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

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HEYDARI MOHAMMAD REZA; TAYEBI RAHNI M.

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Journal: Journal of Aerospace Mechanics Year:2008 | Volume:3 | Issue:4 Page(s): 1-11

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Information Journal Paper

Title

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

Author(s)

HEYDARI MOHAMMAD REZA | TAYEBI RAHNI M. | Issue Writer Certificate

Keywords

STRUCTURED MULTI-BLOCK GRIDQ3

BASE FLOWQ2

SUPERSONIC TURBULENT FLOWQ3

THIN-LAYER NAVEIR-STOKES (TLNS) EQUATINSQ3

PARABOLIZED NAVEIR-STOKES (PNS) EQUATIONSQ3

Abstract

In this work, turbulent supersonic flows over axisymmetric bodies, including the base, are investigated, using multi-block grid to solve the Navier-Stokes equations. Patched method has been used near the interfaces. Our numerical scheme was implicit Beam-Warming centeral differencing, while Baldwin-Lomax turbulence modeling was used to close the Reynolds averaged Navier-Stokes equations. In order to take advantage of structured grids, multi-block grid has been used widely in the past for complex geometries. On the other hand, different parts of such flow may require different forms of the governing equations. For supersonic flows over missile geometries, the thin layer Naveir-Stokes equations (TLNS) are usually used. But, the easiest and the fastest approach would be the use of parabolized Naveir-Stokes equations (PNS) everywhere. Note, for regions such as the missile’s blunt nose, near fins, and the BASE FLOW, we do not have to use the PNS equations. Therefore, this leads to the use of both TLNS and PNS equations with multi-block solution approaches. The resultes of this new version of our code (MBPTLNS), which is an extension of our original code (MBTLNS) [1], were compared with both computational and experimental benchmark data and showed close agreements.

Cites

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

References

NUMERICAL SIMULATION OF SUPERSONIC TURBULENT FLOW OVER BODIES OF REVOLUTION INCLUDING THE BASE, USING MULTIBLOCK GRID

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APA: Copy

HEYDARI, MOHAMMAD REZA, & TAYEBI RAHNI, M.. (2008). COMPUTATIONAL SIMULATION OF TURBULENT SUPERSONIC FLOWS AROUND AXISYMMETRIC BODIES USING A PNS/TLNS MULTI-BLOCK APPROACH. AEROSPACE MECHANICS JOURNAL, 3(4), 1-11. SID. https://sid.ir/paper/101892/en

Vancouver: Copy

HEYDARI MOHAMMAD REZA, TAYEBI RAHNI M.. COMPUTATIONAL SIMULATION OF TURBULENT SUPERSONIC FLOWS AROUND AXISYMMETRIC BODIES USING A PNS/TLNS MULTI-BLOCK APPROACH. AEROSPACE MECHANICS JOURNAL[Internet]. 2008;3(4):1-11. Available from: https://sid.ir/paper/101892/en

IEEE: Copy

MOHAMMAD REZA HEYDARI, and M. TAYEBI RAHNI, “COMPUTATIONAL SIMULATION OF TURBULENT SUPERSONIC FLOWS AROUND AXISYMMETRIC BODIES USING A PNS/TLNS MULTI-BLOCK APPROACH,” AEROSPACE MECHANICS JOURNAL, vol. 3, no. 4, pp. 1–11, 2008, [Online]. Available: https://sid.ir/paper/101892/en

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