欢迎登录材料期刊网

材料期刊网

高级检索

为揭示不同磁致纵向涡对通道内空气对流换热的影响规律,分别就两极和四极钕铁硼永磁体作用下的矩形通道内的对流换热进行了数值模拟.模拟以通道入口段的流动和换热为对象,得到了不同Re和不同壁温下的流场和温度场,对流换热的Nu和阻力系数f以及场协同数Fc.结果表明,不同纵向涡形式下的流场和温度场的协同性不同,具有八纵向涡形式的对流换热的协同性优于四纵向涡形式,强化效果也优于四纵向涡.

参考文献

[1] Jacobi A M;Shah R K .Heat Transfer Surface Enhancement Through the Use of longitudinal Vortices:a Review of Resent Progress[J].Experimental Thermal and Fluid Science,1995,11(03):295-309.
[2] 孟继安 .不连续双斜向内肋换热管[P].CN 03138077.8,2003.
[3] GUO Zengyuan.Mechanism and control of convective heat transfer-- Coordination of velocity and heat flow fields[J].科学通报(英文版),2001(07):596-599.
[4] Wen-Quan Tao;Zeng-Yuan Guo;Bu-Xuan Wang .Field synergy principle for enhancing convective heat transfer-its extension and numerical verifications[J].International Journal of Heat and Mass Transfer,2002(18):3849-3856.
[5] Wakayama N I .Behavior of Gas Flow Under Gradient Magnetic Fields[J].Journal of Applied Physics,1991,69(04):2734-2736.
[6] Yang L J;Ren J X;Song Y Z et al.Convection Heat Transfer Enhancement of Air in a Rectangular Duct by Application of a Magnetic Quadrupole Field[J].International Journal of Engineering Science,2004,42(5-6):491-507.
[7] Lijun Yang;Jianxun Ren;Yaozu Song .Free convection of a gas induced by a magnetic quadrupole field[J].Journal of Magnetism and Magnetic Materials,2003(3):377-384.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%