The boundary value problem for the three-dimensional steady viscous compressible Navier-Stokes/Allen-Cahn (NSAC) system is considered. We establish the existence of a weak solution for the adiabatic index gamma > 2 with the phase function belonging to [-1, 1 ] . Moreover, we give further analysis on the weak solu-tion. More specifically, we prove that the steady NSAC system degenerates into Navier-Stokes system if the phase function is positive (negative) on (Omega) over bar. (c) 2020 Elsevier Inc. All rights reserved.
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Department of Mathematics, College of Mathematics and Physics, Beijing University of Chemical TechnologyDepartment of Mathematics, College of Mathematics and Physics, Beijing University of Chemical Technology
Ya-zhou CHEN
Hakho HONG
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Institute of Mathematics, State Academy of SciencesDepartment of Mathematics, College of Mathematics and Physics, Beijing University of Chemical Technology
Hakho HONG
Xiao-ding SHI
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Department of Mathematics, College of Mathematics and Physics, Beijing University of Chemical TechnologyDepartment of Mathematics, College of Mathematics and Physics, Beijing University of Chemical Technology
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South China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R ChinaSouth China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China
Ding, Shijin
Li, Yinghua
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South China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R ChinaSouth China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China
Li, Yinghua
Tang, Ying
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South China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R ChinaSouth China Normal Univ, Sch Math Sci, Guangzhou 510631, Guangdong, Peoples R China