NUMERICAL SIMULATION AND EXPERIMENTAL STUDY OF THE HYDRODYNAMIC CHARACTERISTICS OF A HYDROFOIL-STRUT-POD CONFIGURATION WITH INLETS (I)
Under the linearized water surface condition, a numerical method based on the doublet distribution for predicting hydrodynamic characteristics of a foil-strut-pod configuration is presented in this paper. The theoretical formula previously derived by the authors for the calculation of induced velocity caused by a horseshoe vortex with arbitrary orientation beneath the water surface is applied. The computer execution time for calculating the complex exponential integral is obviously reduced by using the new method proposed. It is found that good agreement between calculated and experimental results can be achieved. In addition to the numerical approach, a new test set-up for experimentally studying the integrated hydrofoil waterjet propulsion system has been developed. The lift and drag of foil-strut-pod configuration with inlet flow and the net propulsive force produced by integrated hydrofoil waterjet propulsion systems were obtained from the experiments. It has been shown that the performance of the test set-up is satisfactory, the effects of inlet velocity on lift and drag cannot be neglected, and the net propulsive force is useful for predicting the speed of prototype craft.
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Supplemental Notes:
- Naval Hydrodynamics, 19th Symposium; 23-28 August 1992; Seoul, Korea. Sponsored by Office of Naval Research, USA; National Research Council, USA; and Soc Naval Architects of Korea. Procs. Publ by National Academy Press, Washington, DC, USA, 1994. Session XIII, p 739 [12 p, 5 ref, 1 tab, 18 fig]
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Authors:
- Baiqi, L
- Dexiang, Z
- Publication Date: 1994
Language
- English
Subject/Index Terms
- TRT Terms: Hydrofoils; Numerical analysis; Struts; Waterjets
- Subject Areas: Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 00710263
- Record Type: Publication
- Source Agency: British Maritime Technology
- Files: TRIS
- Created Date: Aug 14 1995 12:00AM