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Summary & Details

The Impact of Speed and Blockage Ratio on the Aerodynamics of the Evacuated Tube Transportation System

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Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20225268

Paper/Info type: Proceedings (Spring)

No.61-22

Pages: 1-5(Total 5 p)

Date of publication: May 2022

Publisher: JSAE

Language: English

Event: 2022 JSAE Annual Congress (Spring)

Detailed Information

Author(E)	1) Zhiwei Zhou, 2) Chao Xia, 3) Xizhuang Shan, 4) Zhigang Yang
Affiliation(E)	1) Tongji University, 2) Tongji University, 3) Tongji University, 4) Tongji University/Beijing Aeronautical Science and Technology Research Institute
Abstract(E)	The aerodynamic characteristics of the evacuated tube transportation system were investigated based on the Reynolds-averaged Navier-Stokes k-w shear-stress transport simulation model in this study. Comparing the two tube train systems with different blockage ratios, i.e., 0.09 and 0.25, the impact of the isentropic limit and Kantrowitz limit on the aerodynamics was explored. Three distinct flow structures were found, which correspond to three speed ranges divided by the critical Mach number of the two limits. The drag of a tube train shows different aerodynamic features under the three speed ranges.

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