Three-dimensional wake field testing device

Abstract

The invention belongs to the field of fluid measurement and discloses a three-dimensional wake field testing device which comprises a bracket, sensor bases, a guide ring, guide rods and guide blades;the bracket is used for connecting a component to be tested; the sensor bases are arranged on the guide ring and are used for mounting sensors; the guide ring comprises an inner ring and an outer ring; and multiple guide rods are distributed on the inner ring and the outer ring respectively and are used for connecting the guide blades and the guide ring. By adopting the three-dimensional wake field testing device provided by the invention, the guide rods realizes regulation of front-and-back relative positions of the outer ring and the inner ring by regulating self lengths so as to regulate measurement angles of the sensors; and the guide blades are distributed on the outer surface of the bracket and drives the inner ring and / or the outer ring to rotate by rotating along the outer surfaceof the bracket so as to drive the sensor bases to rotate, so that a measurement region of each sensor on the corresponding sensor base is regulated. Through the three-dimensional wake field testing device, the problems of difficulty in arrangement of the sensors, inconvenience in mounting and the like are effectively solved, a measurement result is accurate and visual, and very large help is provided to performing, operation and data collection of a water test.

Description

technical field [0001] The invention belongs to the field of fluid measurement, and more specifically relates to a three-dimensional wake field testing device. Background technique [0002] When the submarine moves at a constant speed underwater, the surrounding water medium and the hull generate mutual motion to form a flow field that flows around the hull. The flow characteristics of these flow fields, especially the wake field, not only have a direct impact on the hydrodynamic performance of the submarine, but also the induced flow is one of the main sources of the hydrodynamic noise of the submarine, which has an important impact on the concealment of the submarine. At present, there are two main research methods on the characteristics of the flow field of the submarine, especially the wake field: one is to simulate the flow field characteristics of the hull through numerical simulation CFD technology. Obviously, this method is convenient and desirable. However, usually...

AI Technical Summary

Problems solved by technology

However, there is currently no relevant device that can be provided to the experimenters, and the experimenters often need to find ways to arrange the sensors for the experiment. The final result is that it is difficult to carry out the experiment.

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