A physical device for simulating the influence of wind field in ocean engineering model tests

Abstract

The invention relates to a physical device simulating wind field influences in an ocean engineering model experiment, which comprises a fan (1), a rotary base (2), a sliding base (3), a slide rail (4), a fan rotation speed controller, a pressure sensor (5) and a data processing unit, wherein the slide rail (4) is installed on an ocean floating body model, the sliding base (3) is installed on the slide rail (4), the rotary base (2) is installed on the sliding base (3), the fan (1) is installed on the rotary base (2), the fan rotation speed controller is connected to the fan (1), effects of an ocean surface wind field on an maritime floating body are simulated by effects brought by inverse acting force of wind force generated in running of the fan (1) to the ocean floating body model, the pressure sensor (5) is respectively connected to the fan (1) and the data processing unit, and wind force data of the fan (1) is collected and sent to the data processing unit for processing and display. In comparison with the prior art, the physical device simulating the wind field influences in the ocean engineering model experiment provided by the invention has the advantages of a simple structure and low cost, etc.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to a physical device for simulating the influence of wind field in model tests of marine engineering. Background technique [0002] In the development, utilization, protection and recovery of marine resources, marine engineering is a key discipline. An important part of ocean engineering is to study the effect of ocean surface wind field on marine floating bodies such as ships and offshore platforms. The current physical simulation device is not only difficult to implement, but also expensive. In order to overcome the high cost of field tests and the difficulty of uncontrolled environmental loads, the effect of ocean surface wind field on ocean floating bodies can be studied through test tank model tests, which is a research method often used in the field of ocean engineering. [0003] At present, the simulation of ocean surface wind field is mainly divided into two cat...

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Problems solved by technology

3) Due to the installation of a large number of facilities and equipment on the marine floating body, its volume is large, which in turn results in a large wind receiving area. Under the combined action of wind, wave and current loads, the floating body will produce a wide range of random drifting motions

4) Internationally, there has been controversy over whether the scale of wind speed in ocean engineering model tests is designed according to the similarity of gravity criterion, which will also affect the credibility of model test results

In addition to the above points, the operation of simulating a wind field with a fan array is complicated and consumes a lot of energy

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