Eddy viscosity in quiescent and coflowing axisymmetric jets

A finite-difference analysis of turbulent, axisymmetric, buoyant jets and plumes

“…The Proceedings of the 1972 Lang ley Conference [8] contain a reasonably current study of presently known models and methods for the baseline case of the turbulent non-buoyant jet in coflowing ambients. Other references, all dealing with non-buoyant jet calculations, are [18,19,20]. Trent and Welty [21,22] have presented a finite-difference method restricted to vertical plume flows.…”

“…Âlthougih the need for jet and plume predictions which account for buoyancy, cross-flow, and surface interaction effects is clear, it also appears desirable to consider the merits of several turbulence models for the "base-line" case of the heated nonbuoyant (Fr^=" ®), axisymmetric, turbulent jet discharging into a quiescent or co-flowing stream before considering additional complicating effects. The proceedings of the Langley Conference [8] contain a reasonably current study of pres ently known models and methods applicable to this "base-line" flow.Other related publications are[18][19][20]. One of the best performers at the conference was the ke2 model proposed by Launder et al[62].…”