截流板/尾楔对加装T型水翼的双体船阻力影响的数值计算

Numerical Study on Influence of Interceptor/Stern Wedge on Resistance of Catamaran With T-foils

加装T型水翼能改善双体船的耐波性,但同时会引起船体总阻力的增加。在船体尾部加装截流板/尾楔,可以改善尾部流场,提升船体的阻力性能。本文对截流板/尾楔对加装T型水翼的双体船阻力性能的影响进行了研究。采用CFD数值计算方法对加装截流板/尾楔的双体船尾部流场进行了模拟分析。结果显示,本文所采用的方法能够用于加装附体的双体船的阻力预报,截流板/尾楔能够改善双体船的尾部流场,从而降低加装T型水翼的双体船的阻力。

T-foils can improve the seakeeping performance of a catamaran, and at the same time increase the total hull resistance. Adding interceptor/wedge to the stern of the hull can improve the flow field of ship and reduce the hull resistance. This paper studies the influence of interceptor/stern-wedge on the resistance of catamaran with T-foils. The flow field at the stern of a catamaran fitted with interceptor/wedge is simulated by CFD numerical method. The results show that the method used in this paper can be used to predict the resistance of the catamaran with appendages, and the interceptor/wedge can improve the flow field at the stern, so as to reduce the resistance of the catamaran with T-foils.