STUDY ON OPTIMIZATION OF IMPELLER PARAMETERS IN CENTRIFUGAL FANS BASED ON THE LEAST SQURE METHOD

WANG Song-ling1; QIAN Hong-wei2; LI Chun-xi1; JIA Ya-kui1; LI Jun11.College of Energy and Power Engintering

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STUDY ON OPTIMIZATION OF IMPELLER PARAMETERS IN CENTRIFUGAL FANS BASED ON THE LEAST SQURE METHOD

更新时间：2025-09-28

- STUDY ON OPTIMIZATION OF IMPELLER PARAMETERS IN CENTRIFUGAL FANS BASED ON THE LEAST SQURE METHOD
- Thermal Power Generation Vol. 38, Issue 12, Pages: 24-28(2009)
- 作者机构：
  
  1. 华北电力大学能源与动力工程学院
  2. 国核电力规划设计研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH432
- Published：2009
- 稿件说明：
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WANG Song-ling1, QIAN Hong-wei2, LI Chun-xi1, et al. STUDY ON OPTIMIZATION OF IMPELLER PARAMETERS IN CENTRIFUGAL FANS BASED ON THE LEAST SQURE METHOD[J]. Thermal power generation, 2009, 38(12): 24-28.
DOI：

WANG Song-ling1, QIAN Hong-wei2, LI Chun-xi1, et al. STUDY ON OPTIMIZATION OF IMPELLER PARAMETERS IN CENTRIFUGAL FANS BASED ON THE LEAST SQURE METHOD[J]. Thermal power generation, 2009, 38(12): 24-28. DOI：

摘要

采用FLUENT软件对G4-73No.8D型离心风机进行了三维数值模拟。在此基础上

采用最小二乘法

对风机叶轮参数进行优化设计

并采用数值模拟对优化结果进行验证。结果表明

通过优化有效降低了因二次流漩涡、风机蜗舌结构、尾流-射流和正冲角造成的能量损失

提高了离心风机性能。优化后风机在设计工况下全压提高3.7%

效率提高0.5%。

Abstract

The three dementional numerical simulation for G4-73 NO.8D centrifugal fans has been carried out by using Fluent software.On this basis

the optimization of design for impeller parameters in centrifugal fans has been made by using the least-square method

and the result of optimization being verified through numerical simulation.Results show that the energy loss caused by the secondary flow vortex

the structure of volute thongue of the fan

the wake-jet

and the positive angle of incidence has been reduced

enhancing the performance of centrifugal fans.After optimization

the total pressure and efficiency of fans have increased 3.7% and 0.5% respectively under the designed operating condition.

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