Resistance Performance Of The Numerical Simulation Analysis Of The Straight Side Planing Hull Which Have Tack

Paning hull sailing rely on fluid dynamic pressure generated by the weight of the bracket most of the hull speed boats, boats shape than the drainage short and wide, relatively flat bottom. If the bottom and side of the junction was sharp, the formation of sharp bilge, bilge boat also called tip. Currently, the hydrodynamic performance planing hull forecast is relatively complex, ship model test method used depends. However, due to the model ship model test small, high speed, the limitations of the test conditions are harsh and strong. Numerical simulation methods, scientific simulation speed boats can sail, our economy and invest in small, reproducible, overcomes the limitations of the test. With the recent CFD CFD development and improvement, using numerical simulation analysis and forecasting resistance vessels favored.In this paper, the performance of hull lines and related resistance hydroplane US 62 series are analyzed, on this basis, select an aspect ratio of 4.09 No. 4667-1 planing hull ship model test model for the study, the use of software to ship Gambit type lines were modeled based on CFD simulation theory, the use of simulation software finemarine No. 4667-1 planing craft model of numerical simulation, test resistance value will ship model simulation results are compared with the model to validate the method reliability, the instructions to select the computational domain, set up division and calculation parameters for numerical simulation of the grid ship. After the ship in a female-type boat, derive new ship, straight wall Chute and general planing hull catamaran. Then apply the same approach to derive a straight wall Chute and general body double hydroplane resistance numerical simulation models, each model in different conditions to get simulation results. In order to more clearly see the resistance difference between the respective ship simulation, this paper is provided between each model contrast, clearer analyzes simulation results of each ship and the resistance difference in performance reasons.By 4667-1 model high resistance value simulation value comparison test to verify the reliability of this method, a small error. The simulation results of 62 and the total resistance of planing craft model and the straight wall slide type planing and general planing craft are compared Simulation of different resistance values of model comparison Chute get straight wall at high speed planing craft to get water on the lift through a linker thereby reducing drag effect is obvious, and the change in the height of the slide will slide straight wall Chute impact resistance performance boats. Finally, according to Fu Rude assumed law to obtain residual resistance coefficient straight wall Chute each condition for straight wall Chute hydroplane resistance to provide a more efficient way to estimate.