direct numerical simulation

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direct numerical simulation [də¦rekt nü¦mer·ə·kəl ‚sim·yə′lā·shən]

(fluid mechanics)

Simulation of fluid flow that is carried out through numerical integration of the Navier-Stokes equation in a two-stage process: a temporal approximation involving the splitting of the equation into linear and nonlinear parts and the approximation of time derivatives with finite differences, and a spatial approximation involving the replacement of spatial derivatives with finite difference, finite element, spectral, or hybrid numerical approximations. Abbreviated DNS.

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No references found			Areas of interest include measurements of the structure of turbulent flames, direct numerical simulation of free shear flows, and use of topological methods for interpretation of complex three-dimensional vector fields. Astronautics and Aeronautical Engineering by Impel Overseas / Reference and Education community In the past decades, algebraic models, one- and two-equation models, non-linear eddy viscosity models, algebraic stress models, Reynolds stress transport models, detached eddy simulations, LESs, and direct numerical simulations have been proposed to model the random nature. Performance analysis and optimized design of backward-curved airfoil ... by Huang, Chen-Kang; Hsieh, Mu-En / HVAC & R Research Direct Numerical Simulation FDS has also the option to use a Direct Numerical Simulation (DNS) if the numerical grid is fine enough. Impact of various parameters on the CFD predictions of atrium smoke ... by Hadjisophocleous, George; Ko, Yoon J. / ASHRAE Transactions			direct heating direct hierarchy control direct hot-water system direct immunofluorescence Direct Injection direct input/output direct instruction direct interelectrode capacitance direct inward dialing direct keying device direct labor direct labor standard direct leveling direct lighting direct luminaire direct mapped cache direct material direct media access direct memory access Direct Method direct motion Direct Motion of Planets direct nailing Direct Nuclear Reaction direct numerical control direct numerical simulation direct organization direct outward dialing direct overwrite direct personnel expense direct pickup direct piezoelectricity direct plate exposure direct point repeater direct pointing direct positive direct printing direct process direct product direct proof direct proportion direct quenching direct read after write direct reading direct realization direct recording Direct Reduction of Iron Ore direct reflection direct repeat direct resistance-coupled amplifier direct return system			Direct Mode Gateway Direct Mode Operation Direct Mode Repeater Direct Model Manipulation Direct Model Reference Adaptive Control Direct Modulation Direct Modulation Amplitude and Phase Direct motion Direct Motion of Planets Direct Moulded Sole Direct Myocardial Revascularization direct nailing Direct Nanoparticle Deposition Direct Network Access Direct Network Access, Inc. Direct Network Cabling Direct neural interface Direct Noise Amplification Direct nomination Direct Normal Irradiance Direct Normal Irradiation direct nuclear division direct nuclear reaction Direct Numerical Control Direct Numerical Control direct numerical simulation Direct Numerical Simulation of Transition Direct Numerical Simulation, Large Eddy Simulation direct nursing care functions direct object direct object Direct Object Pronoun direct objects Direct Obligation Authority Direct Observation Clinical Encounter Examination Direct Observation of Primary Care Direct Observation of Procedural Skills Direct Observation of the Nu Tau Direct Observation Unit Direct Off-Line Programming Direct Offshore Foreign Insurer Direct On Line Direct on Sampling Filter in Solution direct one’s attention direct one’s thoughts to Direct Online Library Information Direct Online Reservation System Direct Oocyte Sperm Transfer Direct Operating Cost Direct Operating Expense Direct Operating Profit

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