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CFD technology-based simulation analysis system of aircraft air circulation refrigeration system

A technology of air cycle refrigeration and simulation analysis, applied in the field of simulation analysis system

Pending Publication Date: 2020-05-12
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for my country's first mainline civil aircraft C919 with independent intellectual property rights in accordance with the latest international airworthiness standards, its bleed air system still uses the engine bleed air method, and there is still a certain gap compared with the most advanced foreign technology.

Method used

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  • CFD technology-based simulation analysis system of aircraft air circulation refrigeration system
  • CFD technology-based simulation analysis system of aircraft air circulation refrigeration system
  • CFD technology-based simulation analysis system of aircraft air circulation refrigeration system

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Embodiment Construction

[0082] The present invention will be further described in detail in conjunction with the following specific embodiments and accompanying drawings. The process, conditions, experimental methods, etc. for implementing the present invention, except for the content specifically mentioned below, are common knowledge and common knowledge in this field, and the present invention has no special limitation content. The specific implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention is acceptable. Should be included in the protection scope of the present invention.

[0083] In order to overcome the deficiencies in the prior art, the present invention proposes a simulation analysis meth...

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Abstract

The invention discloses a CFD (Computational Fluid Dynamics)-technology-based simulation analysis system for an aircraft air circulation refrigeration system, which comprises: a model establishing module which is used for establishing a geometric model of the aircraft air circulation refrigeration system; a region setting module which is used for dividing and setting a control region; a boundary setting module which is used for setting boundary conditions; a grid division module which is used for dividing grids; an equation establishing module which is used for establishing an unsteady state control equation, and establishing control equations for the gas area and the porous medium area by taking working medium gas air in the refrigeration system as an object; a numerical value solving module which is used for carrying out numerical value solving; and a result analysis module which is used for analyzing the simulation result and predicting the refrigeration performance of the aircraftair circulation refrigeration system. By analyzing the temperature field, the pressure field and the flow field distribution in the refrigeration system, the operation mechanism and the fluid characteristics in the refrigeration system are deeply understood, and the method is of great significance to design optimization of the aircraft air circulation refrigeration system.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a simulation analysis system of an aircraft air cycle refrigeration system based on CFD technology. Background technique [0002] The air conditioning system on an aircraft is divided into four subsystems: refrigeration system, temperature control system, air distribution system and pressurization control system. The most important of these is the refrigeration system, and the core of the refrigeration system is the air circulation refrigerator. At present, the two most competitive companies in aircraft manufacturing and research and development in the world are Boeing of the United States and Airbus of Europe. Table 1 summarizes the types of air-cycle refrigerators used on Boeing and Airbus aircraft. At present, the most widely used aircraft air circulation refrigerator adopts a three-wheel or four-wheel booster high-pressure water removal circulation system, which has a...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/20
Inventor 赵艺博肖天雷茅晓晨
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
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