The invention belongs to the field of aerodynamic design of aerodynamic ships, and relates to a ducted propeller of an aerodynamic ship. The overall shape of the ducted propeller is a rectangular blade, the root of the blade is round, the blade body section from the blade root to the blade tip is composed of a plurality of ARAD airfoil shapes similar to the airfoil, the thickness is in smooth transition from thick to thin, and a certain torsion angle is kept between every two sections, so that the airfoil cannot stall in the working process of the blade, and large aerodynamic lift force is generated; the airfoil profile of the propeller blade is gradually thinned from the blade root to the blade tip and is in smooth transition through the continuous change of the thickness of the airfoil profile, so that the strength and rigidity of the propeller are sufficient in the high-speed rotating process, strong thrust can be generated, and the high-speed sailing of an aerodynamic ship on a shoal or a water surface is ensured.
本发明属于空气动力船空气动力设计领域,涉及一种空气动力船涵道螺旋桨。涵道螺旋桨整体形状为矩形桨叶,桨叶根部为圆形,从叶根到叶尖的叶身剖面由多个与机翼相近的ARAD翼型形状组成,厚度由厚到薄光滑过渡,每一个截面之间保持一定的扭转角度,以使桨叶在工作过程中翼型不会失速,并产生较大的气动升力,较小的气动阻力,通过设计翼型厚度的不断变化,使桨叶从叶根到叶尖翼型不断变薄,并且光滑过渡,即保证螺旋桨在高速旋转过程中强度、刚度足够,又能产生强大的推力,保证空气动力船在浅滩或水面上高速航行。
Ducted propeller of aerodynamic ship
一种空气动力船涵道螺旋桨
2022-06-17
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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