Temperature Profile Development in Turbulent Mixing of Coolant Jets With a Confined Hot Cross Flow

Abstract

The mixing of coolant air jets with the hot gas exiting the primary zone is of major importance to the combustor exit temperature profile. Geometry and momentum flux ratios are the dominant parameters. A theoretical and experimental study of single as well as opposite wall jet injection into a hot cross flow reveals the applicability and limitations of existing correlations. Modified correlations are presented for opposite wall injection with jets of different momentum flux ratios. The advantages in applying field methods for describing the flow are discussed.

Numerical Predictions and Measurements of Discharge Coefficients in Labyrinth Seals

“…This is probably due to the high pressure gradients. In other applications such as combustion chamber flows with low pressure gradients [20] the QUICK-algorithm could be successfully utilized.…”

Flow characteristics in the liner of a reverse-flow gas turbine combustor

“…The complex geometry of reverse-ow gas turbine combustors limits the access of conventional instruments for the measurement of ow parameters whereas nonintrusive instruments are highly expensive and require speci c skill and training for their use. Therefore, many investigators [3,[7][8][9][10][11] have adopted a simple methodology of subcomponent investigation. The present study has been carried out in a plane model, developed [6] from the prototype design of an annular reverse-ow combustor in rectilinear form, having in nite radius of curvature with other design features remaining nearly unchanged.…”