한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2007년도 추계 학술대회논문집
- /
- Pages.243-248
- /
- 2007
비정렬격자 2-유체 3-상 유동 해석 기법
NUMERICAL METHOD FOR THE TWO-FLUID THREE-FIELD MODEL ON AN UNSTRUCTURED MESH
- Kim, J. ;
-
Park, I.K.
;
- Cho, H.K. ;
-
Yoon, H.Y.
;
-
Jeong, J.J.
- 발행 : 2007.10.26
초록
A three-dimensional (3D) unstructured hydrodynamic solver for transient two-phase flows has been developed. A two-fluid three-field model was adopted for the two-phase flows. The three fields represent a continuous liquid, an entrained liquid, and a vapour field. The hydrodynamic solver is for the 3D component of a nuclear system code and the component-scale analysis tools for transient two-phase flows. The finite volume method and unstructured grid are adopted, which are useful for the flows in a complicated geometry. The semi-implicit ICE (Implicit Continuous-fluid Eulerian) numerical scheme has been adapted to the unstructured non-staggered grid. This paper presents the numerical method and the preliminary results of the calculations. The results show that the numerical scheme is robust and predicts the phase change and the flow transitions due to boiling and flashing problems well.