Near-field structures in three-dimensional spatially-developing wakesThe effects of three-dimensional perturbations on a spatially-developing plane Gaussian wake are studied and quantified using a new numerical code. Results are presented for a elatively simple case since it appears that no 3-D spatially-developing simulations of plane wakes have been performed in the past. The inlet perturbation consists of a 2-D time-periodic forcing plus a spanwise-periodic array of steady streamwise vortices. The distortion of the 2-D vortices caused by the streamwise vortices will be discussed. The vorticity fields are compared to passive scalar fields which simulate the injection of smoke or low heat into the wake.
Document ID
19910061673
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Buell, Jeffrey C. (NASA Ames Research Center Moffett Field, CA, United States)
Mansour, Nagi N. (NASA Ames Research Center Moffett Field, CA, United States)