Wall heat flux in the hypersonic boundary layer over the windward side of a lifting body
Peng-Jun-Yi Zhang, Nansheng Liu, Zhen‐Hua Wan, Dejun Sun, Xi‐Yun Lu, Jianqiang Chen, Siwei Dong
Abstract
We conduct comprehensive investigations by direct numerical simulations on the wall heat flux (WHF) in the hypersonic boundary layer over the windward side of a lifting body, which is affected by non-canonical effects, such as the wall curvature and pressure gradient. Based on the framework of conditional analysis, the generation mechanism of extreme WHF events is illustrated in two perspectives: identifying the coherent structures and quantitatively characterizing energy transport. We explore quite different features of WHF in the central and side regions of the lifting body.
Topics & Concepts
Boundary layerHeat fluxHypersonic speedMechanicsFlux (metallurgy)Aerospace engineeringMaterials scienceAtmospheric sciencesPhysicsHeat transferEngineeringMetallurgyFluid Dynamics and Turbulent FlowsParticle Dynamics in Fluid FlowsCombustion and flame dynamics