NDLI: Direct numerical simulation of acoustic waves interacting with a shock wave in a quasi-1d convergent-divergent nozzle using an unstructured finite volume algorithm

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Direct numerical simulation of acoustic waves interacting with a shock wave in a quasi-1d convergent-divergent nozzle using an unstructured finite volume algorithm

Content Provider	NASA Technical Reports Server (NTRS)
Author	Mankbadi, Reda R. Bui, Trong T.
Copyright Year	1995
Description	Numerical simulation of a very small amplitude acoustic wave interacting with a shock wave in a quasi-1D convergent-divergent nozzle is performed using an unstructured finite volume algorithm with a piece-wise linear, least square reconstruction, Roe flux difference splitting, and second-order MacCormack time marching. First, the spatial accuracy of the algorithm is evaluated for steady flows with and without the normal shock by running the simulation with a sequence of successively finer meshes. Then the accuracy of the Roe flux difference splitting near the sonic transition point is examined for different reconstruction schemes. Finally, the unsteady numerical solutions with the acoustic perturbation are presented and compared with linear theory results.
File Size	469295
Page Count	7
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960001694
Archival Resource Key	ark:/13960/t9g49mw0h
Language	English
Publisher Date	1995-09-01
Access Restriction	Open
Subject Keyword	Acoustics Perturbation Theory Sound Waves Computational Fluid Dynamics Unstructured Grids Mathematics Digital Simulation Steady Flow Shock Wave Interaction Convergent-divergent Nozzles Finite Volume Method Boundary Conditions Unsteady Flow Flux Difference Splitting Shock Waves Algorithms Least Squares Method Transition Points Time Marching Linear Equations Grid Generation Mathematics Aeroacoustics Compressible Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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