Influence of tip clearance on the turbulent aerodynamics of axial flow fan under off design conditions

Praveen Kumar Akula, B. Singh, M. Manikandan, G. Srinivas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Compressor is a dynamic machine with complicated 3d aerodynamics. Dynamics creates an uncertain environment and induces the flow with instabilities, resulting in reduced performance. Motion being circumferential, flow is also subjected to rotational accelerations. Added to these complications are the tip gap and related vortex aerodynamics in the tip region, which also influence the passage flow of the rotor and thus complicates the flow field. The result of these implications is the generation of the turbulence in the flow field. Turbulence is a fluctuating characteristic of the flow, which extracts its energy from the mean flow field. Energy consumed by the turbulent nature of flow is a waste. Therefore it is very much important to understand about the influence of the turbulence and related kinetic energy compressor aerodynamics. In this paper work is presented to understand about the turbulence under such varying geometry conditions of flow, as well as blade. Results of nature of the turbulence and its growth are discussed for varying mass flow rates and different tip gaps of acceptable range.

Original languageEnglish
Title of host publicationMechanical and Aerospace Engineering
Pages223-227
Number of pages5
DOIs
Publication statusPublished - 31-12-2012
Externally publishedYes
Event2012 3rd International Conference on Mechanical and Aerospace Engineering, ICMAE 2012 - Paris, France
Duration: 07-07-201208-07-2012

Publication series

NameApplied Mechanics and Materials
Volume232
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2012 3rd International Conference on Mechanical and Aerospace Engineering, ICMAE 2012
CountryFrance
CityParis
Period07-07-1208-07-12

Fingerprint

Axial flow
Fans
Aerodynamics
Turbulence
Flow fields
Compressors
Kinetic energy
Vortex flow
Rotors
Flow rate
Geometry

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Akula, P. K., Singh, B., Manikandan, M., & Srinivas, G. (2012). Influence of tip clearance on the turbulent aerodynamics of axial flow fan under off design conditions. In Mechanical and Aerospace Engineering (pp. 223-227). (Applied Mechanics and Materials; Vol. 232). https://doi.org/10.4028/www.scientific.net/AMM.232.223
Akula, Praveen Kumar ; Singh, B. ; Manikandan, M. ; Srinivas, G. / Influence of tip clearance on the turbulent aerodynamics of axial flow fan under off design conditions. Mechanical and Aerospace Engineering. 2012. pp. 223-227 (Applied Mechanics and Materials).
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Akula, PK, Singh, B, Manikandan, M & Srinivas, G 2012, Influence of tip clearance on the turbulent aerodynamics of axial flow fan under off design conditions. in Mechanical and Aerospace Engineering. Applied Mechanics and Materials, vol. 232, pp. 223-227, 2012 3rd International Conference on Mechanical and Aerospace Engineering, ICMAE 2012, Paris, France, 07-07-12. https://doi.org/10.4028/www.scientific.net/AMM.232.223

Influence of tip clearance on the turbulent aerodynamics of axial flow fan under off design conditions. / Akula, Praveen Kumar; Singh, B.; Manikandan, M.; Srinivas, G.

Mechanical and Aerospace Engineering. 2012. p. 223-227 (Applied Mechanics and Materials; Vol. 232).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Akula PK, Singh B, Manikandan M, Srinivas G. Influence of tip clearance on the turbulent aerodynamics of axial flow fan under off design conditions. In Mechanical and Aerospace Engineering. 2012. p. 223-227. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.232.223