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Title: The Shape of Turbomachines and the Ongoing Role of Specific Speed
Authors: Gostelow, Jonathan Paul
Rona, Aldo
Mahallati, A.
First Published: 15-Apr-2016
Presented at: International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC 2016), Honolulu, Hawaii, USA
Start Date: 10-Apr-2016
End Date: 15-Apr-2016
Citation: International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, 2016, pp. 1-6 (6)
Abstract: A wide-ranging taxonomy of turbomachinery types is given. The requirements of steam turbines and aircraft engines established a traditional approach to aerodynamic design analyzing orthogonal planes. Computers facilitated this and led to a greater reliance on Computational Fluid Dynamics, offering exciting developments in three dimensional modeling. A balance should be sought between analytical, computational and experimental work. In work on an axial flow pump rig photographic investigations of cavitation over the rotor tip have given insights including the very abrupt collapse of cavitation bubbles. Although essential for supersonic regions blade sweep can also be used effectively at lower speeds and can provide significant performance improvements. Further integration of the design and research communities should lead to an improved understanding and predictability. One such area is the unexpected appearance of streamwise vortices on blade suction surfaces. This provides a good base for understanding blade sweep and its effects.
Version: Post-print
Status: Peer-reviewed
Type: Conference Paper
Rights: Copyright © 2016 the authors. The file associated with this record is distributed under the Creative Commons “Attribution Non-Commercial No Derivatives” licence, further details of which can be found via the following link:
Appears in Collections:Conference Papers & Presentations, Dept. of Engineering

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