High-pressure water tunnel test device and test method thereof

Abstract

The invention discloses a high-pressure water tunnel test device and a test method thereof. The high-pressure water tunnel test device comprises a water tunnel test section, a shaftless propelling device, an air supply pipeline, air supply equipment, a pressure-regulating cavitation-removing device, reducing and expanding sections and accelerating pipelines. The two ends of the water tunnel test section are respectively connected with a reducing pipeline and a expanding pipeline and are externally connected with the accelerating pipelines, and the pipelines form a closed loop. One or more shaftless propelling devices are dispersedly arranged on the water tunnel acceleration pipeline. If there are a plurality of shaftless propelling devices, the multiple shaftless propelling devices are dispersed and distributed in the whole course of the acceleration pipeline. The air supply equipment and the air supply pipeline are arranged outside a water tunnel pipeline to provide a power working medium for the shaftless propelling devices. According to the system, the flow and the flow speed of an existing water tunnel system can be remarkably improved, the energy supply problem of high-power equipment is solved, input energy is efficiently converted into the water flow speed, meanwhile, the high-pressure state under the deep sea condition can be simulated, and the cavitation problem caused by high-speed water flow is effectively solved.

Description

Technical field [0001] The present invention belongs to the field of experimental fluid mechanics, and is specifically involved in a high pressure water hole test device and a test method thereof. Background technique [0002] High-speed waterway is an indispensable importance of underwater high-speed sports, is one of the important equipment of fluid mechanics research, but there are not many research institutions with large cross-section at home and abroad. [0003] At present, there are only three high-speed water holes in the world: 1) Ultra-high-speed water holes in the United States, the United States, the water rate of 83.8m / s, cross-section diameter is 0.038m; 2) High speed of Swiss Water Conservancy Machinery Laboratory Water hole, water speed is 50m / s, the cross-sectional size of the test section is 0.15m × 0.15m, length 0.75m; 3) The high-speed water hole of the Dutch Maritime Institute, the water speed is 65m / s, the cross-sectional size of the test section is 0....

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Problems solved by technology

[0013] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a high-pressure water tunnel test device and its test method to solve the problem of the low flow rate and flow velocity of the water tunnel system in the prior art, and it is difficult to simulate the high-pressure state and overcome cavitation at the same time question

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