Fundamental Studies of Turbulent Boundary Layers with Injection or Suction through Porous Wall : 4th Report, Application of Fundamental Theoretical Analysis to Cascaded Blades with Injection or Suction and Cascade Tests

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概要

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• In the present paper, the authors intend to discuss the applicability of the analytical method for a turbulent boundary layer having pressure gradients with injection or suction treated in the previous papers to the boundary layer on the cascaded blade surfaces with injection or suction all over them and to investigate the influence of the injection or the suction on the cascaded blade characteristics by the cascade tests. The following main results are obtained: (1) The analytical method for a turbulent boundary layer having pressure gradients with injection or suction treated in the previous papers is applicable to the boundary layer on the blade surfaces with injection or suction all over them. (2) Judging from the total pressure loss coefficient, though the optimum injection ratio must be determined after due consideration of the cooling characteristics of the blade,m the available injection ration in the fluid dynamic characteristics if ν_0/u_0≦0.004. And the effect of the suction all over the blade surfaces is found little for a high performance cascade (such as NACA A_3K_7).

• 一般社団法人日本機械学会の論文

著者

• Maeda Toshiyuki

  Faculty Of Engineering Tokyo Metropolitan University

• SHIMURA Kazuyasu

  Faculty of Engineering, Tokyo Metropolitan University

• Shimura Kazuyasu

  Faculty Of Engineering Tokyo Metropolitan University

関連論文

• Fundamental Studies on the Control of Turbulent Boundary Layers : 1st Report, Theoretical and Experimental Analyses of Velocity Profiles and Parameters with and without Adverse Pressure Gradient, with Uniform Suction through a Porous Flat Plate
• Study of Compressible High Speed Gas Flow in Piping System : 3rd Report, Flow Characteristics in Junctions
• A Simplified Method of the Cascade Test
• Fundamental Studies of Turbulent Boundary Layers with Injection or Suction through Porous Walls : 2nd Report, Theoretical and Experimental Analysis of Turbulent Boundary Layers with Injection and Adverse Pressure Gradients
• Fundamental Studies of Turbulent Boundary Layers with Injection or Suction through Porous Wall : 4th Report, Application of Fundamental Theoretical Analysis to Cascaded Blades with Injection or Suction and Cascade Tests
• A Research on Large Deflexion Supersonic Turbine Blade Rows
• Fundamental Studies of Turbulent Boundary Layers with Injection or Suction through Porous Wall : 3rd Report, Investigations on the Separation of Turbulent Boundary Layers in Strong Adverse Pressure Gradients with Injection through Porous Flat Plate

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