Abstract The present work studies the effects of physical parameter characterizing laminar flow regime, namely Strouhal number, on evolution unsteady dynamic boundary-layer developed along a wedge surface. Similarity method is used to transform momentum equation dimensionless form. Using superposition between diffusion and convective flows solutions, an ad hoc velocity profile formula proposed....

This paper describes a numerical investigation of the acoustic resonance occurring at specific flow speeds when a long two-dimensional rectangular plate is placed on the centre-line of a duct. The flowMach number is sufficiently small that the flow and acoustic fields can be modelled separately; however, the effect of the acoustic field in modifying the flow field is accounted for and, in turn,...

Ax, A = amplitude of stroke amplitude in x direction, m, and orientation angle, deg CL, CL = lift coefficient and its average over flapping cycles CD, CD = drag coefficient and its average over flapping cycles CPW, CPW = input power coefficient and its average over flapping cycles c, h = chord and thickness of the plate, m; c is chosen as characteristic length Re = Uc v , Reynolds number, v is ...

the flow characteristics around an elliptic cylinder with an axis ratio of ar=2 located near a flat plate were investigated experimentally. the elliptic cylinder was located on the inside and outside a turbulent boundary layer region whose thickness (δ) is 0.38b. the reynolds numbers based on the height of the cylinder cross-section were 15000 and 30000. measurements of mean velocity and turbul...