Title
Global Entropy Solutions to the Gas Flow in General Nozzle.
Abstract
We are concerned with the global existence of entropy solutions for the compressible Euler equations describing the gas flow in a nozzle with general cross-sectional area, for both isentropic and isothermal fluids. New viscosities are delicately designed to obtain the uniform bound of approximate solutions. The vanishing viscosity method and compensated compactness framework are used to prove the convergence of approximate solutions. Moreover, the entropy solutions for both cases are uniformly bounded independent of time. No smallness condition is assumed on initial data. The techniques developed here can be applied to compressible Euler equations with general source terms.
Year
DOI
Venue
2019
10.1137/19M1249436
SIAM JOURNAL ON MATHEMATICAL ANALYSIS
Keywords
Field
DocType
isentropic gas flow,isothermal gas flow,compensated compactness,uniform estimate,independent of time
Convergence (routing),Compressibility,Isentropic process,Mathematical analysis,Uniform boundedness,Compact space,Viscosity,Euler equations,Nozzle,Mathematics
Journal
Volume
Issue
ISSN
51
4
0036-1410
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Wentao Cao100.68
Feimin Huang2117.68
Difan Yuan300.34