NUMERICAL ANALYSIS OF THE MECHANISM OF DECREASING THE FRONTAL RESISTANCE
OF THE ROLLING WHEEL BY GENERATING A CIRCULAR VORTEX IN FRONT OF IT

Yu. V. Zhukova,a} S. A. Isaev,b}
Yu. M. Lipnitskii,c} and A. E. Usachovd}

UDC 532.517.2

In solving nonstationary Navier-Stokes equations by 
the factorized finite-volume method, we analyze the vortex mechanism 
of decreasing the drag of a rolling circular cylinder by generating 
a vortex in front of it due to the rotation of a small-diameter cylinder.

a}A. V. Luikov Heat and Mass Transfer Institute, National Academy 
of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus; 
b}Saint Petersburg State Civil Aircraft University, St. Petersburg, Russia; 
c}Central Scientific-Research Institute of Machine Building, Korolev, Russia; 
d}State Research Center TsAGI, Moscow, Russia. Translated from Inzhenerno-
Fizicheskii Zhurnal, Vol. 81, No. 3, pp. 475-479, May-June, 2008. 
Original article submitted January 16, 2007.