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Optimization of film hole row locations of a nozzle guide vane using network approach

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Abstract

Fluid–thermal network simulations have been performed to optimize the each film hole row location of a high-pressure guide vane. In the present work, the optimized row locations were identified to minimize the coolant flow with different number of film holes configuration subjected to almost uniform surface temperature distribution on the nozzle guide vane. FlownexR2017 software was used to identify the optimal row location of a typical film-cooled vane. The results show that it is a useful simulation tool to obtain reduced pressure drop of film hole row in a relatively short turnaround time.

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Abbreviations

d:

Film hole diameter (mm)

V m :

Mainstream velocity (m s−1)

\(\dot{m}\) :

Coolant mass flow rate (kg s−1)

GA:

Genetic algorithm

NGV:

Nozzle guide vane

N:

Number of holes

SS:

Suction surface

PS:

Pressure surface

1D:

One-dimensional

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Authors and Affiliations

  1. Turbomachines Laboratory, Department of Mechanical Engineering, Indian Institute of Technology, Madras, Chennai, India

    Pol Reddy Kukutla & B. V. S. S. S. Prasad

  2. Department of Mechanical Engineering, Sree Vidyanikethan Engineering College (Autonomous), A.Rangampet, Tirupati, Andhra Pradesh, India

    Pol Reddy Kukutla, Hariprasad Tarigonda & D. Raghurami Reddy

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  1. Pol Reddy Kukutla
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  2. B. V. S. S. S. Prasad
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  3. Hariprasad Tarigonda
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  4. D. Raghurami Reddy
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Correspondence to Pol Reddy Kukutla.

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Kukutla, P.R., Prasad, B.V.S.S.S., Tarigonda, H. et al. Optimization of film hole row locations of a nozzle guide vane using network approach. J Therm Anal Calorim 145, 2661–2674 (2021). https://doi.org/10.1007/s10973-020-09841-2

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  • DOI: https://doi.org/10.1007/s10973-020-09841-2

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