Study on the Influence of Elevator Running Speed on the Aerodynamic and Flow Laws of Carriage and Fluid Field
In order to achieve the smooth operation of high-speed lift car,reduce the piston effect on the air flow in the shaft,through the establishment of the lift shaft-car model,analysis of the speed of the car aerodynamic force,flow field effects:when a car is stationary,the other car is approaching from far away,in the uniform phase,the running car near the flow of air velocity increases,and along the vertical direction of the aerodynamic resistance gradually increases,while the stationary car aerodynamic resistance is increasing,and the air flow velocity in the vertical direction is increasing,while the air flow in the vertical direction is increasing.The aerodynamic resistance of the stationary car is almost 0;when the two cars move in opposite directions with the same speed,the front of the running car is positive pressure,and the flow field on both sides of the car and the back of the running car is negative pressure.
high-speed liftoperation speedpneumatic resistanceflow field characteristics
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