Radiator performance evaluation method under air inlet distortion condition

A radiator and performance technology, applied in the field of radiator performance evaluation, can solve the problems of design and manufacturing rework, the radiator cannot meet the performance requirements, and the radiator test performance deviates greatly. Calculate the effect with high accuracy

Pending Publication Date: 2022-05-31
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in actual installation and use, on the windward side of the cold side of the radiator, the air intake is non-uniform (with intake distortion) under many working conditions, resulting in a large deviation between the actual installed performance of the radiator and the manufacturer's test performance, and even the radiator cannot Problems meeting performance requirements, resulting in design and manufacturing rework

Method used

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  • Radiator performance evaluation method under air inlet distortion condition
  • Radiator performance evaluation method under air inlet distortion condition
  • Radiator performance evaluation method under air inlet distortion condition

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Embodiment Construction

[0043] In order to make the implementation purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. 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 application. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present application, but should not be construed as a limitation to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present ap...

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Abstract

The invention belongs to the field of aircraft system design, and particularly relates to a radiator performance evaluation method under an air inlet distortion condition. Comprising the steps of 1, obtaining radiator wind resistance characteristic and heat exchange characteristic data; 2, calculating an air inlet distortion index under the working condition of the radiator; 3, calculating the wind resistance characteristic and the heat exchange characteristic of the radiator after correction; and 4, drawing a new wind resistance characteristic curve and a new heat exchange characteristic curve. According to the radiator performance evaluation method under the air inlet distortion condition, the wind resistance characteristic and the heat exchange characteristic of the oil cooling radiator under the non-uniform air inlet condition can be corrected, the performance calculation deviation caused by evaluation according to the uniform air inlet condition is eliminated, and the situation that the performance of a cooling system does not reach the standard actually is avoided. The method is simple in principle, high in calculation accuracy and high in engineering feasibility.

Description

technical field [0001] The present application belongs to the field of aircraft system design, and particularly relates to a method for evaluating the performance of a radiator under the condition of intake air distortion. Background technique [0002] Air radiators are widely used in the field of engineering. Air radiators are used as refrigerants. On aircraft, according to the hot side medium, there are air lubricating oil radiators, air fuel radiators, and air coolant radiators. The performance calculation of air radiators usually adopts classical heat transfer formulas or engineering experience methods based on experimental data. The flow resistance characteristics and heat transfer characteristics of radiators, as the basic performance data of such products, are generally adopted by their manufacturers. The ground ventilation test was obtained. During the test, the air intake from the cold side of the radiator was provided by a blower or a pressure air storage tank, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/28G06F113/08G06F119/08
CPCG06F30/15G06F30/28G06F2119/08G06F2113/08Y02T90/00
Inventor 吴宇周红
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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