Influence Of Angle Variation Research Articles

Mean Pressure Distributions on the Vanes and Flow Loss in the Branch in a T Pipe Junction with Different Angles

Mean pressure distributions on the vanes and the flow loss in the branch duct in a T pipe junction with different angles are experimental studied. Pressure coefficient drops gradually along the wall but changes suddenly on the four vanes with angle variation. Angle variation has little influence on the mean pressure distribution on the wall. The influence of angle variation on the pressure of the four vanes is described. The maximum average pressure coefficient on the vanes is at θ=130°.

Research of Flame Stabilization and Mixing Mechanisms for Turbine Inter-vane Burner Based on Jet-vortex Flow

Abstract In order to meet the requirement of flame stabilization and intensify the mixing, a new injection configuration, named double-effect injection configuration, is designed and that is the two secondary injections have been allocated with different functions to achieve the purpose of flame stabilization and intensifying mixing. The effects of the variation of secondary injections on flame stabilization, mixing and combustion performance were studied by using numerical simulation method. The conclusions are that by double-effect injection configuration, a stable recirculation zone can be formed in the cavity to stabilize the combustion flame, and the mixing effect can be intensified; and the temperature distributions at this combustor exit are more symmetric; and the influence of angle variation of secondary jet flow based on double-effect injection configuration is weaker, but it can be seen that model-1 (50° and 45° for two injection angle) has highest combustion efficiency and lowest total pressure losses.