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There are a total of 20 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Two-dimensional mesh embedding for Galerkin B-spline methods
Author(s): Shariff, Karim; Moser, Robert D.
Abstract: A number of advantages result from using B-splines as basis functions in a Galerkin method for solving partial differential equations. Among them are arbitrary order of accuracy and high resolution similar to that of compact ...
NASA Center: Ames Research Center
Publication Year: 1995
Added to NTRS: 2008-08-04
Accession Number: 96N11217; Document ID: 19960001210; Report Number: A-950083, NAS 1.15:110361, NASA-TM-110361
Direct Numerical Simulation of Incompressible Pipe Flow Using a B-Spline Spectral Method
Author(s): Loulou, Patrick; Moser, Robert D.; Mansour, Nagi N.; Cantwell, Brian J.
Abstract: A numerical method based on b-spline polynomials was developed to study incompressible flows in cylindrical geometries. A b-spline method has the advantages of possessing spectral accuracy and the flexibility of standard ...
NASA Center: Ames Research Center
Publication Year: 1997
Added to NTRS: 2005-08-25
Accession Number: 97N16235; Document ID: 19970011270; Report Number: A-975743, NAS 1.15:110436, NASA-TM-110436
Coherent structures in a simulated turbulent mixing layer
Author(s): Moser, Robert D.; Rogers, Michael M.
Abstract: A direct numerical simulation of a plane turbulent mixing layer has been performed. The simulation was initialized using two turbulent velocity fields obtained from direct numerical simulation of a turbulent boundary layer ...
NASA Center: Ames Research Center
Publication Year: 1992
Added to NTRS: 2005-08-25
Accession Number: 93N18885; Document ID: 19930009696; Report Number: A-92197, NAS 1.15:103980, NASA-TM-103980
The three-dimensional evolution of a plane mixing layer. Part 2: Pairing and transition to turbulence
Author(s): Moser, Robert D.; Rogers, Michael M.
Abstract: The evolution of three-dimensional temporally evolving plane mixing layers through as many as three pairings was simulated numerically. Initial conditions for all simulations consisted of a few low-wavenumber disturbances, ...
NASA Center: Ames Research Center
Publication Year: 1992
Added to NTRS: 2005-08-25
Accession Number: 93N23417; Document ID: 19930014228; Report Number: A-92068, NAS 1.15:103926, NASA-TM-103926
Kolmogorov Inertial Range Spectra for Inhomogeneous Turbulence
Author(s): Moser, Robert D.
Abstract: It is shown that the statistical orthogonality of the Karhunen-Loeve (KL) eigenfunctions with respect to both energy and dissipation makes them a particularly good basis for the definition of an energy spectrum in ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 97N71913; Document ID: 19970020031; Report Number: NAS 1.15:112708, NASA-TM-112708
Direct simulation of a self-similar plane wake
Author(s): Moser, Robert D.; Rogers, Michael M.
Abstract: Direct simulations of two time-developing turbulent wakes have been performed. Initial conditions for the simulations were obtained from two realizations of a direct simulation of a turbulent boundary layer at momentum ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 94N34917; Document ID: 19940030411; Report Number: A-94070, NAS 1.15:108815, NASA-TM-108815
Direct Simulation of a Self-Similar Turbulent Mixing Layer
Author(s): Rogers, Michael M.; Moser, Robert D.
Abstract: Three direct numerical simulations of incompressible turbulent plane mixing layers have been performed. All the simulations were initialized with the same two velocity fields obtained from a direct numerical simulation of a ...
NASA Center: Ames Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 97N72099; Document ID: 19970022168; Report Number: NAS 1.15:112707, NASA-TM-112707
The three-dimensional evolution of a plane mixing layer. Part 1: The Kelvin-Helmholtz roll-up
Author(s): Rogers, Michael M.; Moser, Robert D.
Abstract: The Kelvin Helmholtz roll up of three dimensional, temporally evolving, plane mixing layers were simulated numerically. All simulations were begun from a few low wavenumber disturbances, usually derived from linear stability ...
NASA Center: Ames Research Center
Publication Year: 1991
Added to NTRS: 2005-08-25
Accession Number: 92N11303; Document ID: 19920002085; Report Number: A-91115-PT-1, NAS 1.15:103856, NASA-TM-103856
Characteristic eddy decomposition of turbulence in a channel
Author(s): Moin, Parviz; Moser, Robert D.
Abstract: The proper orthogonal decomposition technique (Lumley's decomposition) is applied to the turbulent flow in a channel to extract coherent structures by decomposing the velocity field into characteristic eddies with random ...
NASA Center: Ames Research Center
Publication Year: 1991
Added to NTRS: 2005-08-25
Accession Number: 91N21470; Document ID: 19910012157; Report Number: A-88081, NAS 1.15:100065, NASA-TM-100065
Characteristic-eddy decomposition of turbulence in a channel
Author(s): Moin, Parviz; Moser, Robert D.
Abstract: Lumley's proper orthogonal decomposition technique is applied to the turbulent flow in a channel. Coherent structures are extracted by decomposing the velocity field into characteristic eddies with random coefficients. A ...
NASA Center: Ames Research Center
Publication Year: 1989
Added to NTRS: 2004-11-03
Accession Number: 89A37941; Document ID: 19890050570
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