The subject is the theory of flows with friction, and, within that field, particularly the theory of friction layers, or boundary layers. Actual liquids and gaees satisfy the condition of incompressibility rather well if the velocities are not extremely high or, more accurately, if they are ...
Symmetry Methods in Turbulent Boundary Layer Theory/New wake region scaling laws and boundary layer growth The Lie group or symmetry approach developed by Oberlack (see e.g. Oberlack 2001 and references therein) is used to derive new scaling laws for various qua... M Oberlack,G Khujadze -...
The “protruding height theory” suggests that the boundary layer thickness can be increased due to the existence of riblets [77,78] (Fig. 14(b)). The “second vortex group theory” suggests that the function of the vortex can play the role of “rolling bearing”, which can effectively ...
In a recent paper, Stratford has described a turbulent boundary layer with continuously zero wall stress and has developed a theory to describe the flow based on two assumptions. The first is that the flow in the outer part of the layer ... A. A. Townsend - 《Journal of Fluid Mechanics...
theory to both unstable and stable conditions (seeBOUNDARY LAYERS | Convective Boundary Layer,BOUNDARY LAYERS | Stably Stratified Boundary Layer). Observations in the nonneutral surface layer are plentiful, and have been used to confirm Monin–Obukhov similarity theory as an extension of eqns[5a, c...
Winter KG, Gaudet L (1973) Turbulent boundary layer studies at high Reynolds numbers at Mach numbers between 0.2 and 2.8. ARC R&M No. 3712 Schlichting H (1979) Boundary layer theory. McGraw Hill, New York Perry AE, Schofield WH, Joubert PN (1969) Rough-wall turbulent boundary layers. J ...
The 'law of the wall,' familiar from turbulent boundary layer theory, has been extended to turbulent flow along a sharp density interface. The effective gr... G.,T.,Csanady - 《Journal of Geophysical Research》 被引量: 52发表: 1978年 Multiscale Geometry and Scaling of the Turbulent-Non...
Testing: spatially evolving turbulent boundary layer The predictive performance of the LLWM is assessed in a zero-pressure-gradient flat-plate turbulent boundary layer. The simulation ranges from Reθ = 1000–7000, where Reθ is the Reynolds number based on the momentum thickness. The modeled...
Stability of Three-Dimensional Boundary Layers on Swept Wings at Transonic Speeds Linear, compressible, quasi-parallel, spatial stability theory is applied to the boundary layer on the upper surface of an infinite-span transonic swept wing. The stability theory is formulated for a class of standing...
This study presents a predictive theory of ripple formation beneath sea waves. The theory is based on a linear stability analysis of a flat sandy bottom subject to an oscillatory flow. The flow regime in the bottom boundary layer is assumed to be turbulent; hence previous works on the subject...