Leakage and Thermal Characterisation of Canted Labyrinth Seals

Mohana Rao

Leakage and Thermal Characterisation of Canted Labyrinth Seals

Mohana Rao * §

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Leakage and Thermal Characterisation of Canted Labyrinth Seals

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Abstract

Labyrinth seals are the simple and most commonly used rotating seal in cold (compressor) and hot (turbine) regions of gas turbine engines. In order to achieve successful engine design estimating accurate leakage flow rates, windage heating and heat transfer coefficients are critical for rotor dynamic stability. The windage effect inside the flow creates direct loss of power also increase fluid temperature. In this paper numerical simulation of a canted stepped labyrinth seal is performed using commercial Fluent CFD code with 2D axisymmetric is used to study leakage flow and windage heating for various seal clearances for solid (smooth) stator land geometry. The 2D model is subsequently used to determine average heat transfer coefficients on the rotor and stator for heating and cooling situations.

References

8 Cites in Article

Reference Format

J Denecke,K Dullenkopf,S Wittig,H-J Bauer (2009). Experimental Investigation of the Total Temperature Increase and Swirl Development in Rotating Labyrinth Seals.
J Millward,M Edwards (1996). Windage Heating of Air Passing Through Labyrinth Seals.
W Wroblewski,K Bochon (2015). Conjugate heat transfer analysis of the tip seal in the counter rotating low pressure turbine.
R Buggeln,H Mcdonald (2008). Development of Navire-strokes analysis for Labyrinth seals.
L Donald,Thomas Tipton,Rodney Scott,Vogel (2013). Analytical and Experimental Development of a Design Model for Labyrinth Seals.
Piotr Lampart,Sergey Yershov,Andrey Rusanov,Mariusz Szymaniak (2000). Tip leakage / Main flow interactions in multi-stage HP Turbines with shortheight blading.
D Frączek,W Wróblewski,T Chmielniak (2015). INFLUENCE OF HONEYCOMB RUBBING ON TIP SEALPERFORMANCE OF TURBINE ROTOR.
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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Mohana Rao. 2018. "Leakage and Thermal Characterisation of Canted Labyrinth Seals". Global Journal of Research in Engineering, Global Journal of Research in Engineering - A : Mechanical & Mechanics GJRE-A Volume 17 (GJRE Volume 17 Issue A7).

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GJRE Volume 17 Issue A7

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

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Classification

GJRE-A Classification FOR Code: 091399p

Submission ReceivedDecember 8, 2016
Peer Review Double Blind
Handling Editor
Accepted January 5, 2017
Published January 15, 2017

Version of record

v1.2

Issue date

January 22, 2018

Language

English

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Article Matrices

Total Score: 107

Country: India

Subject: Global Journal of Research in Engineering

Authors: Mohana Rao, Dr. Manzoor Husain (PhD/Dr. count: 1)

View Count (all-time): 370

Total Views (Real + Logic): 1484

Total Downloads (simulated): 93

Publish Date: 2017 01, Sun

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Total Views: 1.5K

Total Downloads: 93

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