Sensitivity analysis of the vane length and passage width for a radial type swirler employed in a tr

• 作 者: Foad Vashahi Shahnaz Rezaei Reza Alidoost Dafsari Jeekeun Lee
• 机 构: Fluid Engineering Laboratory, Department of Mechanical System Engineering, Graduate School of Chonbu
• 出 处: 力学快报（英文）
• 发表日期: 2019年6期
• 关键词: Triple swirler Swirler design Radial vane length Passage width Reynolds averaged

The design of axial or radial swirlers typically govs a number of geometrical parameters that are determined by the desired flow field.In the meantime,the number of unknown parameters increases with the number of concentrically mounted swirlers.The available literature is nonetheless limited,and designers are obligated to increase the number of initial assumptions.In this article,three kinds of triple swirlers are employed and simulations are performed to determine the effect of each parameter on the swirler performance.Based on the correlation provided,over-lengthening the radial vane length could result in significant changes in the flow field from the jet-like patt to a wide swirl-jet angle due to the Coanda effect.Passage width should also have the potential to alter the swirl-jet angle and velocity field at the exit of the swirler.