난류 자기유체역학 유동 예측을 위한 난류모형의 평가와 개선 Evaluation and improvement of turbulence model for prediction of turbulent agnetohydrodynamic flows
한국기계기술학회지
(韓國機械技術學會誌)
제18권 제5호
(2016.10)
pp.707-714
pp.707-714
한국기계기술학회
(Korean Society of Mechanical Technology)
초록
The characteristics of the turbulent MHD channel flows are analysed within the elliptic blending model. The evaluation of additional terms representing the MDH interactions in the transport equation for the turbulent kinetic energy and dissipation rate is carried out firstly. And then, the improvement of model coefficients for the additional terms is achieved. Regardless of the magnetic field orientation, perpendicular and parrel to the main flow, the model coefficients for the additional terms are not changed to maintain the generality of the present model. The prediction results are directly compared to the DNS data to assess the performance of the present model.
저자