HYDRODYNAMIC COEFFICIENTS OF AN ELONGATED BODY RAPIDLY APPROACHING A FREE SURFACE

A hydrodynamic analysis is made for the motion of a submerged, elongated body of revolution rapidly approaching a free-surface with longitudinal, transverse, and rotational velocities, and an arbitrary angle of attack. Axial doublet distributions are used to generate the flowfield and the prescribed body shape. The hydrodynamic forces and moments acting on the body are determined by the generalized Lagally theorem. Expressions for the hydrodynamic force and moment are derived and numerical solutions for the hydrodynamic coefficients are obtained. Through the characteristics behavior of these coefficients, effects of the free surface on the body dynamics are examined.

• Corporate Authors:

  American Institute of Aeronautics and Astronautics

  1290 Avenue of the Americas
  New York, NY  United States  10019
• Authors:
  • Chow, S K
  • Hou, A Y
  • Landweber, L
• Publication Date: 1976-4

Media Info

• Features: References;
• Pagination: p. 46-54
• Serial:
  • Journal of Hydronautics
  • Volume: 10
  • Issue Number: 2
  • Publisher: American Institute of Aeronautics and Astronautics

Subject/Index Terms

• TRT Terms: Bodies of revolution; Free surface; Velocity
• Old TRIS Terms: Free surface effects; Velocity potential
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00141469
• Record Type: Publication
• Source Agency: American Institute of Aeronautics and Astronautics
• Files: TRIS
• Created Date: Oct 26 1976 12:00AM