NUMERICAL ANALYSIS OF SUPERSONIC FLOWS IN UNIFIED COORDINATE SYSTEM, USING ITERATIVE RIEMANN PROBLEM AND GODUNOV SCHEME

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ZAREYAN B.; MIRZAEI M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Aerospace Mechanics Year:2011 | Volume:7 | Issue:3 (25) Page(s): 17-28

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Title

NUMERICAL ANALYSIS OF SUPERSONIC FLOWS IN UNIFIED COORDINATE SYSTEM, USING ITERATIVE RIEMANN PROBLEM AND GODUNOV SCHEME

Author(s)

ZAREYAN B. | MIRZAEI M. | Issue Writer Certificate

Keywords

RIEMANN PROBLEMQ2

UNIFIED COORDINATE SYSTEM (UCS)Q2

GODUNOV SCHEMEQ2

SLIP LINEQ2

SHOCKQ2

Abstract

Using suitable coordinate systems in CFD have been of interest for many researchers. The objective of this study is numerical modeling of supersonic flows, using a new coordinate system, i.e. Unified coordinate system (UCS) and iterative RIEMANN PROBLEM solution. Unified coordinate system has advantage over traditional coordinate systems (Eulerian/Lagrangian) in supersonic flows, especially in discontinuous regions (shocks and expansions). Moreover, most of the difficulties of the traditional coordinate system may be removed using UCS. For 2-D gas dynamics calculations in UCS, it is required to approximate fluxes on cell faces. This is normally modeled by RIEMANN PROBLEM solution. It is important to mention that in using UCS, there is no need to generate a body-fitted mesh prior to computing flow past a body, the grid is automatically generated by the flow. The UCS has the advantages of both Eulerian and Lagrangian systems. These can be seen in our results, which also show the high speed in our computations.

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References

COMPUTATIONAL SIMULATION OF TURBULENT SUPERSONIC FLOWS AROUND AXISYMMETRIC BODIES USING A PNS/TLNS MULTI-BLOCK APPROACH

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APA: Copy

ZAREYAN, B., & MIRZAEI, M.. (2011). NUMERICAL ANALYSIS OF SUPERSONIC FLOWS IN UNIFIED COORDINATE SYSTEM, USING ITERATIVE RIEMANN PROBLEM AND GODUNOV SCHEME. AEROSPACE MECHANICS JOURNAL, 7(3 (25)), 17-28. SID. https://sid.ir/paper/101900/en

Vancouver: Copy

ZAREYAN B., MIRZAEI M.. NUMERICAL ANALYSIS OF SUPERSONIC FLOWS IN UNIFIED COORDINATE SYSTEM, USING ITERATIVE RIEMANN PROBLEM AND GODUNOV SCHEME. AEROSPACE MECHANICS JOURNAL[Internet]. 2011;7(3 (25)):17-28. Available from: https://sid.ir/paper/101900/en

IEEE: Copy

B. ZAREYAN, and M. MIRZAEI, “NUMERICAL ANALYSIS OF SUPERSONIC FLOWS IN UNIFIED COORDINATE SYSTEM, USING ITERATIVE RIEMANN PROBLEM AND GODUNOV SCHEME,” AEROSPACE MECHANICS JOURNAL, vol. 7, no. 3 (25), pp. 17–28, 2011, [Online]. Available: https://sid.ir/paper/101900/en

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