Abstract
In this paper, we consider the compressible Navier–Stokes equations without heat conductivity in \({\mathbb {R}}^{3}.\) The global existence and uniqueness of strong solutions are established when the initial value towards its equilibrium is sufficiently small in \(H^{2}({\mathbb {R}}^{3}).\) The key uniform bound of entropy is obtained, even though the entropy is non-dissipative due to the absence of heat conductivity. Moreover, the time decay rates of global solutions are also given.
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Acknowledgements
W.L. Li, Y.H. Wang and L. Yao are supported by the Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province of China (Grant No. 2019JC-26) and National Natural Science Foundation of China #11931013. W.J. Wang is supported by the National Natural Science Foundation of China #11871341,12071152.
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Li, W., Wang, W., Wang, Y. et al. Decay Rates for Strong Solutions to the Compressible Navier–Stokes Equations without Heat Conductivity. J. Math. Fluid Mech. 23, 61 (2021). https://doi.org/10.1007/s00021-021-00590-2
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DOI: https://doi.org/10.1007/s00021-021-00590-2