PERFORMANCE OF CONVECTIVE SCHEMES IN DENSITY BASED SOLVER

Chandra, Athkuri Sai Saketha and Sharma, Vatsalya and Assam, Ashwani and Eswaran, Vinayak (2018) PERFORMANCE OF CONVECTIVE SCHEMES IN DENSITY BASED SOLVER. In: Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017), December 27-30, 2017, BITS-Pilani, Hyderabad.

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Abstract

In the applications where both compressible and near incompressible regimes are involved, there is need for algorithms which should work in both compressible and incompressible regimes. In this paper, we solved compressible Euler and Navier-Stokes equations by using three convective schemes (AUSM+, SLAU2, Rho with Preconditioning) which are known to do reasonably well in both the regimes and compared them with standard bench mark cases in subsonic, transonic and supersonic regions obtained from literature. Furthermore, the performance and computational performance of these schemes are compared for these cases using the explicit time stepping method with CFL 0.5 for steady state solutions. It is seen that AUSM+ and SLAU2 are twice as fast as Rho with preconditioning.

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IITH Creators:	IITH Creators ORCiD Eswaran, Vinayak UNSPECIFIED
Item Type:	Conference or Workshop Item (Paper)
Subjects:	Physics > Mechanical and aerospace
Divisions:	Department of Mechanical & Aerospace Engineering
Depositing User:	Team Library
Date Deposited:	02 May 2019 07:56
Last Modified:	02 May 2019 07:56
URI:	http://raiithold.iith.ac.in/id/eprint/5049
Publisher URL:	http://doi.org/10.1615/IHMTC-2017.10
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