The mechanism of breakdown in laminar-turbulent transition of a supersonic boundary layer on a flat plate-temporal mode
作者： Zhangfeng HUANG
DOI: 10.1360/142005-19
关键词: Laminar flow 、 Boundary layer 、 Turbulence 、 Classical mechanics 、 Transition point 、 Boundary layer thickness 、 Blasius boundary layer 、 Mach number 、 Laminar-turbulent transition 、 Materials science 、 Mechanics
摘要: Temporal mode direction numerical simulation has been done for the transition of a supersonic boundary layer on flat plate with Mach number 4.5. Analysis result showed that during breakdown process in laminar-turbulent transition, mechanism causing mean flow profile to evolve swiftly from laminar turbulent was modification by disturbances, when they became larger, led remarkable change its stability characteristics. Though most unstable T-S wave second flow, first waves played key role transition.
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