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TECHNICAL PAPERS

The Influence of Technical Surface Roughness Caused by Precision Forging on the Flow Around a Highly Loaded Compressor Cascade

[+] Author and Article Information
Robert Leipold, Matthias Boese, Leonhard Fottner

Institut für Strahlantriebe, Universität der Bundeswehr München, D-85577 Neubiberg, Germany

J. Turbomach 122(3), 416-424 (Feb 01, 1999) (9 pages) doi:10.1115/1.1302286 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Nikuradse, J., 1933, “Strömungsgesetze in rauhen Rohren,” Beilage zu Forschung auf dem Gebiet des Ingenieurwesens, Forschungsheft 361 Ausgabe B Band 4.
Schlichting, H., 1936, “Experimentelle Untersuchungen zum Rauhigkeitsproblem,” Ingenieur-Archiv 7. Band, 1. Heft.
Bammert, K., and Sandstede, H., 1973, “Strömungsverluste durch die Oberflächenrauhigkeit der Schaufeln einer Turbine,” VDI-Berichte, No. 193.
Bammert, K., and Sandstede, H., 1972, “Measurements Concerning the Influence of Surface Roughness and Profile Changes on the Performance of Gas Turbines,” ASME Paper No. 72-GT-34.
Bammert, K., and Sandstede, H., 1975, “Influences of Manufacturing Tolerances and Surface Roughness of Blades on the Performance of Turbines,” ASME Paper No. 75-GT-35.
Bammert, K., and Woelk, G.-U., 1976, “Der Einfluß der Profilrauhigkeit auf die Strömungsverluste von Axialverdichtern,” VDI-Berichte No. 264.
Bammert, K., and Woelk, G.-U., 1979, “The Influence of Blading Surface Roughness on the Aerodynamic Behavior and Characteristic of an Axial Compressor,” ASME Paper No. 79-GT-102.
Suder,  K. L., Chima,  R. V., Strazisar,  A. J., and Roberts,  W. B., 1995, “The Effect of Adding Roughness and Thickness to a Transonic Axial Compressor Rotor,” ASME J. Turbomach., 117, pp. 491–505.
Bammert,  K., and Sandstede,  H., 1980, “Measurements of the Boundary Layer Development Along a Turbine Blade With Rough Surfaces,” ASME J. Eng. Power, 102, No. 4, pp. 978–983.
Bammert, K., and Milsch, R., 1972, “Das Verhalten der Grenzschicht an rauhen Verdichterschaufeln,” Sonderdruck Forschung im Ingenieurwesen, B. 38 No. 4.
Saxena, V. M., Shirvastava, K. D., and Agrawal, P. K., 1980, “Effect of Surface Roughness Over the Blade in Compressor Cascade,” IE (I) 61 .
Sturm, W., and Fottner, L., 1985, “The High Speed Cascade Wind Tunnel of the German Armed Forces University Munich,” 8th Symposium on Measuring Techniques for Transonic and Supersonic Flows in Cascades and Turbomachines, Genoa.
Leipold, R., and Fottner, L., 1998, “A Measurement Technique to Investigate the Influence of Surface Roughness on the Flow Around a Highly Loaded Compressor Cascade,” 14th Symposium on Measuring Techniques in Transonic and Supersonic Flow in Cascades and Turbomachines, Limerick.
Hübner, J., 1996, “Experimentelle und theoretische Untersuchung der wesentlichen Einflußfaktoren auf die Spalt- und Sekundärströmung in Verdichtergittern,” PhD Thesis, Universität der Bundeswehr München.
Schodl, R., 1978, “Entwicklung des Laser-Zwei-Fokus-Verfahrens für die berührungslose Messung der Strömungsvektoren, insbesondere in Turbomaschinen,” Ph.D. Thesis, Technische Hochschule Aachen.

Figures

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High-speed cascade wind tunnel
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NACA 65 K48 cascade mounted in test section
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Three-dimensional topology of applied sheet of copper
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Location of measurement planes
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Influence of Reynolds number on isentropic Mach number
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Influence of Reynolds number on local total pressure loss
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Influence of Reynolds number on total pressure loss coefficient
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Influence of Reynolds number on boundary layer parameters
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Influence of Reynolds number on distribution of turbulence in boundary layer
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Isentropic Mach number and wake traverse results for a variation of inlet angle
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Total pressure loss coefficient difference versus inlet flow angle
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Influence of inlet flow angle on boundary layer parameters
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Influence of inlet flow angle on distribution of turbulence in boundary layer

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