Traction propelling propeller jet flow and ship wave turbulence simulation experiment device and method

Abstract

The invention discloses a traction propelling propeller jet flow and ship wave turbulence simulation experiment device and method. The device comprises a transparent water channel, a model ship, a traction mechanism, a vertical lifting mechanism, a water-power observation instrument and a water sample collection device, wherein the transparent water channel has a stripped channel structure; the model ship is detachably connected with a propelling propeller; the traction mechanism comprises a traction rope and a driving mechanism which is in driving connection with the traction rope; the driving mechanism is used for driving the model ship to move horizontally at different speeds along the length direction of the water channel in the transparent water channel under the action of the traction rope; the vertical lifting mechanism is used for changing the immersion depth of the model ship in the transparent water channel; the water-power observing instrument is used for observing the waterbody in the water channel; and the water sample collection device is used for collecting the water sample in the water channel. Through adoption of the device, the moving speeds and directions of theship and the propelling propeller, the ship immersion depth, the rotation and speed and immersion depth of the propelling propeller can be simulated indoor, and the influence on the flow field structure, turbulent fluctuation feature, sediment suspension and pollutant migration feature of the propelling propeller and jet flow and the ship wave can be observed.

Description

technical field [0001] The invention relates to a traction propulsion propeller jet flow and ship traveling wave disturbance simulation experiment device and test method, belonging to the technical field of environmental protection. Background technique [0002] As an important part of the modern comprehensive transportation system, shipping has become the main mode of transportation for bulk cargo in my country due to its advantages of low investment, large transportation capacity, low cost and low energy consumption. As of the end of 2017, the navigable mileage of inland waterways across the country reached 127,000 kilometers, and the cargo turnover of water transport was 9,861.125 billion ton-kilometers, accounting for 51% of the total cargo turnover. However, the navigation of ships will disturb the sediments at the bottom of the channel, causing pollutants to migrate at the water-soil interface, destroying the habitats of aquatic plants, benthic animals and fish, and ad...

AI Technical Summary

Problems solved by technology

However, the changeable external environment and high uncertainty, especially the ships themselves in the channel, bring a lot of inconvenience to the on-site observation, and it is difficult to control the driving state of the ship in the on-site observation, and it is difficult to truly capture the deposition of sediments under different hydrodynamic conditions. Therefore, it is very meaningful to build an indoor test platform that simulates the wave and current conditions generated by ship navigation, which is conducive to in-depth research under the controllable conditions of ship navigation and propulsion propeller operation.

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