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TECHNICAL PAPERS: Gas Turbines: Heat Transfer and Turbomachinery

Droplet Generation by Disintegration of Oil Films at the Rim of a Rotating Disk

[+] Author and Article Information
A. Glahn

United Technologies Research Center, 411 Silver Lane, M/S 129-19, East Hartford, CT 06108

S. Busam

Institut für Thermische Strömungsmaschinen, Universität Karlsruhe, Kaiserstr. 12, Baden-Württemberg 76128 Karlsruhe, Germany

M. F. Blair

United Technologies Research Center, 411 Silver Lane, M/S 129-19 East Hartford, CT 06108

K. L. Allard

Pratt & Whitney, 400 Main Street, M/S 163–09, East Hartford, CT 06108

S. Wittig

Institut für Thermische Strömungsmaschinen, Universität Karlsruhe, Kaiserstr. 12, Baden-Württemberg, 76128 Karlsruhe, Germany

J. Eng. Gas Turbines Power 124(1), 117-124 (Feb 01, 2000) (8 pages) doi:10.1115/1.1400753 History: Received November 01, 1999; Revised February 01, 2000
Copyright © 2002 by ASME
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References

Figures

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Droplet disintegration modes; (a) direct drop formation, (b) ligament formation, (c) film formation
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Droplet disintegration map
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Radial droplet diameter distribution (q=2.87.10−5 m3/s,z=0 m,ω=523.6 s−1,T=295 K)
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Characteristic diameters and velocities versus rotational speed (ΔR=25.10−3 m,z=0 m,q=2.872.10−5 m3/s,T=295 K)
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Characteristic diameters versus oil flow rate (ΔR=25⋅10−3 m,z=0 m,ω=523.6 s−1,T=295 K)
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Sauter mean diameter (SMD) versus nondimensional rim speed at different oil flow rates
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Axial droplet diameter distribution (ΔR=25⋅10−3 m,ω=523.6 s−1,q=2.897⋅10−5 m3/s,T=343 K)
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Radial droplet diameter distribution (q=2.87⋅10−5 m3/s,z=0 m,ω=523.6 s−1,T=295 K)
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Droplet flow vector versus operating conditions (q=2.24⋅10−5 to 3.33⋅10−5 m3/s,ΔR=25⋅10−3 m,z=0 m,T=295 K)
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Droplet trajectories (q=2.87⋅10−5 m3/s,z=0 m,ω=523.6 s−1,T=295 K)

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