| 磁热场协同作用下的传热传质强化 |
| |
| 引用本文： | 吕树申,杨茉,华贲.磁热场协同作用下的传热传质强化[J].工程热物理学报,2004,25(3):460-462. |
| |
| 作者姓名： | 吕树申 杨茉 华贲 |
| |
| 作者单位： | 中山大学化学与化学工程学院,广州,510275;上海理工大学动力学院,上海,200093;华南理工大学,广州,510641 |
| |
| 基金项目： | 国家重点基础研究发展规划项目资助(No.G20000263) |
| |
| 摘 要： | 通过三维非稳态动量和能量方程的模拟,对圆管通道内空气的磁热风作用机理进行了分析。得出了无量纲长径比为 20、30、62和100,带电线圈和管道的直径比从2到200时磁场密度的梯度的影响规律。磁场与温度场的协同作用改变了速度和温度边界层的分布,存在最优条件下的强化传热、传质效果。
|
| 关 键 词： | 场协同 超导磁场 磁热对流 传热传质强化 |
| 文章编号： | 0253-231X(2004)03-0460-03 |
| 修稿时间： | 2003年12月15 |
HEAT MASS TRANSFER ENHANCEMENT BY MAGNETO-THERMAL FIELD SYNERGY EFFECTS |
| |
| LU Shu-Shen,YANG Mo,HUA Ben Sun Yat-Sen University Guangzhou ,China University of Shanghai for Science and Technology,Shanghai ,China South China University of Technology,Guangzhou ,China.HEAT MASS TRANSFER ENHANCEMENT BY MAGNETO-THERMAL FIELD SYNERGY EFFECTS[J].Journal of Engineering Thermophysics,2004,25(3):460-462. |
| |
| Authors: | LU Shu-Shen YANG Mo HUA Ben Sun Yat-Sen University Guangzhou China University of Shanghai for Science and Technology Shanghai China South China University of Technology Guangzhou China |
| |
| Institution: | LU Shu-Shen,YANG Mo,HUA Ben Sun Yat-Sen University Guangzhou 510275,China University of Shanghai for Science and Technology,Shanghai 200093,China South China University of Technology,Guangzhou 510641,China |
| |
| Abstract: | Effect of gradient magnetic field on forced convection of air was numerically simulated
with transient 3-D Navier-Stokes and energy equations to verify the field synergy mechanism of the
magneto-thermal wind in a pipe for the length ratios of 20, 30, 62 and 100, with diameter ratio, N,
diameter of an electric coil versus that of the pipe, from 2 to 200. It was found that there exists a
best diameter ratio to redistribute the velocity and temperature layer and to maximize air flow rate
and heat transfer for the Channel with fixed length, as a function of the most efficient combination of
magnetizing force with magnetic susceptibility distribution affected by temperature. |
| |
| Keywords: | field synergy super magnetic field magneto-thermal convection heat mass transfer enhancement |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
