FLOW PROPERTIES OF A SLENDER BODY TRAVELING CENTERED IN A PERFORATED TUBE

The previously derived boundary condition which states the law governing the flow through a perforated wall (see PB-177 766) is applied to solve the title problem for a body of revolution. It is shown that even a moderate amount of perforations can cause the axial perturbation velocity in the annular region to be reduced by an order of magnitude in comparison with the closed wall case. It may be inferred from this that all aerodynamic forces, including drag, can be reduced considerably by perforating the walls. Thus, from the point of view of the body aerodynamics, tube wall perforations will have a beneficial effect on a tube transportation system. (Author)

• Corporate Authors:

  Oceanics, Incorporated

  Plainview, NY  United States 
• Authors:
  • Goodman, T R
• Publication Date: 1968-4

Media Info

• Pagination: 29 p.

Subject/Index Terms

• TRT Terms: Aerodynamics; Intelligent transportation systems; Pneumatic conveyors; Tubing
• Old TRIS Terms: Advanced systems; Tube systems; Tube vehicles
• Subject Areas: Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00039064
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: TR-68-43
• Contract Numbers: C-265-66
• Files: TRIS
• Created Date: Nov 24 1973 12:00AM