한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
권호 표지

운동량 방정식의 대류항 이산화 방법이 다차원 2상 유동 해석에 미치는 영향 분석

AN ANALYSIS OF DISCRETIZATION EFFECT OF MOMENTUM CONVECTION TERM FOR MULTI-DIMENSIONAL TWO-PHASE FLOWS

  • 발행 : 2009.09.30
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초록

The non-conservative form of momentum equations is often used for some two-phase flow codes instead of a conservative form because of numerical convenience. Another non-conservative form, so called, a semi-conservative form can improve the numerical solution of these codes maintaining the numerical convenience. It is close to the conservative form but still maintains the feature of the non-conservative form. A semi-conservative form of the momentum equations and a non-conservative form of the momentum equations are implemented in CUPID[1] code. The numerical results of the semi-conservative and the non-conservative forms are compared against analytical solutions and the solutions of the FLUENT code that uses the conservative form. The results clearly showed that the semi-conservative form of the momentum equations provides better solutions than the non-conservative form, especially for heterogeneous two-phase flows.

키워드

참고문헌

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