Colloquium

Speaker: Prof. Yu-Yu Liu (National Cheng Kung University)
Title: Turbulent Flame Speeds in Level Set Models and Unsteady Flows
Time: 2014-11-27 (Thu.)  15:00 - 16:00
Place: Auditorium, 6 Floor, Institute of Mathematics (NTU Campus)
Abstract: G-equation is a popular model in turbulent combustion which describes the propagation of the thin flame front by a advection term and a laminar term. As the planar front corrugates and propagates in time, we study the asymptotic propagation speed called the turbulent flame speed (s_T). For the advection term, we study the growth rate of s_T when the flow intensity is getting larger. For the laminar term, besides the motion in normal direction, we also add the curvature/strain term to see how the growth rate of s_T is bended/quenched. In this talk, I will summarize the previous analytic works on the steady flows, and then I will update some recent numerical works on the unsteady flows.
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