中国物理B ›› 2013, Vol. 22 ›› Issue (7): 75202-075202.doi: 10.1088/1674-1056/22/7/075202
• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇 下一篇
张喜东, 黄护林
Zhang Xi-Dong (张喜东), Huang Hu-Lin (黄护林)
摘要: The effect of the lateral walls on the fluid flow and heat transfer is investigated when the fluid passes a magnetic obstacle in present paper. The blockage ratio β that represents the ratio between the width of external magnet My and the spanwise width Ly is employed to depict the effect. The finite volume method (FVM) based on the PISO algorithm is applied for the blockage ratios of 0.2, 0.3, and 0.4. The results show that, the value of Strouhal number St increases as the blockage ratio β increases, and for small β, the variation of St is very small when the interaction parameter and Reynolds number are increasing. Moreover, the cross-stream mixing induced by the magnetic obstacle can enhance the wall-heat transfer and the maximum value of the overall heat transfer increment is about 50.5%.
中图分类号: (Magnetohydrodynamics (including electron magnetohydrodynamics))