PRESSURE-VELOCITY RELATIONSHIP IN IMPACT OF A SHIP MODEL DROPPED ONTO THE WATER SURFACE AND IN SLAMMING IN WAVES

An experimental study was carried out to correlate for various ship forebody shapes the impact pressure-velocity relationship as obtained by testing a model in waves and by dropping the model onto the water surface. It was found that both approaches yield pressures that are approximately proportional to the square of the impact velocity but that the drop tests yield pressures higher than those in waves by a factor of two to three for a given section shape. Both approaches yield the same qualitative results as to the relationship of pressure and section form; specifically, the more blunt the body, the larger the impact pressure for a given impact velocity. (Author)

• Corporate Authors:

  Naval Ship Research and Development Center

  Bethesda, MD  United States  20034
• Authors:
  • Ochi, M D
  • Bonilla-Norat, J
• Publication Date: 1970-6

Media Info

• Pagination: 47 p.

Subject/Index Terms

• TRT Terms: Impact; Pressure; Slamming
• Old TRIS Terms: Impact pressure
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00007570
• Record Type: Publication
• Source Agency: Defense Documentation Center
• Report/Paper Numbers: NSRDC-3153
• Files: TRIS
• Created Date: Dec 30 1970 12:00AM