Abstract
In the study, the flow pattern due to the interaction between a high-speed train and the tunnel at the model scale was analyzed. Six different tunnel entry geometries were used variably for a single train speed. The most important issues as a condition of comfort in high speed trains are noise and vibration. In particular, flow-induced noise is triggered by pressure changes in the flow. For each geometry, the pressure changes at the tunnel entrance and at the tunnel exit are plotted with depending on time. As a result, the least amount of pressure change was found in the tunnel entrance model with openings in the side walls.
Keywords
Train
Flow (mathematics)
High speed train
Noise (video)
Mechanics
Engineering
Simulation
Structural engineering
Physics
Computer science
Subject Areas
Aerodynamics and Fluid Dynamics Research
·Aerospace Engineering ·Physical Sciences
Evacuation and Crowd Dynamics
·Ocean Engineering ·Physical Sciences
Railway Engineering and Dynamics
·Mechanical Engineering ·Physical Sciences
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