Positivity of temperature for some non-isothermal fluid models
Positivity of temperature for some non-isothermal fluid models
复制标题
某些非等温流体模型的温度正值
DOI:
10.1016/j.jde.2022.08.025
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发表时间:
2022
影响因子:
2.4
通讯作者:
Tarfulea, Andrei
中科院分区:
文献类型:
--
作者:
Lai, Ning-An;Liu, Chun;Tarfulea, Andrei
We establish three partial differential equation models describing the thermodynamic behavior of a fluid by combining the energetic variational approach, appropriate constitutive relations, and classical thermodynamic laws. By using an explicit algebraic approach, we show a maximum/minimum principle for some auxiliary variables involving the absolute temperatureθand densityρunder some special conditions, which then yields the positivity of the temperature. This important fact implies the thermodynamic consistency for our models.
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DOI:
10.1093/acprof:oso/9780198705413.003.0008
发表时间:
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