期刊
SIAM JOURNAL ON MATHEMATICAL ANALYSIS
卷 37, 期 1, 页码 60-82出版社
SIAM PUBLICATIONS
DOI: 10.1137/S0036141003430044
关键词
nonlinear parabolic equation; degenerate parabolic equation; viscosity solutions; non-Newtonian flows; complex. uids; concentrated suspensions
The mathematical properties of a nonlinear parabolic equation arising in the modelling of concentrated suspension flows are investigated. The peculiarity of this equation is that it may degenerate into a hyperbolic equation ( in fact, a linear advection equation). Depending on the initial data, at least two situations can be encountered: the equation may have a unique solution in a convenient class, or it may have infinitely many solutions. The present article is the theoretical side of a joint project with rheologists, aiming at better understanding the flows of complex fluids.
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