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EXPERIMENTAL EVALUATION OF VEHICLE DRAG IN LONG TUBES

D E Magnus, Sergio Panunzio, H. Medecki

Open publisher page 1 citations

Abstract

The report describes experimental results for aerodynamic phenomena in high speed tube-vehicle transportation systems. The data is obtained from a scaled facility which is suitable for a broad range of operating conditions and vehicle configurations. Seven vehicle configurations were used to measure vehicle drag force and the histories of static and dynamic pressure. The results correspond to full-scale vehicles approximately 8 to 13 feet in diameter operating in an evacuated tube (p=.0056 atm) 7 miles long. The history of static wall pressure in the far field is analyzed and related to the propagation of disturbances along the tube. Also, the pressure was measured in the region of the near field, and the results compared for various geometries of the vehicle. (Author)

About this research paper

What this paper is about

The report describes experimental results for aerodynamic phenomena in high speed tube-vehicle transportation systems. The data is obtained from a scaled facility which is suitable for a broad range of operating conditions and vehicle configurations. Seven vehicle configurations were used to measure vehicle drag force and the histories of static and dynamic pressure. The results correspond to full-scale vehicles approximately 8 to 13 feet in diameter operating in an evacuated tube (p=.0056 atm) 7 miles long. The history of static wall pressure in the far field is analyzed and related to the propagation of disturbances along the tube. Also, the pressure was measured in the region of the near field, and the results compared for various geometries of the vehicle. (Author)

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Available abstract

The report describes experimental results for aerodynamic phenomena in high speed tube-vehicle transportation systems. The data is obtained from a scaled facility which is suitable for a broad range of operating conditions and vehicle configurations. Seven vehicle configurations were used to measure vehicle drag force and the histories of static and dynamic pressure. The results correspond to full-scale vehicles approximately 8 to 13 feet in diameter operating in an evacuated tube (p=.0056 atm) 7 miles long. The history of static wall pressure in the far field is analyzed and related to the propagation of disturbances along the tube. Also, the pressure was measured in the region of the near field, and the results compared for various geometries of the vehicle. (Author)

Key concepts: Drag, Aerodynamics, Aerodynamic drag, Tube (container), Range (aeronautics), Marine engineering, Aerospace engineering, Engineering

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