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Method for measuring thickness and maximum flow velocity of overtopping water body

A technology of maximum flow velocity and water body, which is applied in the direction of measuring device, fluid dynamics test, machine/structural component test, etc., can solve the problems such as difficult to effectively measure the thickness of water body over waves, maximum flow velocity, short action time, etc., and achieve the goal of laying Convenient and efficient effect

Active Publication Date: 2019-05-31
ZHEJIANG INST OF HYDRAULICS & ESTUARY
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AI Technical Summary

Problems solved by technology

Due to the periodic action of waves, the oversurging water body is discontinuous and the action time is extremely short. Therefore, in the model test of seawall wave climbing, conventional measurement methods are difficult to effectively measure the thickness of the oversurging water body and the maximum flow velocity. One of the research difficulties

Method used

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  • Method for measuring thickness and maximum flow velocity of overtopping water body
  • Method for measuring thickness and maximum flow velocity of overtopping water body
  • Method for measuring thickness and maximum flow velocity of overtopping water body

Examples

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Embodiment 1

[0026] Embodiment 1: refer to Figure 1 to Figure 3 , a method for measuring the maximum flow velocity of a surfing water body, which includes,

[0027] Modular sensors are used to obtain pressure data, and fluid parameters such as water density and impact coefficient are input as required. After the calculation of the above fluid parameters, the flow velocity value can be accurately obtained, and the maximum flow velocity can be obtained.

[0028] The calculation formula of the above operation is:

[0029]

[0030] Among them, in the formula: p is pressure, u is flow velocity, ρ is water density, C w is the impact coefficient.

[0031] The above-mentioned modular pressure sensor is located above the breakwater wall and is perpendicular to the breakwater wall. The above-mentioned modular pressure sensor includes a rigid or flexible plate, and a pressure sensor is provided on the front of the plate to obtain measurement data at different positions above the breakwater wal...

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Abstract

The invention discloses a method for measuring the thickness and the maximum flow velocity of an overtopping water body. The method comprises the steps of: by employing a modular pressure sensor vertically arranged at the upper portion of a wave-blocking wall, obtaining and / or inputting fluid parameters as needed, and utilizing a relationship between dynamic water pressures and flow velocities tomeasure the maximum flow velocity of an overtopping water body; and according to the distribution of the vertical pressure, distinguishing a nappe area and a non-nappe area, and outputting vertical distance values between two boundary points and the wave-blocking wall to obtain the thickness of the overtopping water body. According to the steps above, the pressure data about the overtopping waterbody can be accurately measured, the layout is convenient and efficient, and the measurement difficulties of the thickness and the maximum flow velocity of the overtopping water body are solved. The method for measuring the thickness and the maximum flow velocity of an overtopping water body is accurate and efficient.

Description

technical field [0001] The invention relates to a fluid measurement method, in particular to a method for measuring the thickness and maximum flow velocity of a surfing water body. Background technique [0002] Seawall is an important anti-tide and anti-wave barrier in coastal areas. It can effectively resist storm surges and other marine natural disasters, protect the lives and property of people in coastal areas, and is the lifeline of economic and social development in coastal areas. However, under the action of super-standard storm surges, the damage of seawalls is often unavoidable. A large number of examples and studies have shown that seawall surges are the main damage form causing seawall collapse. [0003] Under the attack of storm surge, waves will climb over the top of the embankment or the wave retaining wall along the tidal surface of the seawall, and the water body will splash on the top of the embankment and the inner slope. The water body formed when the wav...

Claims

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Application Information

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IPC IPC(8): G01M10/00
Inventor 胡金春陈刚曾剑
Owner ZHEJIANG INST OF HYDRAULICS & ESTUARY
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