Abstract
ABSTRACTThe vacuum pipeline vehicle system is a novel conceptual system aimed to provide a high-speed public transportation service in the future, featured with a reduced-pressure tube in which pressurised capsules ride on a cushion of air that is driven by a combination of linear induction motors and air compressor. The capsule body has a great influence on the aerodynamic performance of vehicles. This work involves numerical simulations based on finite volume method to study the optimisation method for the parameter design of the vehicle body. The results show that the aerodynamic resistance of the optimised vehicle is further reduced, the drag reduction rate reaches 5.52%, and the speed of the Kantrowitz limit phenomenon is delayed from 760 to 860 km/h. The drag reduction effect is obvious.
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