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Keywords: modeling
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Proceedings Papers

Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A009, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101666
... a theoretical model describing the liquid-film instability, the properties of the ligaments, and the droplet size dispersed downstream. The circumferential wavelength at the trailing edge is determined by the RT instability, which is accelerated by the shear force of the gas flow and gravity. The ligament...
Proceedings Papers

Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT26A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100631
... toolbox can perform analyses faster than the FEM and allows modeling and solving unique rotor dynamics problem such as unbalance response. Various analyses such as plotting the Campbell diagram, finding natural frequencies, determining mode shapes, determining the system frequency response due...
Proceedings Papers

Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT25A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101940
...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-101940 INFLUENCE OF CASTING DEFECTS ON THE LOW CYCLE FATIGUE PERFORMANCE OF MAR-M247 A PATH TOWARDS A PROBABILISTIC MODEL Jan Radners1Christoph...
Proceedings Papers

Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100547
...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-100547 FLUID DYNAMIC LOSS MODEL WITH WIDE APPLICABILITY FOR AEROENGINE TRANSMISSION GEARS Hidenori Arisawa Kawasaki Heavy Industries, LTD. Hyogo, Japan...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A021, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83214
... of machining tests on a demonstrator blisk made of Inconel 718 are presented and discussed. Keywords: Milling, Blisk, CAM, Digital Twin, Process Design Optimisation, Manufacturing, Simulation, Modeling, Turbomachinery NOMENCLATURE AI Artificial intelligence Blisk Blade-integrated disk BL Blocks CAD Computer...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A011, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81357
... turbomachinery modeling data analysis losses LPT unsteady Abstract In the present work linear and non-linear regression functions have been tuned with an extensive database describing the unsteady aerodynamic efficiency of low-pressure-turbine cascades. The learning strategy has been...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T16A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80828
... for heating and cooling, hospitals using CHP systems are more energy-efficient, leading also to a reduction of the global emissions connected to the hospital activity. The present study involves the development of a numerical model of the gas turbine-based cogeneration system installed in a hospital facility...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T05A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83233
... gas turbine gas path performance degradation health evaluation modeling Abstract Nonlinear gas path analysis (NGPA) is an important method for gas path fault diagnosis, and it is also the main technology for component performance estimation of gas turbine engines. However...
Topics: Gas turbines
Proceedings Papers

Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A043, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81654
... jet-in-crossflow primary atomization modeling jet trajectory K-H/R-T wave Abstract An improved primary atomization model for the jet-in-crossflow (JICF) atomization has been suggested and incorporated into the solver SprayFoam of OpenFOAM. The assumption of replacing jets with blobs...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81964
... 1Center for Engineering Materials, State Materials Testing Institute Darmstadt (MPA), Chair and Institute for Materials Technology (IfW), Technical University of Darmstadt, Germany ABSTRACT The majority of lifetime models associates the failure of ther- mal barrier coatings to an oxidation of the bond...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A017, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81823
...Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-81823 ASYNCHRONOUS COMMUNICATION PATTERN FOR REDUCING SIMULATION TIME IN ENGINE PERFORMANCE MODELS Charles Krouse Southwest Research Institute San...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A038, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59951
... Abstract A technique of representing and approximating of gas turbine engine (GTE) compressor maps is given. The aims of this study are to improve the efficiency of processing GTE test results and the reliability of GTE mathematical model. The paper analyzes various approaches of approximating...
Proceedings Papers

Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A020, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58830
...-air-equivalence Critical velocity gradient ratios. The lean blowout limit is increasing almost linearly with f Lean blowout distance increasing fuel-air-equivalence ratios, whereas with increasing Residence time of the mixture ammonia content the limit is decreasing. Furthermore, a model mean Chemical...
Proceedings Papers

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T03A015, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60093
... chemical kinetics fuel combustion modeling jet engines ignition flame speed species profiles Abstract The development of advanced reaction models to predict pollutant emissions in aero-engine combustors usually relies on surrogate formulations of a specific jet fuel for mimicking...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A012, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59562
... (CAD/CAM/CAE). Modern systems Manufacturing Variations, Modeling, Turbomachinery already provide a seamless integration of both worlds in a single digital environment to ensure a continuous workflow. Yet, for the NOMENCLATURE holistic harmonization between product and process design, the following...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A022, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15641
...A COMPREHENSIVE MODELING OF CENTRIFUGAL COMPRESSOR VIBRATIONS FOR EARLY FAULT DETECTION François Libeyre, Francis Bainier, Pascal Alas GRTgaz, Paris, France ABSTRACT In the last decade, the development of machine connectivity has made possible early fault detection with remote analysis of operating...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A013, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14968
... radial compressor quasi-3D modeling Abstract This work describes the development and the application of a quasi-3D method for the simulation of turbochargers for automotive applications under unsteady flow conditions. The quasi-3D approach is based on the solution of conservation...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A050, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15374
...-marching CFD model. The model was validated with experimental data obtained in a test rig which was designed and built specially for that research. The first crucial negative effect of the distorted inlet velocity profile is a variable incidence angle of the rotor. Both the CFD calculations...
Proceedings Papers

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT34A003, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14480
... Abstract For the reliable operation of modern gas turbines, Thermal Barrier Coatings (TBCs) need to withstand a wide range of ambient conditions resulting from impurities in inlet air or fuels. A novel deposition model has been developed that enables the prediction of deposition and transport...