On the Racing Power of Impellers

スポンサーリンク

概要

• 論文の詳細を見る

• Measurements of the torque consumed by an impeller rotating in a closed vessel were taken under various geometrical configurations by means of a torsion balance technique. The experimental results give the following conclusions : (1) When the boss ratio has a value between zero and 0.6,the resisting coefficient takes a constant value approximately. (2) The resisting coefficient takes the maximum value for a certain number of blades of the impeller and varies in proportion to (sinθ)^<1/2> (θ≐̸0) where θ is the attack angle of blades. (3) The relation between the resisting coefficient C_f and Reynolds number R_6 in a smooth vessel is given by C_f ∽ R_6^<-1/6>. (4) When the width of the impeller is large, the resisting coefficient of the impeller is identical with that of a disc with ribs on both sides of the surfaces. (5) The effect of the number of blades disappears when the impeller has a shroud and the angle of blade is larger than 45 degrees.

• 一般社団法人日本機械学会の論文

著者

• Furuya Yoshimasa

  Faculty Of Engineering Nagoya University

• WATABE Komei

  Research Associate Faculty of Engineering, Nagoya University

• Watabe Komei

  Research Associate Faculty Of Engineering Nagoya University

• FURUYA Yoshimasa

  Faculty of Engineering , Nagoya University

関連論文

• The spanwise non-uniformity of nominally two-dimensional turbulent boundary layer : 4th Report, Uniformalization of flow field and Comparison of various flows
• The spanwise non-uniformity of nominally two-dimensional turbulent boundary layer : 3rd Report, Influence of the streamwise vortices arising from the protrusion
• The spanwise non-uniformity of nominally two-dimensional turbulent boundary layer : 2nd Report Wall shear stress and flow field
• Experiments on the Relatively Thick, Turbulent Boundary Layers on a Rotating Cylinder in Axial Flows : 2nd Report, Flows under Pressure Gradients
• Turbulent Boundary Layers on plates Roughened by Wires at Equal Intervals
• Turbulent Boundary-Layer along a Streamwise Bar of a Rectangular Cross Section Placed on a Flat Plate
• Turbulent Boundary-Layer along a Streamwise Bar of a Square Cross Section Placed on a Flat Plate
• Turbulent Boundary Layers on Wire-Screen Roughnesses
• The Loss of Flow in the Conical Diffusers with Suction at the Entrance
• On the Racing Power of Impellers
• The Experiment on the Skewed Boundary Layer on a Rotating Body
• The spanwise non-uniformity of nominally two-dimensional turbulent boundary layer : 1st Report Characteristics of spanwise velocity distribution
• Performance of the Two-Dimensional Diffusers with Suction at the Entrance
• An Experimental Investigation of the Skewed Boundary Layer on a Rotating Body (2nd Report)
• The Rotating Flows in a Vaneless Diffuser Having Two Parallel Discs
• Pressure Recovery Efficiency of Short Conical Diffusers and of Roughened Diffusers

もっと見る 閉じる

スポンサーリンク