Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2000.04b
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- Pages.605-610
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- 2000
Experimental Studies on Various Ground Simulations for a Wind Tunnel Test of Road Vehicles
지상운송체의 풍동시험을 위한 지면재현의 연구
Abstract
A series of wind tunnel test were conducted on Korean high speed train model to understand the flow physics around the vehicle related to the aerodynamic drag. For the wind tunnel test on high-speed ground vehicle, a moving ground simulation is necessary to predict the aerodynamic drag accurately. So, the models were tested in three wind tunnels with various ground simulation facility including moving belt ground plane system and tangential blowing system. The test results including measured aerodynamic drag and flow visualization showed that a tangential blowing method can be an alternative ground simulation method in short time using conventional wind tunnel.
Keywords
- High speed trains;
- ground simulation;
- Reynolds number effect;
- moving ground;
- tangential blowing;
- aerodynamic drag;
- drag coefficients;
- wind tunnel test