Methods of Vanishing Viscosity for Nonlinear ... - ACMAC
Methods of Vanishing Viscosity for Nonlinear ... - ACMAC
Methods of Vanishing Viscosity for Nonlinear ... - ACMAC
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Navier-Stokes Equations =⇒ Euler Equations<br />
Theorem (Chen-Perepelitsa: CPAM 2010)<br />
Let the initial functions (ρ 0 , u 0 ) satisfy the finite-energy<br />
conditions.<br />
Let (ρ ε , m ε ), m ε = ρ ε u ε , be the solution <strong>of</strong> the Cauchy problem<br />
<strong>for</strong> the Navier-Stokes equations <strong>for</strong> each fixed ε > 0.<br />
=⇒ When ε → 0, there exists a subsequence <strong>of</strong> (ρ ε , m ε ) that<br />
converges strongly almost everywhere to a finite-energy<br />
entropy solution (ρ, m) to the Cauchy problem <strong>for</strong><br />
the isentropic Euler equations <strong>for</strong> any γ > 1.<br />
Gui-Qiang Chen (Ox<strong>for</strong>d) <strong>Vanishing</strong> <strong>Viscosity</strong>/Conservation Laws June 20–24, 2011 20 / 40