التفاصيل البيبلوغرافية
| العنوان: |
계면마찰항을 고려한 이상유동에서 파동전파에 대한 수치적 연구 ; TWO-PHASE WAVE PROPAGATIONS PREDICTED BY HLL SCHEME WITH INTERFACIAL FRICTION TERMS |
| المؤلفون: |
염금수, 장근식, 정문선, Yeom, G.S., Chang, K.S., Chung, M.S. |
| بيانات النشر: |
한국전산유체공학회 |
| سنة النشر: |
2009 |
| المجموعة: |
Korea Advanced Institute of Science and Technology: KOASAS - KAIST Open Access Self-Archiving System |
| مصطلحات موضوعية: |
파동전파, 이상유동, 이유체모델, HLL 기법, 계면마찰, Jacobian 행렬, 고유치, Wave Propagation, Two-Phase Flow, Two-Fluid Model, HLL Scheme, Interfacial Friction, Jacobian Matrix, Eigenvalues |
| الوصف: |
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 fraction, 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 friction terms have been solved in two fractional 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. ; 항공우주공학전공 |
| نوع الوثيقة: |
conference object |
| اللغة: |
Korean |
| الإتاحة: |
http://hdl.handle.net/10203/22309Test |
| رقم الانضمام: |
edsbas.ED057C41 |
| قاعدة البيانات: |
BASE |
