WebThe Reynolds number normal to the body may be written in terms of the Mach number normal to the body as follows: (7.109)Re=Vdν=(aν)Md Using Eqns (2.16) and (2.21)Equation 2.16Equation 2.21, we may approximate the unit Reynolds number, i.e., the Reynolds number per unit diameter, as follows: (7.110)Red≈2.56×107exp(−z7.16)M WebBai H. L, & Alam M. M. 2024 Dependence of square cylinder wake on Reynolds number. Physics of Fluids 30, 015102 . Qi Z.Y., Wang Y.K., Bai H.L., Sha Y. & Li Q. 2024 Effects of micro perturbations on the asymmetric vortices over a blunt-nose slender body at high angles of attack. European Journal of Mechanics ...

The intermediate wake of a body of revolution at high Reynolds numbers …

WebThe high-Reynolds number stratified wake of a slender body is studied using a high-resolution hybrid simulation. The wake generator is a 6:1 prolate spheroid with a tripped boundary layer, the diameter-based body Reynolds number is Re = 𝑈 ∞ 𝐷 / 𝜈 = 10 5 , and the body Froude numbers are Fr = 𝑈 ∞ / 𝑁𝐷 = { 2 , 10 , ∞} . WebThe axisymmetric wake shifts from high- Re to low- Re equilibrium self-similar solutions, which were only observed for axisymmetric wakes of bluff bodies in the past. JFM classification Turbulent Flows: Turbulent boundary layers Turbulent Flows: Turbulence simulation Wakes/Jets: Wakes Type JFM Papers Information maplin usb digital microscope

Vortex shedding in high Reynolds number axisymmetric …

WebFeb 27, 2024 · Abstract:The high-Reynolds-number wake of a slender body with a turbulent boundary layer is investigated using a hybrid simulation. The wake generator is a 6:1 prolate spheroid and the Reynolds number based on the diameter $D$ is $Re = 10^5$. The transition of the unstratified wake to a state of complete WebReynolds number increases the variation in the drag coefficient (based on cross-sectional area) decreases, and over a large range in Reynolds number it is nearly constant. Figure 2. number for smooth circular cylinders and smooth spheres. Figure 3. number = 0.2; (B) 12; (C) 120; (D) 30,000; (E) 500,000. Patterns correspond to the WebAug 6, 2004 · ABSTRACT. In the present work we study the large-scale helical vortex shedding regime in the wake of an axisymmetric body with a blunt trailing edge at high … cross gene la di da di