CUED Publications database

Efficient preprocessing of complex geometries for CFD simulations

Ali, Z and Tyacke, J and Watson, R and Tucker, PG and Shahpar, S (2019) Efficient preprocessing of complex geometries for CFD simulations. International Journal of Computational Fluid Dynamics, 33. pp. 98-114. ISSN 1061-8562

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Abstract

Preprocessing remains one the main bottlenecks in the computational fluid Dynamics simulations of flows involving complex geometries as advances in the algorithm development, turbulence modelling and parallel computing are made. To this end, two approaches are presented here to efficiently deal with complex geometries in order to reduce the preprocessing time and manual effort. First, a hybrid blocking approach, combining the medial axis-based method with level set iso-surface is presented to aid the block topology generation for subsequent structured meshing of complex 3D external flow domains. Secondly, a hierarchical geometry handling approach is demonstrated which makes use of the lower order modelling, overset meshes and zonal blocking for efficient preprocessing. Typical external aerodynamics cases have been showcased to describe how such techniques can be used to address modern challenges in the preparation of complex geometries for flow simulations.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Depositing User: Cron Job
Date Deposited: 25 Apr 2019 01:59
Last Modified: 09 Sep 2021 00:56
DOI: 10.1080/10618562.2019.1606421