摘要
随着工业技术的迅速发展,多孔介质的强化冷却问题已成为工程上及热交换领域里的热门课题。对于多孔介质性能的研究,不仅要关注其散热性能等宏观方面的作用,同时也要考虑其内部流场作用等微观方面的影响。可建立流体力学的数学模型以模拟多孔介质的内部流场,主要从流体力学和热力学的角度对多孔介质的内部流场进行模拟。该方法在较简单模型下的优势并不明显,但在复杂的多孔介质模型中,可简化模型及边界条件的设置,减少建模的时间。
Along with the development of the energy industry rapidly, a quickly efficient cooling technology of porous media has become a hot topic in the fields of the engineering heat exchange. In the performance research of porous media, we should not only pay attention to the capability of heat dissipation in macroscopic view, but also the effect inside of the flow field in microcosmic view. The numerical simulation of the flow distribution in porous media is not too much difficulty now, the method of hydrodynamics and thermal simulation instead of flow field in porous media is discussed mainly in this paper. It is not an advantageous method in a simple model, but it can simplify the model in the complicated condition of the porous media and the boundary condition, and save much time in modeling.
出处
《电站辅机》
2012年第2期9-12,共4页
Power Station Auxiliary Equipment
关键词
多孔介质
流场
计算
热模拟
热交换
数值
模型
方法
porous media
flow field
calculation
thermal simulation heat exchange
value
model
method
