The Steady Wake of a Wall-Mounted Rectangular Prism with a Large-Depth-Ratio at Low Reynolds Numbers

The wakes of wall-mounted small (square) and large (long) depth-ratio rectangular prisms are numerically studied at Reynolds numbers 50–250. significantly alters the dominance lateral secondary flow (upwash downwash) in wake due to reattachment leading-edge separated on surfaces prism. This changes topology by varying entrained region changing distribution vorticity. Thus, magnitude vorticity decreases increasing prism depth-ratio. Furthermore, length recirculation orientation near structures altered for larger compared square Drag lift coefficients also affected change pressure distributions rear face surface friction force. behavior is consistently observed entire range considered here. size scaled with Re1/2, whereas drag coefficient Re?0.3.