Understanding of an Effect of Plenum Volume of a Low Porosity Bend Skewed Casing Treatment on the Performance of Single-Stage Transonic Axial Flow Compressor

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Understanding of an Effect of Plenum Volume of a Low Porosity Bend Skewed Casing Treatment on the Performance of Single-Stage Transonic Axial Flow Compressor

Pitroda, Darshan P. / Alone, Dilipkumar Bhanudasji / Choksi, Harish S.

The present study intends to improve the performance of transonic axial flow compressor stage and its operating range by implementing passive flow control technique, a Casing Treatment. A plenum chamber with two different volumes placed above the bend skewed slots was implemented. The objective was to understand the effect of plenum volume on the performance of transonic axial flow compressor retrofitted with bend skewed casing treatment. The porosity of the selected bend skewed casing treatment was 33%. A detailed steady-state CFD analysis has been carried out for the compressor operating at six different speeds. Axial location of the casing treatment above the rotor tip was chosen based upon the previous experiments reported in literature [1]. For the same axial location and porosity, plenum chamber depth was varied from zero depth to full plenum depth to understand effect of a plenum volume. The results were compared with baseline model with solid casing wall. Significant improvement in stall margin was observed at all rotational speeds. Minor deviation was observed in stage total pressure ratio with reduction in efficiency at design speed.

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Dokumentinformationen

Titel :

Understanding of an Effect of Plenum Volume of a Low Porosity Bend Skewed Casing Treatment on the Performance of Single-Stage Transonic Axial Flow Compressor

Weitere Titelangaben:

Lect.Notes Mechanical Engineering

Beteiligte:

Mistry, Chetan S. (Herausgeber:in) / Kumar, S. Kishore (Herausgeber:in) / Raghunandan, B. N. (Herausgeber:in) / Sivaramakrishna, Gullapalli (Herausgeber:in) / Pitroda, Darshan P. (Autor:in) / Alone, Dilipkumar Bhanudasji (Autor:in) / Choksi, Harish S. (Autor:in)

Erschienen in:

Proceedings of the National Aerospace Propulsion Conference ; Kapitel : 1 ; 3-26

Lecture Notes in Mechanical Engineering

Erscheinungsdatum :

2020-08-01

Format / Umfang :

24 pages

ISBN :

978-981-15-5039-3 , 978-981-15-5038-6

ISSN :

2195-4364 , 2195-4356

DOI :