Control of Leakage Flow by Triple Squealer Configuration in Axial Flow Turbine
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概要
- 論文の詳細を見る
A new turbine blade tip shape called triple squealer is proposed. This shape is based on the conventional double squealer, and the cavity on the tip surface is divided into two parts by using a third squealer along the blade camber line. The effect of the ratio of groove depth to span (GDS ratio) was investigated. The flat-tip case (baseline case) and double-squealer case were calculated for comparison. In-house, unstructured, 3D, Navier-Stokes, finite volume, multiblock code with DES (Detached Eddy Simulation) as turbulence model was used to calculate the flow field around the tip. The computational results show that the reduction in the mass flow rate of the leakage flow for the triple squealer is 15.69% compared to the flat-tip case.
- 2010-05-04
著者
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IBRAHIM Mohammed
Department of Aerospace Engineering, Nagoya University
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MORI Koichi
Department of Aerospace Engineering, Nagoya University
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NAKAMURA Yoshiaki
Department of Aerospace Engineering, Nagoya University
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EL-GHANDOUR Mohamed
Department of Aerospace Engineering, Nagoya University
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NAKAMURA Yoshiaki
Aerospace Engineering Department, Graduate School of Engineering, Nagoya University
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Ibrahim Mohammed
Department Of Aerospace Engineering Nagoya University
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Nakamura Yoshiaki
Department Of Aerospace Engineering Nagoya University
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El-ghandour Mohamed
Department Of Aerospace Engineering Nagoya University
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Ibrahim Mohammed
Aerospace Engineering Department Faculty Of Engineering University Of Cairo
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Nakamura Yoshiaki
Aerospace Engineering Department Graduate School Of Engineering Nagoya University
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Mori Koichi
Aerospace Engineering Department Graduate School Of Engineering Nagoya University
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Nakamura Yoshiaki
Department Of Aerospace Eng. Nagoya University
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Nakamura Yoshiaki
Department Of Aeronautical Engineering Nagoya University
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IBRAHIM Mohammed
Department of Aerospace Engineering ,Nagoya University
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