Effect of the Initial Acceleration Upon the Wave Resistance of Ship Models
Abstract
An expression for the wave resistance of a thin ship in non-uniform motion as previously derived is presented, (Trudy Tsentral Aero-Gidrodinam Instit, vyp. 348, 1939). We shall assume a continuous rise from an initial velocity 0 at t=0 to a final velocity CO at t=tsubO. We obtain an asymptotic expression for large t. Such results are, however, of practical interest, for it is precisely the behavior for larger values of t which is of interest in tank experiments. However, to complete the asymptotic results somewhat, the series expansion for small t is also included. The region, of indeterminate extent, lying between the regions where these two series expansions are sufficiently accurate must be investigated numerically. The present investigation has an advantage over a purely numerical one in that much general information can be found without a special choice of ship form. Furthermore, it provides valuable qualitative information which would facilitate more extensive numerical calculations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1961
- Accession Number
- AD0270655
Entities
People
- John V. Wehauden
Organizations
- University of California, Berkeley