Experiments were performed in a water tunnel to measure the lift, drag, and pitching moment on models intended to simulate a vehicle traveling in a tube. Bodies of three different thickness ratios were tested, and the heave displacement and angle of incidence was varied. In one series of tests the body alone was tested in a tube. In another series a propeller was placed near the rear of the body in the tube and the thrust of the propeller was made equal to the drag of the body, thereby simulating the condition of self-propulsion. The slopes of the measured lift-displacement and moment-displacement curves at zero displacement, for both heave and incidence displacements, were found to give good agreement with a theory previously derived by one of the authors. These curves remained virtually unaltered when self-propulsion was simulated. (Author)

  • Corporate Authors:

    Oceanics, Incorporated

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

Media Info

  • Pagination: 46 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00039048
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: TR-68-45
  • Contract Numbers: C-265-66
  • Files: TRIS
  • Created Date: Nov 24 1973 12:00AM