Prediction of Acceleration Hydrodynamic Coefficients for Underwater Vehicles from Geometric Parameters
Abstract
A compilation of methods for analytically calculating the acceleration hydrodynamic coefficients from the geometric and mass distribution characteristics of an underwater vehicle is presented. Each of the coefficients in the longitudinal and lateral planes are treated in the order introductory description; relative importance in characterizing the vehicle dynamic response; causal relationship; and analytical expression for calculating the value of the coefficient. Relationships for cross-coupled and non-linear hydrodynamic coefficients arising from potential flow theory are derived. All of the techniques have been implemented as part of the computer program GEORGE, a program for computing underwater vehicle dynamic stability characteristics in use at NCSL since 1972. Comparison of experimental and computed results is presented, along with a physical description of the generalized underwater vehicle used as the basis for the calculations and graphic representations contained in the report. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1978
- Accession Number
- ADA052718
Entities
People
- D. E. Humphreys
- K. W. Watkinson