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一、试验目的,内容和方法: 对斜轴半浸式螺旋浆的工作特点建立初步的感性认识;与全浸式螺旋浆进行粗略的定性比较;探讨试验方法並指明今后的研究方向。在平轴全浸试验基础上,进行了平轴半浸试验和斜轴半浸试验。平轴半浸试验与一般的全浸试验相同,但斜轴半浸试验如果仍然使螺旋浆在前,敞水箱在后,则敞水箱将进水。所以,改成与自航试验相类似的试验方法:敞水箱在前,螺旋浆在后。由于轴系倾斜的缘故,敞水箱和轴系均完全处于水面上空,对迎面来流不会产生扰动。轴倾角为13度。
First, the purpose of the experiment, content and methods: the semi-submerged screw slurry oblique axis of the working characteristics of the establishment of a preliminary sense of perceptual; and fully immersed propellants rough qualitative comparison; explore the test methods and indicate future research directions. Based on the flat shaft immersion test, the flat shaft semi-immersion test and the inclined shaft half-immersion test were carried out. Flat-shaft half-immersion test and the same general immersion test the same, but the inclined shaft semi-immersion test if the propeller is still in front of the open tank behind, then the open tank will water. So, into a test similar to the self-pilot test method: open tank in front of the propeller in the back. Due to the inclination of the shaft, the open water tank and the shaft system are completely above the water surface, and no disturbance to the oncoming flow. The shaft inclination is 13 degrees.