A NONLINEAR LIFTING SURFACE THEORY FOR THE PREDICTION OF SIDE FORCE AND YAW MOMENT OF LOW ASPECT RATIO SURFACE PIERCING SIDEWALLS

A non-linear lifting surface theory has been applied to the prediction of the side force and longitudinal center of pressure of yawed low aspect ratio surface piercing sidewalls. In the fundamental case of a fully wetted sidewall, and improvement on the solution of the mathemtical model developed by Bollay has been made through the assumption of a more general chordwise loading distribution and the use of numerical methods to solve the resulting integral equations. Comparisions of the results of this theory with experimental results are given. The effects of suction side ventilation have been investigated. The case of a yawed sidewall having a fully ventilated suction side has been formulated, again using a model based on the non-linear model of Bollay. The results of this problem are compared to the results of the fully wetted case and to experimental results.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Glasson, D P
• Publication Date: 1976-5

Subject/Index Terms

• TRT Terms: Aerodynamic lift; Surface effect ships; Vehicle design
• Old TRIS Terms: Lifting surface theory; Skirt design
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00142343
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Nov 23 1976 12:00AM