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There are a total of 54 record(s) matching your query.
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Studying Turbulence Using Numerical Simulation Databases - X Proceedings of the 2004 Summer Program
Author(s): Moin, Parviz; Mansour, Nagi N.
Abstract: This Proceedings volume contains 32 papers that span a wide range of topics that reflect the ubiquity of turbulence. The papers have been divided into six groups: 1) Solar Simulations; 2) Magnetohydrodynamics (MHD); 3) Large ...
NASA Center: Ames Research Center
Publication Year: 2004
Added to NTRS: 2009-01-14
Document ID: 20050051959
New concepts for Reynolds stress transport equation modeling of inhomogeneous flows
Author(s): Perot, J. Blair; Moin, Parviz
Abstract: The ability to model turbulence near solid walls and other types of boundaries is important in predicting complex engineering flows. Most turbulence modeling has concentrated either on flows which are nearly homogeneous or ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-02
Accession Number: 94N24143; Document ID: 19940019670
Unstructured LES of Reacting Multiphase Flows in Realistic Gas Turbine Combustors
Author(s): Ham, Frank; Apte, Sourabh; Iaccarino, Gianluca; Wu, Xiao-Hua; Herrmann, Marcus; Constantinescu, George; Mahesh, Krishnan; Moin, Parviz
Abstract: As part of the Accelerated Strategic Computing Initiative (ASCI) program, an accurate and robust simulation tool is being developed to perform high-fidelity LES studies of multiphase, multiscale turbulent reacting flows in ...
NASA Center: Ames Research Center
Publication Year: 2003
Added to NTRS: 2008-06-02
Document ID: 20040031696
Search for subgrid scale parameterization by projection pursuit regression
Author(s): Meneveau, C.; Lund, T. S.; Moin, Parviz
Abstract: The dependence of subgrid-scale stresses on variables of the resolved field is studied using direct numerical simulations of isotropic turbulence, homogeneous shear flow, and channel flow. The projection pursuit algorithm, a ...
NASA Center: NASA (non Center Specific)
Publication Year: 1992
Added to NTRS: 2008-06-02
Accession Number: 94N14749; Document ID: 19940010276
Annual Research Briefs, 2004: Center for Turbulence Research
Author(s): Moin, Parviz; Mansour, Nagi N.
Abstract: This report contains the 2004 annual progress reports of the Research Fellows and students of the Center for Turbulence Research in its eighteenth year of operation. Since its inception in 1987, the objective of the CTR has ...
NASA Center: Ames Research Center
Publication Year: 2004
Added to NTRS: 2008-06-02
Document ID: 20050061070
Optimal feedback control of turbulent channel flow
Author(s): Bewley, Thomas; Choi, Haecheon; Temam, Roger; Moin, Parviz
Abstract: Feedback control equations were developed and tested for computing wall normal control velocities to control turbulent flow in a channel with the objective of reducing drag. The technique used is the minimization of a 'cost ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-02
Accession Number: 94N24139; Document ID: 19940019666
Direct numerical simulation of turbulent flow over a backward-facing step
Author(s): Le, Hung; Moin, Parviz
Abstract: The objectives of this study are as follows: (1) to conduct a direct numerical simulation of turbulent backward facing step flow using inflow and outflow conditions; and (2) to provide data in the form of Reynolds stress ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-01
Accession Number: 94N12296; Document ID: 19940007824
A local dynamic model for large eddy simulation
Author(s): Ghosal, Sandip; Lund, Thomas S.; Moin, Parviz
Abstract: The dynamic model is a method for computing the coefficient C in Smagorinsky's model for the subgrid-scale stress tensor as a function of position from the information already contained in the resolved velocity field rather ...
NASA Center: NASA (non Center Specific)
Publication Year: 1993
Added to NTRS: 2008-06-01
Accession Number: 94N12285; Document ID: 19940007813
Annual research briefs, 1987
Author(s): Moin, Parviz; Reynolds, William C.
Abstract: Lagrangian techniques have found widespread application to the prediction and understanding of turbulent transport phenomena and have yielded satisfactory results for different cases of shear flow problems. However, it must ...
NASA Center: NASA (non Center Specific)
Publication Year: 1988
Added to NTRS: 2005-10-13
Accession Number: 88N20583; Document ID: 19880011199; Report Number: NAS 1.26:182693, NASA-CR-182693
Contributions of numerical simulation data bases to the physics, modeling and measurement of turbulence
Author(s): Moin, Parviz; Spalart, Philippe R.
Abstract: The use of simulation data bases for the examination of turbulent flows is an effective research tool. Studies of the structure of turbulence have been hampered by the limited number of probes and the impossibility of ...
NASA Center: Ames Research Center
Publication Year: 1987
Added to NTRS: 2005-10-13
Accession Number: 87N29423; Document ID: 19870019990; Report Number: A-87276, NAS 1.15:100022, NASA-TM-100022
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