Abstract
Longitudinal liquid sloshing in partially filled clear-bore tanks causes extensive degradation of tankers braking performance. To reduce the negative effect of longitudinal liquid sloshing on tankers, three kinds of transverse baffles were designed, namely, the conventional baffle, the circular baffle, and the staggered baffle. Each kind of baffle took several forms to investigate the impact of baffle installation angle, the sizes of holes pierced on the baffle, and their arrangement on the antisloshing effect. FLUENT software was used to simulate liquid sloshing in tanks equipped with different kinds of transverse baffles and subject to constant braking deceleration. A time-series analysis of the forces act on tank walls and transverse baffles was carried out. It was drawn that the baffle shape and its installation angle have great impact on the antisloshing effect of baffles. The study on the antisloshing effect of different transverse baffles is of great significance for tank vehicle driving and braking safety, as well as for the design of optimal transverse baffles.
Highlights
Tank vehicles are widely used in the road transportation of liquid cargoes throughout the world
Liquid sloshing in tanks without baffles was simulated first and the maximum sloshing force on wall1 was compared with the result obtained using the quasistatic method to verify the accuracy of the FLUENT simulation settings
It is known that liquid sloshing forces obtained using the quasistatic method are a little smaller than those obtained by FLUENT simulation
Summary
Tank vehicles are widely used in the road transportation of liquid cargoes throughout the world. In China, about 76% of chemical products were delivered by tank trucks, and the total freight load was nearly 1 million tons. Tankers are hugely convenient for transporting liquid cargoes and boosting national economic development. In 2011, 416 tanker accidents occurred in China, causing 643 deaths and costing tens of millions of Yuan. On the basis of the reported highway accidents involving heavy vehicles, it has been suggested that tank trucks were 4.8 times more likely to be involved in rollovers [2]. Due to the particularity of transportation cargoes, most of the liquid release tanker accidents made direct contamination to water, air, and land [3, 4]
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