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Ship wake flow realistic simulation method allowing bubble density to be adjusted

A simulation method and wake flow technology, applied in fluid dynamics test, machine/structural component test, instrument, etc., can solve the problems of difficult control of consistency, waste of manpower, material and financial resources, and susceptibility to environmental influences

Active Publication Date: 2014-04-09
中国船舶重工集团公司第七二六研究所
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Problems solved by technology

Forming such a large-volume underwater acoustic target many times is not only easily affected by the environment, but also extremely difficult to control its consistency, resulting in a great waste of manpower, material and financial resources

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  • Ship wake flow realistic simulation method allowing bubble density to be adjusted
  • Ship wake flow realistic simulation method allowing bubble density to be adjusted
  • Ship wake flow realistic simulation method allowing bubble density to be adjusted

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Embodiment Construction

[0060] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0061] The invention provides a realistic simulation method for ship wakes with adjustable bubble density. Under the conditions of a certain range of gas pressure input into a metal box, a certain water flow rate and a certain length of a rectangular nozzle, the width of the rectangular nozzle is adjusted to change the simulated wake. The density of the bubbles in the medium, and then the method of realistically simulating the wake of the ship. The ship wake simulation system consists of air compr...

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Abstract

The invention provides a ship wake flow realistic simulation method allowing bubble density to be adjusted. The method comprises the following steps: (1) setting the pressure intensity range of air output by an air compressor, (2) setting the flow quantity of water flow output by a water pump, (3) adjusting the width of a rectangular nozzle of a metal box, (4) performing optimization design on parameters of the width of the nozzle of the metal box according to test measurement values, and (5) detecting the effect of ship wake flow realistic simulation. The ship wake flow realistic simulation method can be easily achieved in a water pool; the adjustment of the bubble density in the ship wake flow realistic simulation is achieved by changing the width of the nozzle, and therefore the ship wake flow realistic simulation method has important significance for acoustic characteristic studying of wake flow.

Description

technical field [0001] The invention belongs to the technical field of underwater acoustic engineering, and relates to a method for realistically simulating the wake of a ship with adjustable bubble density, in particular mixing gas with a certain pressure range and water with a certain flow rate in a metal box to form a water flow containing a large number of bubbles. Flows from a rectangular spout with a certain area, simulating the wake of a ship. Background technique [0002] With the continuous expansion of the application scope of hydroacoustic engineering technology, the underwater acoustic targets studied in hydroacoustic engineering are becoming more and more diverse. Some underwater acoustic targets have large volume and limited existence time, so the time window for experimental research is small. Forming such a large-volume underwater acoustic target many times is not only easily affected by the environment, but also extremely difficult to control its consistenc...

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Application Information

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IPC IPC(8): G01M10/00
Inventor 滕月慧刘平香宋洋李颂文俞铮皓
Owner 中国船舶重工集团公司第七二六研究所
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