流体结构相互作用中的热效应
Thermal effects in fluid structure interactions
AI总结:
本文研究了流体结构相互作用中的热效应,通过变分方法和两步最小化方案,证明了弱解的存在性,并考虑了从绝缘到超导性的传热定律。
摘要:
在本文中,我们考虑了两种不同的热传导流体,每种流体均通过不可压缩纳维-斯特克尔斯-傅里叶系统建模,两者由非线性弹性Koiter壳体分隔开。壳体的运动改变了两个分离流体的定义域。在此设定下,我们展示了弱解的存在性。壳体的热容量由能量方式给出。这允许考虑传热定律,从绝缘到超导性。我们采用变分方法研究流体-结构相互作用。为了包含温度,采用了一种新的两步最小化方案来产生近似解。弱解在能量上是闭合的,并且包含严格正的温度。
英文摘要:
In this article we consider two different heat conducting fluids each modelled by the incompressible Navier-Stokes-Fourier system separated by a non-linear elastic Koiter shell. The motion of the shell changes the domain of definition of the two separated fluids. For this setting we show the existence of a weak solution. The heat capacity of the shell is given energetically. It allows to consider transmission laws ranging from insulation to superconductivity.We follow a variational approach for fluid-structure interactions. To include temperature a novel two step minimization scheme is used to produce an approximation. The weak solutions are energetically closed and include a strictly positive temperature.
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