Aerodynamic characteristics of leakage-induced pressure waves in an evacuated tube transportation system
Abstract
This study experimentally investigated the aerodynamic characteristics of pressure waves induced by sudden air leakage in a vacuum tube by simulating an evacuated tube transportation system failure. Using a scaled-down test section, leakage scenarios with various orifice diameters and initial pressures were analyzed. The flow field was classified into two distinct regimes based on the interaction between the underexpanded jet and the tube wall: supersonic core impingement (SCI) and decayed jet impingement (DJI). A dimensionless geometric criterion, 0.62
Fields of Study & Subjects
Wind and Air Flow Studies
Combustion and Detonation Processes
Computational Fluid Dynamics and Aerodynamics
Publication details
- Journal / source
- Physics of Fluids
- Publisher
- AIP Publishing
- Volume
- 38
- Issue
- 6
- Publication date
- 1 June 2026
- Language
- EN