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Aircraft carrier wake flow numerical simulation method based on LBM-LES

A numerical simulation, aircraft carrier technology, applied in CAD numerical modeling, electrical digital data processing, instruments, etc., can solve the problems of aircraft carrier model modeling difficulties, calculation accuracy and calculation efficiency are difficult to guarantee and so on

Pending Publication Date: 2021-04-16
南京欧帕提亚信息科技有限公司
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Problems solved by technology

[0007] In view of the problems such as difficulty in modeling aircraft carrier models, calculation accuracy and calculation efficiency that exist in the above-mentioned prior art, the present invention is proposed

Method used

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  • Aircraft carrier wake flow numerical simulation method based on LBM-LES
  • Aircraft carrier wake flow numerical simulation method based on LBM-LES
  • Aircraft carrier wake flow numerical simulation method based on LBM-LES

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Embodiment 1

[0041] refer to Figure 1 to Figure 16 , for an embodiment of the present invention, a kind of aircraft carrier wake numerical simulation method based on LBM-LES is provided, this kind of aircraft carrier wake numerical simulation method based on LBM-LES simulates by CFD, specifically comprises:

[0042] (1) Select the three-dimensional aircraft carrier model to determine the ideal landing trajectory of the carrier-based aircraft;

[0043]In the present invention, what the aircraft carrier model selected was the Kyiv-class aircraft carrier "Baku" of Russia. The aircraft carrier has a total length of 273 meters and a width of 52 meters. Four arresting cables are generally arranged on the deck of an aircraft carrier, the first one is located about 50m from the stern of the ship, and the remaining three arresting cables are installed at intervals of 12m from the stern to the bow. When ideally landing, the carrier-based aircraft flies along the direction of the inclined deck and ...

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Abstract

The invention discloses an aircraft carrier wake flow numerical simulation method based on LBM-LES, and the method employs a numerical method combining LBM-LES with lattice Boltzmann and large eddy simulation, simulates wake flow wind fields at different wind speeds and wind direction angles for an unsimplified aircraft carrier model, and can simulate the impact on the wind field from various structures on an aircraft carrier, so that a simulation result is closer to a real wind field.

Description

technical field [0001] The technical field that the present invention relates to, particularly relates to a kind of numerical simulation method of aircraft carrier wake based on LBM-LES. Background technique [0002] During the approach and landing process of the carrier-based aircraft, the aircraft carrier travels against the wind at a certain speed, and a complex turbulence zone will be formed at the stern of the ship. It is of great significance to study the aircraft carrier wake field structure and its variation with external factors for the accuracy and safety of carrier aircraft landing. [0003] The ship wake research relying on the direct measurement of the real ship and the wind tunnel test not only costs a lot, but also cannot obtain the fine structure of the wind field. Therefore, with the improvement of computer hardware and software, Computational Fluid Dynamics (CFD) technology has been more and more applied in ship wind field simulation. The research results...

Claims

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Application Information

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IPC IPC(8): G06F30/28G06F111/10G06F113/08G06F119/14
Inventor 江召兵王亮
Owner 南京欧帕提亚信息科技有限公司
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