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Physics of Fluids
The propulsion shafting whirling vibration causes non-uniform dynamic changes in the rotor tip clearance, which directly have a significant influence on the excitation force and vortex dynamic characteristics of the pump-jet propulsor. In the current study, based on improved delay detached eddy simulation, the influence of non-uniform blade tip ...
Donglin Zou +5 more
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The propulsion shafting whirling vibration causes non-uniform dynamic changes in the rotor tip clearance, which directly have a significant influence on the excitation force and vortex dynamic characteristics of the pump-jet propulsor. In the current study, based on improved delay detached eddy simulation, the influence of non-uniform blade tip ...
Donglin Zou +5 more
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Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2018
The effects of axially non-uniform clearances on the tip leakage flow and aerodynamic performance in a linear turbine cascade with a cavity squealer tip were investigated in this study with the objective of improving the flow loss and tip flow field structure.
Shaowen Chen +4 more
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The effects of axially non-uniform clearances on the tip leakage flow and aerodynamic performance in a linear turbine cascade with a cavity squealer tip were investigated in this study with the objective of improving the flow loss and tip flow field structure.
Shaowen Chen +4 more
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47th AIAA Aerospace Sciences Meeting including The New Horizons Forum and Aerospace Exposition, 2009
This paper presents an experimental investigation of effects of axially non-uniform tip clearances on aerodynamic performance of a compressor cascade. The tests were performed in a low-speed large-scale cascade with different axially non-uniform tip clearances while the flow filed at an exit of the cascade was measured at three incidence angles of -5o,
Hongwei Ma, Zhaofeng Wang, Jun Zhang
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This paper presents an experimental investigation of effects of axially non-uniform tip clearances on aerodynamic performance of a compressor cascade. The tests were performed in a low-speed large-scale cascade with different axially non-uniform tip clearances while the flow filed at an exit of the cascade was measured at three incidence angles of -5o,
Hongwei Ma, Zhaofeng Wang, Jun Zhang
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Journal of Fluid Machinery, 2008
Flow structures in an axial compressor with a non-uniform tip clearance were predicted by solving a simple prediction method. For more reliable prediction at the off-design condition, off-design flow characteristics such as loss and flow blockage were incorporated in the model.
Young-Seok Kang +2 more
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Flow structures in an axial compressor with a non-uniform tip clearance were predicted by solving a simple prediction method. For more reliable prediction at the off-design condition, off-design flow characteristics such as loss and flow blockage were incorporated in the model.
Young-Seok Kang +2 more
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Journal of Thermal Science, 2010
This paper presents an experimental investigation of effects of one kind of tangentially non-uniform tip clearance on the flow field at an exit of a compressor cascade passage. The tests were performed in a low-speed large-scale cascade with the uniform tip clearance and the non-uniform clearance.
Hongwei Ma, Jinghui Zhang, Jun Zhang
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This paper presents an experimental investigation of effects of one kind of tangentially non-uniform tip clearance on the flow field at an exit of a compressor cascade passage. The tests were performed in a low-speed large-scale cascade with the uniform tip clearance and the non-uniform clearance.
Hongwei Ma, Jinghui Zhang, Jun Zhang
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Some effects of non-axisymmetric tip clearance layout on axial compressor aerodynamics
Proceedings of the Institution of mechanical engineers. Part A, journal of power and energy, 2021A steady and unsteady numerical research is carried out to explore some effects of a specific non-axisymmetric tip clearance layout on the overall performance and stability of an axial compressor stage.
Haohao Zhang +4 more
semanticscholar +1 more source