한국전산유체공학회지 (Journal of computational fluids engineering)
- 제4권3호
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- Pages.63-70
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- 1999
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- 1598-6071(pISSN)
화학반응을 수반하는 극초음속 희박류 유동의 직접모사법 개발
A DSMC Technique for the Analysis of Chemical Reactions in Hypersonic Rarefied Flows
초록
A Direct simulation Monte-Carlo (DSMC) code is developed, which employs the Monte-Carlo statistical sampling technique to investigate hypersonic rarefied gas flows accompanying chemical reactions. The DSMC method is a numerical simulation technique for analyzing the Boltzmann equation by modeling a real gas flow using a representative set of molecules. Due to the limitations in computational requirements. the present method is applied to a flow around a simple two-dimensional object in exit velocity of 7.6 km/sec at an altitude of 90 km. For the calculation of chemical reactions an air model with five species (O₂, N₂, O, N, NO) and 19 chemical reactions is employed. The simulated result showed various rarefaction effects in the hypersonic flow with chemical reactions.
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