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Keywords: stall margin
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Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A002, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-75881
... interaction with rotor passage core flow. Six different vortex generator configuration are investigated by varying distance between vortex generator trailing edge and rotor leading edge. Particular vortex generator configuration shows maximum improvement of stall margin and operating range by 5.5% and 76.75...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A003, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-75882
... with improves both compressor stall margin as well as stage efficiency. Hence in the current work, as an innovative idea, effect of casing treatment slot along rotor tip mean camber line is investigated on NASA 37 compressor stage. Casing treatment slot with rectangular cross-section was created along the rotor...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A005, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-76007
... [3], axially skewed and skew angles (0o, 30o, 45° and 60o). The slot length of 20 to slots [4], [5], bend slots [6], semicircular slots [7], etc. Osborn et 100% of Ca, depth of 15.7% Ca and skew angle of 60o resulted in al. [8] demonstrated the maximum stall margin improvement the best compressor...
Proceedings Papers

Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T07A003, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2572
... pattern. Therefore, it is found that component level optimization may not give rise to an equiv- alent system-level improvement. Keywords: Inter-compressor duct, Multi-spool compression sys- tem, fan rotating and stationary wakes, Stall margin [email protected]; Address all correspondence...
Proceedings Papers

Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T01A014, December 5–6, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2013-3620
... travels nearly at half the rotor speed. Keywords: Transonic, axial flow compressor, stall margin, rotating stall 1. INTRODUCTION Aero engine performance is mainly governed by one of the rotating components namely axial flow compressor. Transonic axial compressor stages are the most preferred compressors...
Proceedings Papers

Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T01A018, December 5–6, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2013-3768
... wake fluid. Considering the positive effects of crenulation in a cascade, it was hypothesized that the same technique would work in a rotating compressor to enhance its performance and stall margin. However, the present CFD simulations on a transonic compressor rotor have given mixed results. Whereas...
Proceedings Papers

Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 123-130, December 1, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2012-9573
... This paper presents the results of numerical studies on the effect of endwall reshaping on the performance and stall margin of a centrifugal compressor. The endwall (shroud) of a baseline compressor was reshaped by introducing a convex hump at a location downstream of the inducer where the flow...
Topics: Compressors
Proceedings Papers

Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 139-148, December 1, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2012-9601
... Axial Transonic Compressor J-Shaped Casing Treatment Stall Margin CFD Gas Turbine Casing Treatment (CT) is one of the passive methods to increase the stability margin of the compress and hence that of the aircraft jet engines. In this paper, a novel J-shaped axial CT slot geometry...