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分析与微分方程研讨会

Smooth sonic-supersonic flows in critical nozzles

Speaker

王春朋 , 吉林大学

Time

22 Nov, 16:00 - 16:45

Abstract

This talk concerns the global existence of smooth sonic-supersonic potential flows in a two-dimensional expanding nozzle with the critical geometry at the inlet. The flow is governed by a quasilinear non-strictly hyperbolic equation with degeneracy at the inlet. An interesting phenomena is that the existence of such sonic-supersonic flows depends on the height of the inlet.