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Higher order compact-flowfield dependent variation (HOCFDV) method for solving navier-stokes equations

Elfaghi, Abdulhafid M. and Asrar, Waqar and Omar, Ashraf Ali E. (2010) Higher order compact-flowfield dependent variation (HOCFDV) method for solving navier-stokes equations. In: The 8th Asian Computational Fluid Dynamics Conference, 10-14 January, 2010, Hong Kong.

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In this paper, a novel high order accurate method, namely high order compact flowfield dependent variation (HOC-FDV) method, has been developed to solve full Navier Stokes equations. The new scheme is a third order accuracy in time and fourth order accuracy in space. The spatial derivatives in the third order accuracy in time, flowfield dependent variation (FDV) equations proposed by Chung, are approximated using high order compact (HOC) Hermitian (Pade) scheme. The solution procedure at each time step consists of a system of block tri-diagonal matrix which can be solved efficiently in a standard manner. Two numerical examples namely; shock tube (Sod) problem and supersonic flow over a flat plate are tested to examine the accuracy and shockwave boundary layer interaction. The results showed the high accuracy and the capability of the new scheme to capture the shock and to simulate accurately the separation and discontinuity.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: 4441/2384
Uncontrolled Keywords: Navier Stokes equations, Flowfield-dependent variation (FDV), Higher-order compact(HOC), Shock capturing, Viscous flow.
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Prof. Ashraf Omar
Date Deposited: 26 Sep 2011 15:37
Last Modified: 20 May 2016 08:53
URI: http://irep.iium.edu.my/id/eprint/2384

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