SHOCK CAPTURING BY NUMERICAL DISSIPATION CONTROL ON SYMMETRIC AIRFOIL

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YADEGARI M.; ABDOLLAHI JAHDI M.H.

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Paper Information

Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2016 | Volume:6 | Issue:1 Page(s): 285-304

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Information Journal Paper

Title

SHOCK CAPTURING BY NUMERICAL DISSIPATION CONTROL ON SYMMETRIC AIRFOIL

Author(s)

YADEGARI M. | ABDOLLAHI JAHDI M.H. | Issue Writer Certificate

Keywords

SHOCK WAVEQ2

COMPRESSIBLE FLOWQ2

CAPTUREQ1

CONVERGENCEQ1

CHARACTERISTIC VARIABLESQ1

Abstract

In this work, an efficient procedure is presented based on the density-based algorithm with explicit solver to solve the compressible Euler equations on a non-orthogonal mesh with a finite volume formulation. The fluxes of the convected quantities are approximated using the characteristic-based TVD, ACM, and Jameson methods. The aim of this work is to introduce a method based on the CHARACTERISTIC VARIABLES and control of the diffusion term in the classic methods in order to CAPTURE the SHOCK WAVEs. Hereby, an inviscid supersonic flow is solved, and the results obtained are compared together in view of the resolution and accuracy of the SHOCK WAVE capturing and solution CONVERGENCE. The CONVERGENCE target for the mass and momentum equations is decrement of residuals from 10-6. The results obtained show that in the density-based algorithm, the characteristic velocities are better converged due to the augmentation of the limiter, ACM, and TVD methods, capturing the SHOCK WAVEs with higher resolution relative to the Jameson method. SHOCK WAVEs include simple waves reflected waves and waves interactions. Also the ACM method is a useful technique, which prevents the smearing of discontinuities and improves the resolution of shocks.

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APA: Copy

YADEGARI, M., & ABDOLLAHI JAHDI, M.H.. (2016). SHOCK CAPTURING BY NUMERICAL DISSIPATION CONTROL ON SYMMETRIC AIRFOIL. JOURNAL OF SOLID AND FLUID MECHANICS, 6(1), 285-304. SID. https://sid.ir/paper/212787/en

Vancouver: Copy

YADEGARI M., ABDOLLAHI JAHDI M.H.. SHOCK CAPTURING BY NUMERICAL DISSIPATION CONTROL ON SYMMETRIC AIRFOIL. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2016;6(1):285-304. Available from: https://sid.ir/paper/212787/en

IEEE: Copy

M. YADEGARI, and M.H. ABDOLLAHI JAHDI, “SHOCK CAPTURING BY NUMERICAL DISSIPATION CONTROL ON SYMMETRIC AIRFOIL,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 6, no. 1, pp. 285–304, 2016, [Online]. Available: https://sid.ir/paper/212787/en

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