SHOCK FITTING AND SHOCK CAPTURING SCHEMES FOR COMPUTATION OF HYPERSONIC AXISYMMETRIC FLOWS OVER BLUNT NOSES INCLUDING REAL GAS EFFECTS

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HEJRANFAR K.; KAMALI MOGHADAM R.

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Journal: Sharif Journal of Civil Engineering Year:2008 | Volume:24 | Issue:42 Page(s): 101-110

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Title

SHOCK FITTING AND SHOCK CAPTURING SCHEMES FOR COMPUTATION OF HYPERSONIC AXISYMMETRIC FLOWS OVER BLUNT NOSES INCLUDING REAL GAS EFFECTS

Author(s)

HEJRANFAR K. | KAMALI MOGHADAM R. | Issue Writer Certificate

Keywords

HYPERSONIC FLOWQ3

BLUNT BODIESQ3

EQUILIBRIUM GASQ3

SHOCK FITTING TECHNIQUEQ3

Abstract

In this study, the numerical simulations of hypersonic axisymmetric viscous flows over blunt noses, including EQUILIBRIUM GAS effects, are performed by using shock fitting and shock capturing schemes to examine the effects of shock boundary treatment on the accuracy of computations. The numerical solution of the thin-layer Navier- Stokes (TLNS) equations in the nose region is obtained by using the implicit non-iterative finite-difference algorithm of Beam and Warming and an appropriate formulation of the shock boundary condition for the shock fitting procedure, with considering real gas effects, is implemented. The thermodynamic and transport properties of air are calculated by using the simplified curve fits developed by Srinivasan et. al.. The numerical solutions of hypersonic equilibrium flow over a sphere at Mach number of 16.89 are performed and the calculations for the flow field and the shock shape are compared with available numerical results. The computations are presented for both equilibrium and perfect gas models and the results of flow field and shock shape for the shock fitting and shock capturing procedures are compared with each other. In addition, the role of numerical dissipation and the effects of grid size on the accuracy of the results are investigated.

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APA: Copy

HEJRANFAR, K., & KAMALI MOGHADAM, R.. (2008). SHOCK FITTING AND SHOCK CAPTURING SCHEMES FOR COMPUTATION OF HYPERSONIC AXISYMMETRIC FLOWS OVER BLUNT NOSES INCLUDING REAL GAS EFFECTS. SHARIF: CIVIL ENINEERING, 24(42), 101-110. SID. https://sid.ir/paper/127986/en

Vancouver: Copy

HEJRANFAR K., KAMALI MOGHADAM R.. SHOCK FITTING AND SHOCK CAPTURING SCHEMES FOR COMPUTATION OF HYPERSONIC AXISYMMETRIC FLOWS OVER BLUNT NOSES INCLUDING REAL GAS EFFECTS. SHARIF: CIVIL ENINEERING[Internet]. 2008;24(42):101-110. Available from: https://sid.ir/paper/127986/en

IEEE: Copy

K. HEJRANFAR, and R. KAMALI MOGHADAM, “SHOCK FITTING AND SHOCK CAPTURING SCHEMES FOR COMPUTATION OF HYPERSONIC AXISYMMETRIC FLOWS OVER BLUNT NOSES INCLUDING REAL GAS EFFECTS,” SHARIF: CIVIL ENINEERING, vol. 24, no. 42, pp. 101–110, 2008, [Online]. Available: https://sid.ir/paper/127986/en

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