Axial Flow Compressor Noise Studies Pdf
Centrifugal Compressor Case Study. 2) Flow-induced turbulence can occur at flow past. Noise was also a concern in the compressor buildings after.
. Part of the book series (NNFM, volume 95) Abstract The secondary flow over the impeller blade tips of axial fans is important for the aerodynamic and acoustic performance of the fans. Pressure coefficient and efficiency drop, and the usable range of the performance characteristic is diminished as the rotor flow stalls at higher flow rates.
Ac Compressor Noise
By applying active flow control in the tip region of the impeller, it is possible to reduce the negative effects of the tip clearance flow. In the present paper, steady air injection into the tip clearance gap is investigated. Three different air injection configurations are studied. Two configurations use up to 24 separate slit nozzles, which are evenly distributed over the circumference of the casing. In the third injection configuration, the individual nozzles are replaced by a continuous circumferential slit.
Thomas G Sofrin
Cite this paper as: Neuhaus L., Neise W. (2007) Active Control to Improve the Aerodynamic Performance and Reduce the Tip Clearance Noise of Axial Turbomachines with Steady Air Injection into the Tip Clearance Gap. (eds) Active Flow Control. Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), vol 95.
Springer, Berlin, Heidelberg. DOI.
Air Compressor Noise
Publisher Name Springer, Berlin, Heidelberg. Print ISBN 978-3-540-71438-5. Online ISBN 978-3-540-71439-2. eBook Packages.
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