chemistry . She has led
Jacqueline_Chen
18-20, 2007, Salt Lake City. Kirkman, R., and Metzger, M., "Direct numerical simulation of sensitivity coefficients in low-Reynolds number turbulent
TreadPort_Active_Wind_Tunnel
Scientific activity that produces models
model, it needs to be implemented as a computer simulation. This requires more choices, such as numerical approximations or the use of heuristics. Despite
Scientific_modelling
years, several researchers worldwide contributed numerical methods and models for EMT-type simulations tools. The fundamental concept of companion circuit
EMTP
Collection of technologies and methods
Ergonomic simulation and assessment of production assembly tasks Resource planning Computer-aided manufacturing (CAM) Numerical control CNC Direct numerical control
Manufacturing process management
Manufacturing_process_management
Deterministic – Differential equation – Dimensionless number – Direct numerical simulation – Durability – Dynamical system – Dynamics – Dynamic response
Index of engineering science and mechanics articles
Index_of_engineering_science_and_mechanics_articles
DIRECT NUMERICAL-SIMULATION
DIRECT NUMERICAL-SIMULATION
Boy/Male
Indian, Punjabi, Sikh
Hearty Traditions
Girl/Female
Teutonic American German Latin
Directed.
Male
French
French form of Latin Benedictus, BÉNÉDICT means "blessed."Â
Girl/Female
Greek Latin
Killed for abusing children.
Boy/Male
English American German
Leader.
Male
Turkish
Turkish name DIRENÇ means "resistance."
Girl/Female
Tamil
Direct, Lead
Girl/Female
Indian, Sikh
Faithful
Boy/Male
Indian, Punjabi, Sikh
One who Sings Glory of God
Boy/Male
Hindu
Direct evidence
Girl/Female
Indian, Marathi
Do Not have Numerical Value for Comparison
Girl/Female
Hindu, Indian, Malayalam, Marathi, Telugu
Direct; Lead
Girl/Female
Latin
Goddesses who helped with childbirth.
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi
Crown
Boy/Male
American, Australian, British, Chinese, English, German
Ruler of the People; The People's Ruler
Girl/Female
Indian, Sikh
Lion
Boy/Male
Tamil
One who directs, Guide
Boy/Male
Dutch
Dutch forms of Theodoric.
Boy/Male
Tamil
Pratyaksh | பà¯à®°à®¤à¯à®¯à®•à¯à®·
Direct evidence
Pratyaksh | பà¯à®°à®¤à¯à®¯à®•à¯à®·
Boy/Male
German
People's Ruler
DIRECT NUMERICAL-SIMULATION
DIRECT NUMERICAL-SIMULATION
Girl/Female
French, German
Rising; Green
Girl/Female
Tamil
Shireesha | ஷீரிஷாÂ
Flower, Shining Sun
Female
Hindi/Indian
(पà¥à¤·à¥à¤ªà¤¾) Hindi name PUSHPA means "flower."
Male
Scandinavian
Scandinavian form of Greek Emmanouel, EMANUEL means "God is with us."
Boy/Male
Hindu, Indian, Punjabi, Sikh
Happy; Brave; Warrior of Peace
Girl/Female
Hindu, Indian
River Ganga
Boy/Male
Christian & English(British/American/Australian)
Wild or Crazy
Girl/Female
Assamese, Hindu, Indian, Tamil
Restless; Moon
Girl/Female
Tamil
Glorious, Virtuous
Boy/Male
Anglo, Australian, British, Celtic, English
Poet; Wise Warrior
DIRECT NUMERICAL-SIMULATION
DIRECT NUMERICAL-SIMULATION
DIRECT NUMERICAL-SIMULATION
DIRECT NUMERICAL-SIMULATION
DIRECT NUMERICAL-SIMULATION
n.
Belonging to number; denoting number; consisting in numbers; expressed by numbers, and not letters; as, numerical characters; a numerical equation; a numerical statement.
n.
Alt. of Numerical
a.
Not reaching the end aimed at by the most plain and direct method; as, an indirect proof, demonstration, etc.
adv.
In a direct manner; in a straight line or course.
n.
Expressing number; representing number; as, numeral letters or characters, as X or 10 for ten.
a.
Not direct; not straight or rectilinear; deviating from a direct line or course; circuitous; as, an indirect road.
a.
Resembling a worm; as, the lumbrical muscles of the hands of the hands and feet.
n.
One who directs; a director.
v. t.
To put a direction or address upon; to mark with the name and residence of the person to whom anything is sent; to superscribe; as, to direct a letter.
v. t.
To arrange in a direct or straight line, as against a mark, or towards a goal; to point; to aim; as, to direct an arrow or a piece of ordnance.
adv.
In a numerical manner; in numbers; with respect to number, or sameness in number; as, a thing is numerically the same, or numerically different.
a.
Indirect.
n.
A lumbrical muscle.
a.
Straight; not crooked, oblique, or circuitous; leading by the short or shortest way to a point or end; as, a direct line; direct means.
v. t.
To direct.
imp. & p. p.
of Direct
v. t.
To point out to with authority; to instruct as a superior; to order; as, he directed them to go.
v. t.
To point out or show to (any one), as the direct or right course or way; to guide, as by pointing out the way; as, he directed me to the left-hand road.
a.
In the line of descent; not collateral; as, a descendant in the direct line.
n.
The same in number; hence, identically the same; identical; as, the same numerical body.