Numerical Simulation of Internal Cooling Effect of Gas Turbine Blades using Twisted Tape Inserts

Kini, Chandrakant R and Kamat, Harishkumar and Shenoy, Satish B (2016) Numerical Simulation of Internal Cooling Effect of Gas Turbine Blades using Twisted Tape Inserts. Indian Journal of Science and Technology, 9 (31). ISSN 0974-6846

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Abstract

Objectives: In gas turbine blades, heat transmission can be improved by using twisted tape inserts. In the present paper, cooling effect of a gas turbine blade can be improved by using suit able twisted tape configurations. Methods/Statistical Analysis: It was found from validation test that the twisted tape is a favourable technique for heat transfer augmentation. It was also found that heat transfer can be enhanced in the cases with suitable width ratio of twisted tapes. CFD Results show that the results are satisfactory when compared with the reference journal paper. Simulations are carried out for different width ratios of twisted tape inserts. Findings: Computation results showed that by employing twisted tape inserts of width ratio (W) = 0.3 provides better cooling effect compared to the others. The blade temperature is decreased by 34% at the leading edge. Application/Improvements: All these established that influence of cooling over gas turbine blade particularly at the leading edge can be enhanced with suitable twisted tape insert configurations

Item Type: Article
Uncontrolled Keywords: Leading Edge, Numerical Analysis, Turbine Blade Cooling, Twisted Tape Insert
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 01 Sep 2016 15:06
Last Modified: 01 Sep 2016 15:06
URI: http://eprints.manipal.edu/id/eprint/146900

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