Experimental and theoretical data are presented for two interchangeable swirl brakes designed in connection with the Space Shuttle Main Engine (SSME) Alternate Turbopump Development (ATD) High-Pressure Fuel Turbopump (HPFTP) program. The experimental data includes rotordynamic data for a extensive variation of test variables. Comparison of the swirl brake performance revealed that a nonaerodynamic swirl brake design proved as efficient and at times better than an aerodynamic design. For this reason a theoretical investigation using computational fluid dynamics (CFD) was recently carried out. This modeling focused on predicting the seal inlet swirl ratio which is the primary swirl brake performance parameter. The nonaerodynamic swirl brake showed superior performance for a variety of test variable conditions. Strong separation vortices within the swirl vanes are the main reason for this finding.
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April 2001
Technical Papers
Experimental and Theoretical Comparison of Two Swirl Brake Designs
K. K. Nielsen,
K. K. Nielsen
Machinery Dynamics Group, O̸degaard & Danneskiold-Samso̸e A/S, Copenhagen, Denmark
11
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D. W. Childs,
D. W. Childs
Turbomachinery Laboratory, Mechanical Engineering Department, Texas A&M University, College Station, TX 77843
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C. M. Myllerup
C. M. Myllerup
Machinery Dynamics Group, O̸degaard & Danneskiold-Samso̸e A/S, Copenhagen, Denmark
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K. K. Nielsen
11
Machinery Dynamics Group, O̸degaard & Danneskiold-Samso̸e A/S, Copenhagen, Denmark
D. W. Childs
Turbomachinery Laboratory, Mechanical Engineering Department, Texas A&M University, College Station, TX 77843
C. M. Myllerup
Machinery Dynamics Group, O̸degaard & Danneskiold-Samso̸e A/S, Copenhagen, Denmark
Contributed by the International Gas Turbine Institute and presented at the 45th International Gas Turbine and Aeroengine Congress and Exhibition, Munich, Germany, May 8–11, 2000. Manuscript received by the International Gas Turbine Institute February 2000. Paper No. 2000-GT-399. Review Chair: D. Ballal.
J. Turbomach. Apr 2001, 123(2): 353-358 (6 pages)
Published Online: February 1, 2000
Article history
Received:
February 1, 2000
Citation
Nielsen, K. K., Childs, D. W., and Myllerup, C. M. (February 1, 2000). "Experimental and Theoretical Comparison of Two Swirl Brake Designs ." ASME. J. Turbomach. April 2001; 123(2): 353–358. https://doi.org/10.1115/1.1354140
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