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HIGH-SPEED TRAIN GOING THROUGH TUNNEL AERODYNAMICS CHARACTER MODEL EXPERIMENT ANALYSIS

Jianjun Luo

Open publisher page 1 citations

Abstract

When high-speed train going through tunnel,a series of aerodynamics effect was created,including pressure variation in carriage and noises at tunnel exit,which are harm to passengers and environment.Building tunnel hood is efficient method for solving these problems.In this paper,with model experiment,the function between impulsive wave and pressure grads and train speed were analyzed,the length effect of tunnel hood is compared,the relatively optimum tunnel hood length was fornd.

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What this paper is about

When high-speed train going through tunnel,a series of aerodynamics effect was created,including pressure variation in carriage and noises at tunnel exit,which are harm to passengers and environment.Building tunnel hood is efficient method for solving these problems.In this paper,with model experiment,the function between impulsive wave and pressure grads and train speed were analyzed,the length effect of tunnel hood is compared,the relatively optimum tunnel hood length was fornd.

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Available abstract

When high-speed train going through tunnel,a series of aerodynamics effect was created,including pressure variation in carriage and noises at tunnel exit,which are harm to passengers and environment.Building tunnel hood is efficient method for solving these problems.In this paper,with model experiment,the function between impulsive wave and pressure grads and train speed were analyzed,the length effect of tunnel hood is compared,the relatively optimum tunnel hood length was fornd.

Key concepts: Aerodynamics, High speed train, Pressure wave, Engineering, Railway tunnel, Wind tunnel, Structural engineering, Simulation

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