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Keywords: unsteady flow
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Proceedings Papers

Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A016, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103379
..., the spatial distribution of momentum exchange between the two phases of gas and liquid that causes acceleration loss and the dynamic behavior of coarse water droplets and water films are discussed. Keywords: two-phase, unsteady flow, Computational Fluid Dynamics (CFD), Turbomachinery NOMENCLATURE A, Aw...
Proceedings Papers

Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101101
.... prestall disturbances rotating instabilities unsteady flow tip clearance flow Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-101101 NUMERICAL CHARACTERIZATION OF PRESTALL DISTURBANCES IN A COMPRESSOR...
Proceedings Papers

Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A023, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103914
... efficient, the full interactions between the rotor and the stator can no longer be predicted accurately due to the averaged upstream flow field. Contrary to this, the time-average of an actual unsteady flow does not contain such a modeling error while still resulting in a flow field that is decoupled from...
Proceedings Papers

Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102145
.... URANS simulations are conducted to enable a detailed analysis of the highly unsteady flow, evidenced by a high acoustic Strouhal number Sr = 0.18. To model the influence of the volute, an experimentally measured inhomogeneous static pressure profile is used as a boundary condition at the diffuser outlet...
Proceedings Papers

Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT13A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101446
... the turbine vane enables the design of more efficient flow control and cooling strategies that mitigate heat loading while minimizing the amount of coolant. Keywords: heat flux, unsteady flow, CFD, nozzle guide vane NOMENCLATURE c Vane chord Freq. Frequency (Hz) h Heat transfer coefficient (W/(m2K)) k Thermal...
Proceedings Papers

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A027, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82342
... prospect for the application of DMD in the internal flow fields with passive control strategies. axial compressor casing treatment DMD tip leakage flow unsteady flow Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A048, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84388
... numerical methods. multi-stage turbomachinery unsteady flow blade row interaction mixing-plane method harmonic balance method space-time gradient method Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands...
Proceedings Papers

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A034, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84386
... deterministic correlations unsteady flow axial compressors Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-84386 INVESTIGATION OF UNSTEADY ROTOR-STATOR INTERACTION AND DETERMINISTIC CORRELATION ANALYSIS...
Proceedings Papers

Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A018, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82198
... jets extended proper orthogonal decomposition heat transfer unsteady flow Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82198 THE HEAT TRANSFER AND COHERENT STRUCTURES OF THE TANGENTIAL IMPINGEMENT...
Proceedings Papers

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A001, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58492
... leakage vortex breakdown rotating instability unsteady flow back flow vortex Abstract The unsteady flow in the compressor at small mass flow rate has an important impact on the safety and efficiency of the compressor. Rotating instability was found in the experiment at near stall condition...
Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A037, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59899
.... tip clearance unsteady flow stall Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59899 EXPERIMENTAL STUDY ON DIFFERENT TIP CLEARANCE OF LOW-SPEED AXIAL FAN Ming Zhang, Jia Li, Xu Dong, Dakun Sun and Xiaofeng...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A023, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15167
... happens and a new broken vortex core appears accompanied by a back flow region. compresssor tip leakage vortex breakdown unsteady flow PERIODIC UNSTEADINESS OF TIP CLEARANCE VORTEX IN AN AXIAL COMPRESSOR ROTOR Fan Yanga,Yanhui Wua,b,Ziyun Zhanga, Zhenyang Wanga aSchool of Power and Energy...
Proceedings Papers

Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 721-733, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69053
... Turbocharger development is based on performance maps arising through steady state measurements, although the flow through the engine-turbocharger system is highly unsteady. This paper investigates the potential for integrating the effects from unsteady flow in the turbine map, in order...
Proceedings Papers

Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 13-23, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45176
... velocity field measurement unsteady flow turbulence analysis 1 Copyright © 2011 by ASME Proceedings of ASME Turbo Expo 2011 GT2011 June 6-10, 2011, Vancouver, Canada GT2011-45176 INVESTIGATION OF THE TIP CLEARANCE FLOW IN A COMPRESSOR CASCADE USING A NOVEL LASER MEASUREMENT TECHNIQUE WITH HIGH...
Proceedings Papers

Proc. ASME. GT2010, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy, 319-327, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23064
...-dimensional flow features that reduce machine performance and influence rotor blade and duct wall thermal loads are identified. Keywords: wave topping unit, wave rotor, four-port reverse flow, unsteady flow, Coriolis accelerations. INTRODUCTION Small turbojet engines used in small unmanned aircraft...
Proceedings Papers

Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 433-444, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59473
... 23 02 2010 This paper presents a 3D unsteady flow and heat transfer analysis on the first stage turbine of a heavy duty gas turbine. Attention is focused on the combined unsteady effects and the unsteady interaction mechanism of hot streak and vane trailing edge coolant ejection...
Proceedings Papers

Proc. ASME. GT2009, Volume 4: Cycle Innovations; Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine, 623-629, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59713
... features of the first stages with partial admission are analyzed and discussed. Detailed flow patterns of the partial admission radial turbine impeller are presented here in this paper. Unsteady flow Partial admission Aerodynamic performances Multi-stage radial inflow turbine Numerical simulation...
Proceedings Papers

Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 1265-1278, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50766
... exhaust hood non-axisymmetric unsteady flow Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008 June 9-13, 2008, Berlin, Germany ABSTRACT This paper describes experimental and numerical studies on the coupled flow field in a single turbine stage and exhaust hood model...
Proceedings Papers

Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1735-1746, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-50415
.... unsteady flow hot streak three dimensional numerical simulation gas turbine Y U 0 h INTRODUCTION Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008 June 9-13, 2008, Berlin, Germany 1 Copyright © 2008 by ASME This paper presents a detailed flow and heat transfer cha- racteristic...
Proceedings Papers

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 189-198, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27581
... and the compressor overall efficiency, including the interaction of the rotor and the stator flow fields. Casing Treatment Axial Compressor Unsteady Flow Experimental Investigation * Curren is on the incidence flow to the compressor rotor, the tip clearan separat separat with a impact includi KEYW Ca...
Topics: Compressors