Method of calculating interaction of wave and irregular structure object

A structural and irregular technology, applied in computing, computer-aided design, design optimization/simulation, etc., to solve problems that affect model computing efficiency and application limitations

Active Publication Date: 2018-07-17
LUDONG UNIVERSITY
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing calculation methods and provide a method for calculating the in

Method used

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  • Method of calculating interaction of wave and irregular structure object
  • Method of calculating interaction of wave and irregular structure object
  • Method of calculating interaction of wave and irregular structure object

Examples

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Embodiment 1

[0123] Example 1, see figure 1 , 2 , 3, 4, the first step, according to the designed numerical tank size and the location of the irregular structure, generate the grid of the calculation area; the grid is composed of grid cells, including empty grid cells, internal fluid network grid cells and fluid grid cells in the near-wall region;

[0124] The second step is to set the initial conditions for the flow field in the calculation area; the initial conditions include the initial values ​​of velocity and pressure; the initial conditions refer to that the velocity of all grid points in the calculation domain is set to zero, and the pressure of the whole domain The value is set according to the hydrostatic pressure distribution;

[0125] The third step is to simulate the viscous fluctuating fluid based on the Reynolds time-average N-S equations, and use the turbulence model to close the N-S equations as the control equation of the calculation method; the Reynolds time-ave...

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Abstract

The invention discloses a method of calculating interaction of a wave and an irregular structure object. The method is characterized in that the method comprises: simulating viscous wave fluid on thebasis of Reynolds time-averaged N-S equations, and utilizing a turbulence model to close the N-S equations to use the same as control equations of a calculation method; and adjusting pressure in an iterative manner through an SIMPLE algorithm to enable internal fluid units to meet a continuous equation and free surface units to meet free-surface dynamic-boundary conditions, and adjusting a velocity field at the same time. Compared with traditional methods of calculating interaction of the wave and the irregular structure object, the method of the invention is based on the N-S equations of considering fluid viscosity, adopts a rectangular grid to divide a calculation area, and has the advantage that a numerical result more accords with physical reality.

Description

Technical field: [0001] The invention relates to the technical field of breakwaters, in particular to a method for calculating the interaction between waves and irregular structures; Research on the interaction problem of regular structures. Background technique: [0002] With the rapid development of the marine economy and the country's vigorous promotion of the construction of the "Maritime Silk Road" economic belt, many large ports, docks, offshore platforms, sea-crossing bridges, floating airports and artificial islands are gradually moving towards harsh sea conditions and geological conditions. Complex deeper water developments. The traditional breakwater structure types, mainly slope type and caisson gravity type, have disadvantages such as high engineering cost, difficult construction, and unfavorable water exchange in the protected sea area, which can no longer meet the structural type and function requirements of marine engineering construction. In recent years, e...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F2111/10G06F2119/06
Inventor 李雪艳王庆朱小松战超张金芝
Owner LUDONG UNIVERSITY
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