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http://dx.doi.org/10.3795/KSME-B.2002.26.11.1521

Unstructured Pressure Based Method for All Speed Flows  

Choi, Hyung-Il (한양대학교 대학원 기계공학과)
Lee, Do-Hyung (한양대학교 기계·정보경영학부)
Maeng, Joo-Sung (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.26, no.11, 2002 , pp. 1521-1530 More about this Journal
Abstract
This article proposes a pressure based method for predicting flows at all speeds. The compressible SIMPLE algorithm is extended to unstructured grid framework. Convection terms are discretized using second-order scheme with deferred correction approach. Diffusion term discretization is based on structured grid analogy that can be easily adopted to hybrid unstructured grid solver. This method also uses node centered scheme with edge based data structure for memory and computing time efficiency of arbitrary grid types. Both incompressible and compressible benchmark problems are solved using the above methodology. The demonstration of this method is extended to slip flow problem that has low Reynolds number but compressibility effect. It is shown that the proposed method can improve efficiency in memory usage and computing time without losing any accuracy.
Keywords
Pressure Based Method; SIMPLE Algorithm; Node Contered Scheme; Unstructured Grid;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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