ON THE FORM FACTOR ESTIMATION FOR A BARGE HULL, FROM A "GEOSIM" ANALYSIS

The calculation of barge hull resistance according to the ITTC (International Towing Tank Conference) '78 has proven unreliable because of the high values of the form factor. A survey was therefore carried out by means of a series of trials for four geometrically similar barge models to measure the scale effect on form factors. Because of the high resistance induced by the flow separation, the results disagree at times with those that would be obtained using classical theories. Recent calculation proposals that could solve these problems are examined. The resistance increase due to the application of appendages is also discussed on the basis of certain procedures that have recently been developed.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Zotti, I
• Conference:
  • International Symposium on Practical Design of Ships and Mobile Units (PRADS), 4th
  • Location: Varna, Bulgaria
  • Date: 1989-10-23 to 1989-10-28
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 8p.

Subject/Index Terms

• TRT Terms: Barges; Fluid resistance; Hulls
• Uncontrolled Terms: Hull resistance; Model tests; Scale effect
• Old TRIS Terms: Geosims; Hull form
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00660544
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM