Reynolds number effect on compressible cylindrical cavity flow

Effect of Reynolds Number in the Turbulent-flow Range

Prediction of Very High Reynolds Number Compressible Skin Friction

Flat plate skin friction calculations over a range of Mach numbers from 0.4 to 3.5 at Reynolds numbers from 16 million to 492 million using a Navier Stokes method with advanced turbulence modeling are compared with incompressible skin friction coefficient correlations. The semi-empirical correlation theories of van Driest; Cope; Winkler and Cha; and Sommer and Short T’ are used to transform the...

A Hybrid Method for Low Reynolds Number Flow Past anAsymmetric Cylindrical

Low Reynolds number uid ow past a cylindrical body of arbitrary shape in an unbounded, two-dimensional domain is a singular perturbation problem involving an innnite logarithmic expansion in the small parameter ", representing the Reynolds number. We apply a hybrid asymptotic-numerical method to compute the drag coeecient, C D , and lift coeecient, C L , to within all logarithmic terms. The hyb...

Linearized pipe flow to Reynolds number 107

A Fourier–Chebyshev Petrov–Galerkin spectral method is described for high-accuracy computation of linearized dynamics for flow in an infinite circular pipe. Our code is unusual in being based on solenoidal velocity variables and in being written in MATLAB. Systematic studies are presented of the dependence of eigenvalues, transient growth factors, and other quantities on the axial and azimuthal...

Reynolds number effects on flow/acoustic mechanisms in spherical windscreens.

There is a practical need to fully understand the mechanisms involved in the flow/pressure fluctuations around a screened microphone. A stream of uniform flow with low-frequency turbulence encountering a rigid, impermeable spherical windscreen is considered in this study. Pressure distributions on the surface of the sphere are determined by the flow structure. Pressure fluctuations at the cente...