BRL-CAD와 FDS 오픈소스를 이용한 CFD 해석 시스템의 개발

다국어 초록 (Multilingual Abstract)

An open source based CFD analysis system is developed using FDS(Fire Dynamics Simulator) as solver and BRL-CAD as geometric modeler. The BRL-CAD objects of complex geometries in the computational domain are converted to the FDS inputs, and then the CFD analysis are carried out by FDS. The conversion from BRL-CAD objects to FDS inputs and the following FDS calculations turned out stable and robust in test runs. The CFD system was tested so as to reproduce a wind tunnel experiments, and the NRMSE(Normalized Root Mean Square Error) of the mean wind calculations were about 15% against the measurements with reasonable computational loads. The CFD tool of present study utilizing BRL-CAD, in wide use in weaponeering, is expected to find its usefulness in military research.

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