推力鳍吊舱推进器水动力性能数值研究

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中图分类号：U661.1 文献标志码：A

Abstract： The effect of thrust fin span variation on the hydrodynamic performance of a podded thruster was investigated using numerical simulation. The hydrodynamic performance， forces on various components of the thruster， external flow field，and induced velocity distribution were studied for thrust fin spans L of 0，30.0， 44.8， and 60.2mm .To verify the reliability of the method， the numerical results were compared with experimental test data， showing a maximum error of less than 5% ，indicating the accuracy of the calculations. Furthermore， the results demonstrate that the presence of thrust fins can segment the wake generated by the rotating propellr， recovering energy at the rear of the podded thruster. Adjusting the thrust fin span effectively improves the hydrodynamic performance of the podded thruster， increasing efficiency by 5.73% .When L= 44.8mm ，the lateral force decreased by 6.1% compared to the prototype podded thruster， thereby enhancing the vessel's navigational stability. This study provides a theoretical basis for the design of thrusters.

Keywords： podded thruster； thrust fin； hydrodynamic performance； lateral force

吊舱推进器作为一种新型的船舶电力推进装置，目前逐渐成为船舶推进领域的研究重点[1]。（剩余8217字）