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Implicit gradient reconstruction (IGR) method for compressible flow simulation

Singh, Manish K and Munikrishna, N and Ramesh, V and Balakrishnan, N (2017) Implicit gradient reconstruction (IGR) method for compressible flow simulation. In: 15th Asian Congress of Fluid Mechanics (15ACFM), NOV 21-23, 2016, Kuching, MALAYSIA.

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Official URL: http://dx.doi.org/10.1088/1742-6596/822/1/012030

Abstract

The classical CIR scheme is modified by introducing a phi parameter which allows an explicit control of dissipation. Also, this permits a seamless integration of the upwind and central difference based schemes. It is demonstrated that the phi parameter can be linked to solution reconstruction and thus second order accuracy can be achieved effectively with a first order formula. An objective way of determining phi based on solution gradients on the volume interface is established. These gradients in turn are also used for viscous flux computation and therefore come at no additional cost. The efficacy of the proposed methodology is established by solving a number of standard test problems, both in 1D and 2D.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering
Depositing User: Id for Latest eprints
Date Deposited: 21 Jul 2017 10:25
Last Modified: 21 Jul 2017 10:25
URI: http://eprints.iisc.ac.in/id/eprint/57475

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