On the inverse Magnus effect for flow past a rotating cylinder

Abstract

Citation: B John et al. "On the inverse Magnus effect for flow past a rotatingAbstract. Flow past a rotating cylinder has been investigated using the direct simulation Monte Carlo method. The study focuses on the occurrence of the inverse Magnus effect under subsonic flow conditions. In particular, the variations in the coefficients of lift and drag have been investigated as a function of the Knudsen and Reynolds numbers. Additionally, a temperature sensitivity study has been carried out to assess the influence of the wall temperature on the computed aerodynamic coefficients. It has been found that both the Reynolds number and the cylinder wall temperature significantly affect the drag as well as the onset of lift inversion in the transition flow regime.

Tool tilt angle induced variation of shoulder-workpiece contact condition in friction stir welding

“…It is similar with the rotating cylindrical body moving in viscous fluid. In fluid mechanics, a rotating cylindrical body moving in viscous fluid is subjected to the resistance, and the direction of resistance is consistent with the fluid flow direction [15, 16]. Thus, the material on the interface between shoulder and workpiece is subjected to resistance (N) parallel to the material flow direction and contrary to the welding direction, as shown in Figure 1.…”