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G-equations in the modeling of turbulent flame speeds

Yifeng Yu


Predicting turbulent flame speed ($s_T$) is a fundamental problem in turbulent combustion theory. Several simplified models have been proposed to study $s_T$. The G-equation (A Hamilton-Jacobi level set equation) is a very popular model in turbulent combustion. Two important projects are (1) establish the theoretical existence of $s_T$ and (2) determine the dependence of turbulent flame speeds on the turbulence intensity (think of the relation between the spreading velocity of wild fire and strength of the wind). In this talk, I will present some theoretical results under the G-equation model. These are joint works with Jack Xin.

Tuesday, October 23, 2012
11:00AM AP&M 2402