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There are a total of 34 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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Numerical Simulation of the Oscillations in a Mixer: An Internal Aeroacoustic Feedback System
Author(s): Jorgenson, Philip C. E.; Loh, Ching Y.
Abstract: The space-time conservation element and solution element method is employed to numerically study the acoustic feedback system in a high temperature, high speed wind tunnel mixer. The computation captures the self-sustained ...
NASA Center: Glenn Research Center
Publication Year: 2004
Added to NTRS: 2005-08-25
Document ID: 20040173072; Report Number: E-14751, NASA/TM-2004-213304
An explicit Runge-Kutta method for unsteady rotor/stator interaction
Author(s): Jorgenson, Philip C. E.; Chima, Rodrick V.
Abstract: A quasi-three-dimensional rotor/stator analysis has been developed for blade-to-blade flows in turbomachinery. The analysis solves the unsteady Euler or thin-layer Navier-Stokes equations in a body-fitted coordinate system. ...
NASA Center: Glenn Research Center
Publication Year: 1988
Added to NTRS: 2005-08-25
Accession Number: 88N14967; Document ID: 19880005585; Report Number: AIAA PAPER 88-0049, E-3959, NAS 1.15:100787, NASA-TM-100787
An implicit numerical scheme for the simulation of internal viscous flows on unstructured grids
Author(s): Jorgenson, Philip C. E.; Pletcher, Richard H.
Abstract: The Navier-Stokes equations are solved numerically for two-dimensional steady viscous laminar flows. The grids are generated based on the method of Delaunay triangulation. A finite-volume approach is used to discretize the ...
NASA Center: Glenn Research Center
Publication Year: 1994
Added to NTRS: 2005-08-25
Accession Number: 94N23554; Document ID: 19940019081; Report Number: AIAA PAPER 94-0306, E-8279, ICOMP-93-48, NAS 1.15:106437, NASA-TM-106437
Essentially nonoscillatory (ENO) reconstructions via extrapolation
Author(s): Suresh, Ambady; Jorgenson, Philip C. E.
Abstract: In this paper, the algorithm for determining the stencil of a one-dimensional Essentially Nonoscillatory (ENO) reconstruction scheme on a uniform grid is reinterpreted as being based on extrapolation. This view leads to ...
NASA Center: Glenn Research Center
Publication Year: 1995
Added to NTRS: 2005-08-25
Accession Number: 95N25879; Document ID: 19950019459; Report Number: AIAA PAPER 95-0467, E-9607, NAS 1.15:106907, NASA-TM-106907
Computation of a Single Airfoil Gust Response and Gust-Cascade Interaction Using the CE/SE Method
Author(s): Wang, Xiao-Yen; Himansu, Ananda; Chang, Sin-Chung; Jorgenson, Philip C. E.
Abstract: The problems 1 and 2 in Category 3 are solved using the space-time conservation element and solution element (CE/SE) method. Problem 1 concerns the acoustic field generated by the interaction of a harmonic vertical gust with ...
NASA Center: Glenn Research Center
Publication Year: 2004
Added to NTRS: 2005-08-25
Document ID: 20040182311
Computing Axisymmetric Jet Screech Tones Using Unstructured Grids
Author(s): Jorgenson, Philip C. E.; Loh, Ching Y.
Abstract: The space-time conservation element and solution element (CE/SE) method is used to solve the conservation law form of the compressible axisymmetric Navier-Stokes equations. The equations are time marched to predict the ...
NASA Center: Glenn Research Center
Publication Year: 2002
Added to NTRS: 2005-08-25
Document ID: 20030003705; Report Number: AIAA Paper 2002-3889, E-13494, NAS 1.15:211799, NASA/TM-2002-211799
Parallel CE/SE Computations via Domain Decomposition
Author(s): Himansu, Ananda; Jorgenson, Philip C. E.; Wang, Xiao-Yen; Chang, Sin-Chung
Abstract: This paper describes the parallelization strategy and achieved parallel efficiency of an explicit time-marching algorithm for solving conservation laws. The Space-Time Conservation Element and Solution Element (CE/SE) ...
NASA Center: Glenn Research Center
Publication Year: 2000
Added to NTRS: 2005-08-25
Document ID: 20000121133; Report Number: E-12476, NAS 1.15:210480, NASA/TM-2000-210480
GAP Noise Computation By The CE/SE Method
Author(s): Loh, Ching Y.; Chang, Sin-Chung; Wang, Xiao Y.; Jorgenson, Philip C. E.
Abstract: A typical gap noise problem is considered in this paper using the new space-time conservation element and solution element (CE/SE) method. Implementation of the computation is straightforward. No turbulence model, LES (large ...
NASA Center: Glenn Research Center
Publication Year: 2001
Added to NTRS: 2005-08-25
Document ID: 20010047833; Report Number: E-12634, FEDSM-2001-18136, NAS 1.15:210703, NASA/TM-2001-210703
A Unified Wall Boundary Treatment for Viscous and Inviscid Flows in the CE/SE Method
Author(s): Chang, Sin-Chung; Zhang, Zeng-Chen; Yu, S. T. John; Jorgenson, Philip C. E.
Abstract: In the setting of the conservation element-solution element (CE/SE) method, a new and unified wall boundary treatment for the Navier-Stokes and Euler Equations is proposed. In essence, the shear stress exerted on the fluid ...
NASA Center: Glenn Research Center
Publication Year: 2000
Added to NTRS: 2005-08-25
Document ID: 20000120287; Report Number: E-12483, NAS 1.15:210517, NASA/TM-2000-210517
Computation of Feedback Aeroacoustic System by the CE/SE Method
Author(s): Loh, Ching Y.; Wang, Xiao Y.; Chang, Sin-Chung; Jorgenson, Philip C. E.
Abstract: It is well known that due to vortex shedding in high speed flow over cutouts, cavities, and gaps, intense noise may be generated. Strong tonal oscillations occur in a feedback cycle in which the vortices shed from the ...
NASA Center: Glenn Research Center
Publication Year: 2000
Added to NTRS: 2005-08-25
Document ID: 20000120114; Report Number: E-12475, NAS 1.15:210479, NASA/TM-2000-210479
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