Author:
Yang Ye,Liu Nan,Shao Weiguang,He Qiyang,Yin Haojie
Abstract
Abstract
Liquid holdup is an important indicator to evaluate fuel efficiency during high-speed refueling. This paper carried out a numerical study on the fluid flow as refueling a fuel tank based on the volume-of-fluid method in the commercial software FLUENT, and the effects of inlet velocity, injection angle, nozzle diameter, and the shape of the tank on impact phenome-non were examined and the corresponding relationships between these factors and the liquid holdup were found by a series of single-variable numerical experiments. The results indicate that: a smaller impact angle (30°-60°), lower inlet velocity (2.5-10 m/s), and larger nozzle diameter (36-40 mm) could result in a higher liquid holdup, and a tank with a square cross-section presents higher and more stable liquid holdup than that of a racetrack-like one. Besides, the effect due to the tank shape is greater than those of the inlet velocity, injection angle, and then the nozzle diameter. This work could be helpful for the design and control of a high-speed refueling equipment.