http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
계면마찰항을 고려한 이상유동에서 파동전파에 대한 수치적 연구
염금수(G.S. Yeom),장근식(K.S. Chang),정문선(M.S. Chung) 한국전산유체공학회 2009 한국전산유체공학회 학술대회논문집 Vol.2009 No.11
We numerically investigated propagation of various waves in the two-phase .flows such as sound wave, shock wave, rarefaction wave, and contact discontinuity in terms of pressure, void Faction, velocity and density of the two phases. The waves have been generated by a hydrodynamic shock tube, a pair of symmetric impulsive expansion, impulsive pressure and impulsive void waves. The six compressible two-fluid two-phase conservation laws with interfacial Fiction terms have been solved in two Factional steps. The first PDE Operator is solved by the HLL scheme and the second Source Operator by the semi-implicit stiff ODE solver. In the HLL scheme, the fastest wave speeds were estimated by the analytic eigenvalues of an approximate Jacobian matrix. We have discussed how the interfacial friction terms affect the wave structures in the numerical solution.