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난류 자기유체역학 유동 예측을 위한 난류모형의 평가와 개선
Evaluation and improvement of turbulence model for prediction of turbulent magnetohydrodynamic flows
- 신종근;
- 곽동걸
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 mail 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.
키워드
Magnetohydrodynamic(MHD; 자기유체역학); Elliptic Blending(타원혼합); Turbulence model(난류모형); Magnetic force(자기력)
- 제목
- 난류 자기유체역학 유동 예측을 위한 난류모형의 평가와 개선
- 제목 (타언어)
- Evaluation and improvement of turbulence model for prediction of turbulent magnetohydrodynamic flows
- 저자
- 신종근; 곽동걸
- 발행일
- 2016-10
- 유형
- Y
- 저널명
- 한국기계기술학회지
- 권
- 18
- 호
- 5
- 페이지
- 707 ~ 714