| With increasing of the ship speed, it will causing the increase of wave resistance,and the deterioration of the hull vibration problem. In the various measures to reduce the wave resistance of high-speed ship, it is a very extensive and effective facility to install Hydrofoil on the ships. The hydrofoil for improve the speed, enhance the ship seakeeping and sea-keeping capacity has played a tremendous role. Therefore studying hydrodynamic performance of the hydrofoil has important significance.The development of hydrofoil has been reviewed in this dissertation, including the Finite Element Method, Finite Volume Method, Vortex Lattice Method, as well as its application in engineering. It also gives a brief introduction of one new computation model Based on Green's theorem, In addition to further study Flapping-Wing hydrodynamic performance, we also designed the test device, and the succeed in the test.The main task focuses on the analysis of the movement of hydrofoil in infinite deep, one computation model is reduced to solve the problem of steady flow around a two-dimensional hydrofoil by distribute sources and sinks and dipole at the border. We take surface velocity potential for unknowns to solve the problem in this method, then get the hydrofoil pressure distribution and related hydrodynamic performance parameters. Then calculate velocity distribution by the difference equation, and we get the hydrofoil pressure distribution and related hydrodynamic performance parameters by using Bernoulli's integral equation. The whole calculation is dealt with C language. Another study in this paper is the design of experimental testing device, and emulated the device by 3D software Solidworks.This paper analysis the problem steady flow around both two-dimensional cylinder and hydrofoil individually. By compare the numerical results and experimental data and related theoretical solution. This method proved the feasible and reliable.
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