HYDRODYNAMICS OF A BODY MOVING OVER A MUD LAYER - PART II: ADDED-MASS AND DAMPING COEFFICIENTS

A ship cross section undergoes periodic oscillations in a finite water layer, overlaying a mud layer. The upper fluid is considered to be inviscid, and the mud is modelled as a Newtonian liquid. The section contour is replaced by a distribution of wave sources with unknown strength, satisfying a corresponding boundary integral equation. Its kernel is expressed through a newly derived Green function. The numerical solution of the integral equation allows evaluation of the added-mass and damping coefficients. Specific computations pertaining to Lewis forms show a drastic dependence of the added-mass and damping coefficients on the mud thickness and density.

• Supplemental Notes:
  • J Ship Res, v 40 n 1, March 1996, p 39 [7 p, 27 ref, 15 fig]
• Authors:
  • Zilman, G
  • Kagan, L
  • Miloh, T
• Publication Date: 1996

Language

• English

Subject/Index Terms

• TRT Terms: Mud; Oscillation
• Old TRIS Terms: Added mass; Damping factor; Oscillating bodies
• Subject Areas: Geotechnology; Marine Transportation;

Filing Info

• Accession Number: 00728016
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Nov 4 1996 12:00AM