CUED Publications database

Optimal multi-block mesh generation for CFD

Ali, Z and Dhanasekaran, PC and Tucker, PG and Watson, R and Shahpar, S (2017) Optimal multi-block mesh generation for CFD. In: International Journal of Computational Fluid Dynamics, -- to -- pp. 195-213..

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Abstract

abstractAn assessment of various automatic block topology generation techniques for creating structured meshes has been performed in the first part of the paper. The objective is to find out optimal blocking methods for generating meshes suitable for flow simulations. The comparison has been carried out using an adjoint-based error analysis of the meshes generated by these block topologies. Different objective functions and numerical schemes have been used for this assessment. It is found that, in general, the medial axis-based approaches provide optimal blocking and yields better accuracy in computing the functional of interest. This is because the medial axis-based methods produce meshes which have better flow alignment specially in case of internal flows. In the second part of the paper, the adjoint-based error indicator has been used to adapt the block topology in the regions of large error.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Uncontrolled Keywords: Multi-block structured mesh generation medial axis transform automatic blocking distance field level sets adjoint-based error analysis
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Div A > Turbomachinery
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:06
Last Modified: 08 Aug 2017 01:50
DOI: