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Analysis of Distribution of Thrust, Torque and Efficiency of a Constant Chord, Constant Pitch C.R.P. Fan by H.E.S. Method

Authors: Morteza Abbaszadeh, Parvin Nikpoorparizi, Mina Shahrooz


For the first time since 1940 and presentation of theodorson-s theory, distribution of thrust, torque and efficiency along the blade of a counter rotating propeller axial fan was studied with a novel method in this research. A constant chord, constant pitch symmetric fan was investigated with Reynolds Stress Turbulence method in this project and H.E.S. method was utilized to obtain distribution profiles from C.F.D. tests outcome. C.F.D. test results were validated by estimation from Playlic-s analytical method. Final results proved ability of H.E.S. method to obtain distribution profiles from C.F.D test results and demonstrated interesting facts about effects of solidity and differences between distributions in front and rear section.

Keywords: C.F.D Test, Counter Rotating Propeller, H.E.S. Method, R.S.M. Method

Digital Object Identifier (DOI):

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[1] C.N.H Lock, A graphical method of calculation the performance of an airscrew, 1935, British A.R.C. report and memoranda 1675.
[2] G. Bull and G. Bennett, propulsive efficiency and aircraft drag determined from steady state flight test data, Mississippi state university department of aerospace engineering, society of automotive engineers, 1985.
[3] S. Slavik, preliminary determination of propeller aerodynamic characteristics for small aero planes, Actapolytechnica, VOl.44, No.2.2004.
[4] E.P. Hartman and D. Biermann, the aerodynamic characteristics of full scale propellers having 2, 3 and 4 blades of Clark Y and R.A.F. airfoil sections, 1938, technical report No.640 N.A.C.A.
[5] M. Abbaszadeh, R. Shabani, M. Shahrooz, P. Nikpur, presentation of horizontal element separation for analyzing aerial propellers, 2011, 10th Iranian aerospace society conference.
[6] T. Kokturk, design and performance analysis of a revirsable axial flow fan, 2005 M.S. Thesis university of east Mediterranea, departeman of mechanical engineering.
[7] T. Teodorson, The theory of propellers determination of the circulation function and the mass coefficient for dual rotating propellers, 1939, N.A.C.A report No. 775.
[8] W.f. wolfe, S. Stuart. C.F.D calculations of s809 aerodynamic characteristics, AIAA-97-0937.