Wall reflection of a viscous vortex ringThe behavior of a viscous axisymmetric vortex ring being reflected from a wall is investigated. The incompressible Navier-Stokes equations formulated in terms of the vorticity function and vector potential are numerically integrated by implicit finite difference methods. To specify the vector potential at a far boundary from the wall, the existing integral method used so far only for an unbounded domain is modified by a kind of image method. The trajectory of the vortex ring calcualted as a result closely resembles that observable from the experiment.
Document ID
19860035212
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sa, J. Y. (Korean Inst. of Science and Technology Seoul (Republic of Korea)., United States)
Chang, K. S. (Korea Advanced Institute of Science and Technology Seoul, Republic of Korea, United States)
Liu, C. H. (NASA Langley Research Center Hampton, VA, United States)