%0 Journal Article
%T Simulation of viscous flow around a circular cylinder near a moving ground
%A Bimbato
%A Alex Mendon£¿a
%A Pereira
%A Luiz Antonio Alcantara
%A Hirata
%A Miguel Hiroo
%J Journal of the Brazilian Society of Mechanical Sciences and Engineering
%D 2009
%I Scientific Electronic Library Online
%R 10.1590/S1678-58782009000300010
%X the objective of this paper is to study the vortex shedding from a circular cylinder near a moving ground; this is done using the vortex method. a moving ground has been widely used in the field of experimental vehicle aerodynamics, especially of high-performance racing cars, to properly consider the ground effect on the vehicles aerodynamic. in experimental work as well as in numerical simulations, the ground plane develops a boundary layer that interferes with the body viscous wake, leading to not so precise results. a ground moving with the incoming flow velocity, however, does not allow the development of a boundary layer. the results of our numerical simulations show that the critical drag behavior is directly related to a global change in the wake structure of the cylinder in the ground effect. comparisons with experimental data are encouraging.
%K moving ground
%K near wake structure
%K aerodynamic loads
%K vortex method.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1678-58782009000300010&lng=en&nrm=iso&tlng=en