Vortexing Characteristics During Draining from Cylindrical Fuel Tanks with Inclined Bottom Surface
During draining of liquid from a circular tank through an axisymmetrically placed drain port, a vortex with an air core forms. The vortex extends to the bottom port, reducing the effective cross sectional area of the drain outlet and consequently the flow rate. This phenomenon has practical relevance in the fuel feed system in space vehicles and liquid rockets. In the present study, the flow field in circular tanks with different inclined angle of bottom surface is studied to investigate drain flow characteristics and to see how the vortex pattern changes with inclined angle Flow visualization studies using PTV to determine the flow patterns in a circular tank are carried out after imparting rotation to the liquid in the tank. Experiment results show the inclined angle equal to and greater than 20 degree, the air core is completely suppressed.
vortexing PIV air core suppression of air core inclined plate
Eun Suhan Jea Jongju Gao Zhefeng Chang Hyunsohn
School of Mechanical Engineering, Kyungpook National University, 702-701 Daegu, Korea
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
215-218
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）