A Navier-Stokes Analysis of Three-Dimensional Negatively Buoyant Jet Injected into a Hot Cross Flow Academic Article uri icon

abstract

  • Three-dimensional numerical computations of negatively buoyant cold jet injected into hot water flowing in a pipe are presented for various hot-to-cold flow rate ratios. A fine nodalization with a newly modified skew upwind differencing scheme is employed. The adoption of this scheme results in a significant reduction of the numerical diffusion errors. Under certain conditions of the jet Froude number, the hot water penetrates upward into the injector, resulting in a recirculatory flow region. Such penetration and recirculation enhance the mixing process, thus helping mitigate the pressurized thermal shock concern. A satisfactory agreement between the numerical temperature predictions with available experimental data is obtained.

author list (cited authors)

  • Hassan, Y. A., & Kim, J. H.

citation count

  • 1

publication date

  • January 1985