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An implicit hybrid method for the computation of rotorcraft flows

Published online by Cambridge University Press:  12 October 2018

M. A. Woodgate  and
G. N. Barakos
M. A. Woodgate*
Affiliation:
CFD Laboratory School of Engineering James Watt South BuildingUniversity of Glasgow Glasgow, UK
G. N. Barakos*
Affiliation:
CFD Laboratory School of Engineering James Watt South BuildingUniversity of Glasgow Glasgow, UK
*
[email protected]
[email protected]
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Abstract

There is a wide variety of CFD grid types including Cartesian, structured, unstructured and hybrids, as well as, numerous methodologies of combining these to reduce the time required to generate high-quality grids around complex configurations. If the grid methodologies were implemented in different codes, they should be written in such a way as to obtain the maximum performance from the available computer resources. A common interface should also be required to allow for ease of use. However, it is very time consuming to develop, maintain and add extra functionally to different codes. This paper examines the possibility of taking an existing CFD solver, the Helicopter Multi-Block (HMB) CFD method, and implementing a new grid type while reusing as much as possible the original code base. The paper presents some of the challenges encountered in extending the code which was written for a single mesh type, to a more flexible solver that is still computationally efficient but can cope with a variety of grid types.

Keywords

Computational fluid dynamicshybrid meshesimplicit methods
Type
Research Article
Information
The Aeronautical Journal , Volume 122 , Issue 1256 , October 2018 , pp. 1522 - 1556
Copyright
© Royal Aeronautical Society 2018 

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