TY - JOUR
N2 - Two semi-circular rods set up in V-shape form were used to generate streamwise vortices in a turbulent boundary layer. The vortices, due to induced helical flow, supplement the streamwise momentum of retarded air particles at the body surface with the momentum of the external flow. In this experimental study it was found that vortices are at their most intensity if the Reynolds number of the flow over generator, based on the diameter of rods is within the range I 04-1.5 · I 04 • Several semi-circular rods set up in a tooth line were examined in delaying the separation of the turbulent boundary layer at a convex cylindrical surface. It has been noted that delay of separation is at its most efficient when the height of the generator is equal to at least half of the boundary layer thickness.
L1 - http://journals.pan.pl/Content/124985/PDF/6_MECHANICAL_52_2005_4_Szumowski_Streamwise.pdf
L2 - http://journals.pan.pl/Content/124985
PY - 2005
IS - No 4
EP - 360
KW - vortex
KW - flow separation
A1 - Szumowski, Andrzej
A1 - Wojciechowski, Jan
PB - Polish Academy of Sciences, Committee on Machine Building
VL - vol. 52
T1 - Streamwise vortices induced by semi-circular rods submerged in turbulent boundary layer
DA - 12.11.2022
SP - 363
UR - http://journals.pan.pl/dlibra/publication/edition/124985
T2 - Archive of Mechanical Engineering
ER -