This article is intended as a brief review of the dynamics of the turbulent boundary layer on a smooth flat wall. The emphasis is on physical arguments, and the contents offer the minimum ground that an advanced graduate student (who has some familiarity with the turbulence problem. but not ...
Turbulent flow phenomena and boundary layer transition at the circular arc leading edge of an axial compressor stator blade 来自 Semantic Scholar 喜欢 0 阅读量: 53 作者: S Perkins 摘要: As fuel prices rise and environmental awareness becomes an increasingly important topic,the efficiency of engines...
14 The Planetary Boundary Layer (PBL) is the lowermost region of troposphere and endowed with turbulent 15 characteristics, which can have mechanical and/or thermodynamic origins. Such behavior gives to this layer 16 great importance, mainly in studies about pollutant dispersion and weather forecasting...
a記錄各項零附件確認是否符合要求 Records each zero appendix to confirm whether conforms to the requirement[translate] aA turbulent boundary layer was simulated upstream of the test model(s) 一块动荡界面层被模仿了逆流测试模型(s)[translate]
The wall is aerodynamically smooth for a turbulent boundary layer if the roughness elements are so small as to be buried in the laminar sublayer. Pressure gradients, Reynolds number, or roughness does not affect the constants of proportionality. The assumption of a constant outer viscosity has ...
Stratford's method of computing the development of a turbulent boundary layer in a strong adverse pressure gradient, based on division of the layer into an inner equilibrium layer and an outer layer of almost constant total-head, is simple and is based on current knowledge of the properties of...
A new model for the cross spectrum and wavenumber-frequency spectrum of turbulent pressure fluctuations in a boundary layer A model is developed for the statistical characteristics of the turbulent pressure field in a boundary layer. It is shown that the coherence scales are lim... A. V. Smol...
Scaling of the turbulent/non-turbulent interface in boundary layers Scaling of the interface that demarcates a turbulent boundary layer from the non-turbulent free stream is sought using theoretical reasoning and experiment... C Kapil,P Jimmy,M Ivan - 《Journal of Fluid Mechanics》 被引量: 27发...
The turbulent/non-turbulent interface (TNTI) in an adversepressure gradient(APG,β= 1.45)turbulent boundary layer(TBL) is explored here by using direct numerical simulation (DNS) data;βis the Clauserpressure gradientparameter. For comparison, the DNS data for a zeropressure gradient(ZPG) TBL ...
Structure of the Turbulent Boundary Layer 来自 ResearchGate 喜欢 0 阅读量: 141 作者: Leslie S. G. Kovasznay 摘要: The turbulent boundary layer can be subdivided into four distinct regions, sublayer, turbulent wall layer, outer region, and superlayer. Each one of these regions is briefly ...