Overall flow creating method for deep-water test basin

Abstract

The invention discloses an overall flow creating method for a deep-water test basin. The overall flow creating method for the deep-water test basin is characterized in that by the adoption of a horizontal partitioning flow creating mode in a false bottom, a plurality of independent flow channels are arranged in the false bottom in the direction parallel to the width direction of the deep-water test basin so as for form a complete flow field, a flow creating water outlet and a flow creating water return port are arranged in the two ends of each independent flow channel and located on the surface of the false bottom, inlet water is located on one side, and outlet water is located on the other side; each flow creating water outlet is provided with an outlet water flow rectifying section composed of a flow guide groove, a contracting trench, a flow rectifying plate and a flow rectifying baffle; and each flow creating water return port is provided with a return water flow rectifying section. Compared with the prior art, the overall flow creating method for the deep-water test basin is advantageous in that a circulating flow creating system does not protrude out of the surface of the false bottom of the basin, the complete flow field is formed on the false bottom, the overall uniformity of water flow in the width direction of the basin within a certain depth of the surface of the basin is ensured, disturbance factors such as turbulence flow and vortexes are avoided, the structure is simple, the flow rectifying effect is good, and a test model of an ocean environment can be correctly simulated.

Description

technical field [0001] The invention relates to the technical field of marine deep-water experiments, in particular to an overall flow-making method for a deep-water test pool simulating the ocean current environment. Background technique [0002] At present, the domestic pool flow system mainly has two circulation forms: inside the pool and outside the pool, and there are two types of flow in the pool circulation system. One is that the water pump pushes the water flow from one end of the pool to the other to form a water flow. The water inlet and outlet of the water pump are all completed on the same side of the pool, and the in and out water flows affect each other, and the water flow in the pool is turbulent, which cannot form a stable flow field. The other is to install a flow-making pump at the lower part of the false bottom of the pool, so that the water flow circulates along the false bottom of the pool to form a water flow. The water in and out of the water pump in ...

AI Technical Summary

Problems solved by technology

[0002] At present, the domestic pool flow system mainly has two circulation forms: inside the pool and outside the pool, and there are two types of flow in the pool circulation system. One is that the water pump pushes the water flow from one end of the pool to the other to form a water flow. The water inlet and outlet of the water pump are completed on the same side of the pool, and the in and out water flows affect each other. The water flow in the pool is turbulent, and a stable flow field cannot be formed.

The other is to install a flow-making pump at the lower part of the false bottom of the pool, so that the water flow circulates along the false bottom of the pool to form a water flow. The water in and out of the water pump in this flow-making method is on both sides of the pool, which can form a certain flow field in the pool. Since the water inlet and outlet are located at both ends of the false bottom of the pool, and rectification devices cannot be installed, a uniform and complete overall flow cannot be formed in the pool.

The external circulation system of the pool is that the water pump is set outside the pool, pumping water from one side of the pool and entering water from the other side to form an overall water flow in the pool. Since there is no rectification and energy dissipation facilities, the water flow in the pool is turbulent and cannot form a stable flow. field

[0003] The problems existing in the existing technology are: the water flow in the simulated ocean pool cannot flow uniformly and smoothly at the same time, the flow direction is unstable, and a stable and uniform overall flow cannot be formed in the pool, and it is easy to generate large turbulent flow and vortex and other disturbances factors, it is impossible to simulate the gradient flow of different flow fields, and it cannot completely simulate the real ocean current environment, which greatly affects the accuracy of the test results

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