Variable‐viscosity flow in heated and cooled channels with internal viscous dissipation
Variable‐viscosity flow in heated and cooled channels with internal viscous dissipation
复制标题
具有内部粘性耗散的加热和冷却通道中的变粘性流动
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
T. Sun
中科院分区：
文献类型：
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作者：
T. Sun
本文给出了一个粘性很大的牛顿流体在突然加热或冷却的通道中流动的相似解。假设粘度纯粹是温度的指数函数，并且热生成非常大。无对称近似是通道壁处的下游粘度与上游流动中的下游粘度相差一个数量级。该解决方案可用于检查数值模拟的结果，无论是热塑性或热固性树脂注射到冷却或加热模具，分别。
A similarity solution is given to a very viscous Newtonian fluidflowing in a channel which is suddenly heated or cooled. The viscosity is assumed purely an exponential function of temperature and heat generation is very large. The asymtoptic approximation is that the downstream viscosity at the channel wall differs by an order of magnitude from that in the upstream flow. This solution can be used to check results of numerical simulation in the injection of either a thermoplastic or a thermoset resin into a cooled or heated mold, respectively.