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Thermal analysis methods for aero-engine components

An aero-engine and thermal analysis technology, applied in the field of aero-engines, can solve problems that affect the accuracy of thermal analysis calculation results and do not consider the influence of radiation

Active Publication Date: 2019-01-04
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

In previous thermal analysis work, the influence of radiation on heat transfer was usually not considered, which directly affected the accuracy of thermal analysis calculation results

Method used

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  • Thermal analysis methods for aero-engine components
  • Thermal analysis methods for aero-engine components
  • Thermal analysis methods for aero-engine components

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Embodiment Construction

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The embodiments of the pre...

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Abstract

The invention discloses a thermal analysis method of an aero-engine component, which comprises the following steps: a model is established by comprehensively considering the structure of the aero-engine component, the radiation heat transfer in the flow form, the convection heat transfer and the heat conduction factors; according to the model, the boundary conditions of heat transfer, geometricaldimensions, physical parameters and flow parameters are obtained; according to the boundary conditions, geometrical dimensions, physical parameters and flow parameters, the wall temperature of hot end, wall temperature of cold end, surface temperature of sandwich material, outlet temperature of sandwich chamber, average temperature of sandwich chamber and heat flux are calculated. The invention comprehensively considers the influence of radiation heat transfer, convection heat transfer and heat conduction of high-temperature components, and provides and verifies the calculation method and program realization considering radiation heat transfer, thereby solving the thermal analysis problem of engine components considering radiation effect under high-temperature environment.

Description

technical field [0001] The present invention is in the technical field of aero-engines, in particular to a thermal analysis method for aero-engine components. Background technique [0002] With the increase of the thrust-to-weight ratio of aero-engines, the working temperature of engine components is getting higher and higher. In this high-temperature environment, radiation has a great influence on the temperature distribution of components. Therefore, when analyzing the temperature distribution of high-temperature components, it is necessary to comprehensively Considering the effects of radiation heat transfer, convective heat transfer and thermal conductivity, relatively reasonable results can be obtained. In the past thermal analysis work, the influence of radiation on heat transfer is usually not considered, which directly affects the accuracy of thermal analysis calculation results. [0003] Therefore, a technical solution is desired to overcome or at least alleviate a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2119/08G06F30/15G06F30/20Y02T90/00
Inventor 杜欣
Owner AECC SHENYANG ENGINE RES INST
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