摘要
针对目前微通道气冷器流量分配不均的问题,利用FLUENT软件对微通道气冷器流动特性进行数值模拟,并采用正交试验法,优化其结构参数。模拟结果表明,兼顾总的流量分配不均度和进出口压降两个指标,在研究参数范围内,最优组合为组合深度0.4,扁管长度200 mm,扁管排数8,扁管间距9.0 mm,微通道孔径0.6 mm,微通道孔数9。将数学统计方法与数值模拟相结合,为换热器优化结构的研究提供一种新的途径。
With respect to the problem that the flow in micro-channel gas cooler is not well-distributed, the flow condition in microchannel gas cooler is numerically simulated so as to optimize the structural parameters with orthogonal experiment design method and by using FLUENT. It was shown from the simulation results that if both distribution of the flow and pressure drop at inlet and outlet are taken into account, within the parameter scope mentioned in this article, the optimization should be that the combination depth is 0.4, the length of flat tube is 200 mm, the row of flat tube is 8, the pitch of flat tube is 9.0 mm, the aperture of micro-channel is 0.6 mm and the number of micro-channel is 9. The combination of mathematical method and numerical simulation provides one new route to study the optimum structure of heat exchanger.
出处
《化工设备与管道》
CAS
2015年第2期38-43,共6页
Process Equipment & Piping
基金
国家自然科学基金项目(NO.51376163
NO 51476147)
关键词
微通道
正交试验设计
流量分配不均度
压降
micro-channel
orthogonal experiment design
flow maldistribution
pressure drop
