Method for calculating resistance of axis type centrifugal ventilator

A resistance calculation and ventilator technology, applied in instruments, sustainable transportation, design optimization/simulation, etc., to achieve the effects of shortening calculation costs and calculation cycles, strong applicability, and simple calculation methods

Active Publication Date: 2021-01-22
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

[0005] The purpose of this application is to provide a method for calculating the resistance of an axial centrifugal ventilator to solve or alleviate at least one of the problems in the background art

Method used

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  • Method for calculating resistance of axis type centrifugal ventilator
  • Method for calculating resistance of axis type centrifugal ventilator
  • Method for calculating resistance of axis type centrifugal ventilator

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.

[0033] The method for calculating the resistance of an axial centrifugal fan provided by the present application mainly includes the calculation of the resistance of the aperture unit and the calculation of the total resistance of the axial centrifugal fan (after the resistance of multiple aperture units).

[0034] Such as figure 1 As shown, the method for calculating the resistance of the axial centrifugal ventilator of the present application includes the following steps:

[0035] Step 1: Build the resistance feature unit network architecture

[0036] According to the structural form of the axial centrifugal fan, the arrangement and connection of the aperture units are determined from the bottom up or top...

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Abstract

The invention provides an axis type centrifugal ventilator resistance calculation method which comprises the following steps: determining the arrangement of aperture units of an axis type centrifugalventilator according to the structural form of the axis type centrifugal ventilator and the airflow direction of airflow passing through the axis type centrifugal ventilator, and constructing a resistance characteristic unit network framework; determining parameter values of the corresponding resistance characteristic units according to the structure parameters and the operation parameters of theresistance characteristic units, wherein the working environment of the axis type centrifugal ventilator is determined; and calculating the resistance of the aperture units and the overall resistanceof the axis type centrifugal ventilator with the plurality of aperture units according to the parameter values in the working environment. According to the method provided by the invention, the resistance theoretical expression of the axis type centrifugal ventilator can be directly obtained through network architecture construction according to the structural characteristics and sizes of the axistype centrifugal ventilator, and the calculation method is simple, efficient and suitable for resistance calculation under all working conditions.

Description

technical field [0001] The application belongs to the technical field of axial centrifugal ventilators, and in particular relates to a resistance calculation method of axial centrifugal ventilators. Background technique [0002] Axial centrifugal ventilator is the most widely used ventilator in aero-engine, and its resistance characteristic is the most important design index of lubrication ventilation system. At present, the methods for obtaining the resistance of axial centrifugal ventilator mainly include simulation analysis method and test fitting method. The simulation analysis method mainly uses computer software to simulate the operating conditions of the axial centrifugal ventilator to obtain its resistance characteristics. It is necessary to use CAD software for modeling, mesh division software for mesh division, and CFD software for simulation analysis. Obtain the resistance of the axial centrifugal ventilator at a specific speed and environmental conditions; the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/14
CPCG06F30/20G06F2119/14Y02T90/00
Inventor 荆帅谷俊韩金在刘向坤张鹏发王铭章董云苏常青
Owner AECC SHENYANG ENGINE RES INST
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