ANALYTICAL METHODS FOR CALCULATING FAN AERODYNAMICS

Authors

  • Jan Dostal Aerospace Research and Test Establishment
  • Jan Kuzel Aerospace Research and Test Establishment

DOI:

https://doi.org/10.14311/AP.2015.55.0373

Keywords:

aerodynamics, fan, impeller, blade, total pressure, static pressure, flow tube

Abstract

This paper presents results obtained between 2010 and 2014 in the field of fan aerodynamics at the Department of Composite Technology at the VZLÚ aerospace research and experimental institute in Prague – Letnany. The need for rapid and accurate methods for the preliminary design of blade machinery led to the creation of a mathematical model based on the basic laws of turbomachine aerodynamics. The mathematical model, the derivation of which is briefly described below, has been encoded in a computer programme, which enables the theoretical characteristics of a fan of the designed geometry to be determined rapidly. The validity of the mathematical model is assessed continuously by measuring model fans in the measuring unit, which was developed and manufactured specifically for this purpose. The paper also presents a comparison between measured characteristics and characteristics determined by the mathematical model as the basis for a discussion on possible causes of measured deviations and calculation deviations.

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Author Biographies

Jan Dostal, Aerospace Research and Test Establishment

Department of Composite technology

Research and design

Jan Kuzel, Aerospace Research and Test Establishment

Department of Composite technology

Head of research and design

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Published

2015-12-31

Issue

Section

Articles