Acta mathematica scientia,Series B ›› 2019, Vol. 39 ›› Issue (2): 420-428.doi: 10.1007/s10473-019-0208-4

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ON INTEGRABILITY UP TO THE BOUNDARY OF THE WEAK SOLUTIONS TO A NON-NEWTONIAN FLUID

Shanshan GUO1, Zhong TAN2   

  1. 1. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China;
    2. School of Mathematical Sciences and Fujian Provincial Key Laboratory on Mathematical Modeling and Scientific Computing, Xiamen University, Xiamen 361005, China
  • Received:2018-02-17 Revised:2018-08-29 Online:2019-04-25 Published:2019-05-06
  • Contact: Zhong TAN E-mail:tan85@xmu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (11271305, 11531010).

Abstract: This work consider boundary integrability of the weak solutions of a non-Newtonian compressible fluids in a bounded domain in dimension three, which has the constitutive equations as

The existence result of weak solutions can be get based on Galerkin approximation. With the linear operator B constructed by BOGOVSKⅡ, we show that the density ρ is square integrable up to the boundary.

Key words: compressible fluid, weak solutions, non-Newtonian fluids, integrability

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