Forecast On The Towing Capacity Of The Surface Platform Carrying High-speed Towing

Underwater towed system,or towed multi-parameter profile measurement system,is an increasingly widely used underwater detection device in the field of ocean research,marine monitoring and military.It has a special purpose in the marine environment,marine resources research and national defense construction.Now drag system is mainly low speed towing system,mooring or towing system state.For high-speed drag,it is now the most common high-speed drag technique was first proposed by the United States OASIS system,which is essentially a helicopter towed system platform is equipped with MH-60 S helicopter,also did not reach the true sense water high-speed drag.It is proposed for high-speed boats to drag the water taxi carrying platform,want to fill the water system equipped with high-speed drag vacancies platform in this regard.Water towing speed carrying platform on endurance,handling,loading capacity,significantly better than the light helicopter,and because the observation point distance measurement points per pound helicopter closer to the supervisory control and data acquisition also has obvious advantages.Measure water speed towing platform equipped with the most important indicator of its towing capacity,this paper intends to hydroplane as the high-speed drag and drag the water carrying water platform equipped with towing capacity for analysis,forecasting.Firstly,this paper on consulting a large number of towed system,especially the high speed data of the drag system is put forward on the basis of the proposed high-speed glider as water drag carry platform solutions and points out that the towing capacity of high-speed drag the water carrying platform of the forecast of the important scientific and practical significance.Secondly,using the CFD technology to the towing condition of hull around flow field numerical simulation,to forecast the resistance of the glider.And draw the velocity contours and pressure contours and free surface figure to capture the details of the flow field.And then using the CFD technology to drag of hull,drag the total resistance to carry on the forecast,and separately using numerical calculation method for prediction of towing resistance.And draw the velocity contours and pressure contours and free surface figure to capture the details of the flow field.Respectively by the method of model experiment on the end,stern resistance of the drag force glider and with stern resistance of the drag force to carry on the forecast,will not take stern model test and the drag force with stern ship model test,and the drag of the drag force status,and the results of numerical calculation of the drag condition to contrast and error analysis.Using a stern ship model test results of the drag force and drag the CFD numerical results of two kinds of methods for high speed drag towing ability to forecast the water carrying platform and make the error analysis.