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Keywords: simulation
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Proceedings Papers

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT25A003, June 13–17, 2022
Paper No: GT2022-82003
... Abstract In this paper, the cavitation process on a grain boundary in polycrystalline Alloy 247 is simulated and modelled. The cavitation process includes mechanisms such as nucleation, growth and coalescence of creep pores and was used for characterization of polycrystalline Alloy 247 in terms...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T18A009, June 13–17, 2022
Paper No: GT2022-81276
... of the MGT cycle that is accurate enough to predict the dynamic response of the engine and its components and fast enough to be utilized in design iterations is necessary. In this paper, a high-fidelity model for real-time simulation of an MGT, based on a lumped and nonlinear representation of gas turbine...
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
Paper No: GT2022-83214
... milling blisk CAM digital twin process design optimisation manufacturing simulation modeling turbomachinery Abstract The manufacturing process of blade-integrated disks (blisks) represents one of the most challenging tasks in turbomachinery manufacturing. The requirement...
Proceedings Papers

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A027, June 13–17, 2022
Paper No: GT2022-82840
... by the interfacial contact state, and the damping induced at the slipping contact area surrounding the bolt decreased the vibration response. Power flow through the bolted structure are visualized, which clarified the energy dissipation at the bolted interfaces. bolted flanges contact interfaces simulation...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A012, June 7–11, 2021
Paper No: GT2021-59119
... (vortex breakers) is studied by CFD simulation to evaluate to balance the hydraulic axial thrust, including pump out-vane their effect on the axial thrust, pump stage performance, and (POV), vortex breaker, balance hole, balance piston, and the internal leakage flow. Because of the similar POV working...
Proceedings Papers

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T19A007, June 7–11, 2021
Paper No: GT2021-58960
... dynamic behavior simulation modelling artificial neural network black-box model Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58960 PREDICTION OF DYNAMIC BEHAVIOR OF A SINGLE SHAFT GAS TURBINE USING NARX MODELS...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A075, September 21–25, 2020
Paper No: GT2020-16239
... are measured at design point and near stall point. Steady single passage simulations for four-stage compressor are carried out to validate numerical methods and further interpret the internal flow fields in test stages. This vertical LSRC facility consists of inlet guide vane (IGV) and four repeated stages...
Proceedings Papers

Proc. ASME. GT2013, Volume 5A: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V05AT20A005, June 3–7, 2013
Paper No: GT2013-94858
... is insufficient. By establishing the mathematical models of the proposed system we are able to conduct the numerical simulation of the system working in three typical operation modes around a whole year, namely the Combined Heating Power (CHP) mode in winter, the Combined Cooling Power (CCP) mode in summer...
Proceedings Papers

Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 449-456, June 11–15, 2012
Paper No: GT2012-70020
... with the design methodology of a 5:1 pressure ratio, 5-stage axial flow compressor with VIGV and a single stage axial flow turbine. These components were designed and their maps synthesized and fed to the gas turbine performance simulation program. The engine performance results were analyzed and verified...
Proceedings Papers

Proc. ASME. GT2008, Volume 7: Education; Industrial and Cogeneration; Marine; Oil and Gas Applications, 237-246, June 9–13, 2008
Paper No: GT2008-50921
... as a working fluid, simulations methods using air to replace helium as a compressor working fluid in the experiments are researched. An experimental compressor system is built to investigate the performance of a helium compressor. Under different operating conditions, the compressor performance characteristics...
Proceedings Papers

Proc. ASME. GT2007, Volume 3: Turbo Expo 2007, 183-193, May 14–17, 2007
Paper No: GT2007-27402
... the performance comparison of a two-dimensional, Streamline Curvature compressor model against experimental data before and after the adaptation of that particular loss model. Streamline Curvature Compressor Performance Simulation Loss Model Wake Momentum Thickness Adaptation P LIN Ioannis...
Proceedings Papers

Proc. ASME. GT2007, Volume 1: Turbo Expo 2007, 19-28, May 14–17, 2007
Paper No: GT2007-27086
... 10 03 2009 This paper describes the integration of advanced methods such as component zooming and distributed computing, in an object-oriented simulation environment dedicated to gas turbine engine performance modelling. A 1-D compressor stage stacking method is used to demonstrate...
Proceedings Papers

Proc. ASME. GT2002, Volume 2: Turbo Expo 2002, Parts A and B, 19-27, June 3–6, 2002
Paper No: GT2002-30021
... from the real engine and the model based information comes from the data obtained from engine performance model simulation with a permutation of implanted faults taking into account sensor noise and bias. The approach adopted here is to minimize an objective function which represents the difference...
Proceedings Papers

Proc. ASME. GT2003, Volume 3: Turbo Expo 2003, 211-219, June 16–19, 2003
Paper No: GT2003-38298
... simulation, and traceable performance test of turbomachinery and heat exchangers in the wet cycle systems. However, the impacts of thermodynamic properties on the simulation of systems and their components have been overlooked. This paper is to present our study and provide a comprehensive comparison...
Proceedings Papers

Proc. ASME. GT2004, Volume 2: Turbo Expo 2004, 573-577, June 14–17, 2004
Paper No: GT2004-53530
... 25 11 2008 Dynamic simulation is a great design tool in selecting control strategies and studying of the dynamic response of the engine. A model based on physical description of the plant components has been derived for control purposes, it is complex and highly non-linear but able...
Proceedings Papers

Proc. ASME. GT2005, Volume 1: Turbo Expo 2005, 185-194, June 6–9, 2005
Paper No: GT2005-68678
... 03 11 2008 An approach for gas turbine engine modelling using a general purpose object-oriented simulation tool is described. A commercially available such tool that can be adapted to different fields, through the creation of reusable modelling component libraries representing parts...
Proceedings Papers

Proc. ASME. GT2006, Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy, 279-295, May 8–11, 2006
Paper No: GT2006-90806
... 12 09 2008 Traditionally, engine performance has been simulated based on non-dimensional maps for compressors and turbines. Component characteristic maps assume by default a given state of inlet conditions which can not be easily altered in order to simulate two-dimensional or three...
Proceedings Papers

Proc. ASME. GT2006, Volume 2: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Environmental and Regulatory Affairs, 109-116, May 8–11, 2006
Paper No: GT2006-90339
... simulation tool, for the following applications: • Building an engine model from existing engine components and running steady state and transient calculations. • Development and integration of a new cooled turbine component in the existing engine model. • Accessing the engine model from an external...
Proceedings Papers

Proc. ASME. GT2006, Volume 1: Combustion and Fuels, Education, 963-969, May 8–11, 2006
Paper No: GT2006-90139
... 11 09 2008 This paper describes a jet engine simulation project assigned to mechanical engineering students in a senior level course in aircraft propulsion systems. The project introduces the students to the methods of engine system analysis and design based on computer simulation...
Proceedings Papers

Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 1941-1948, May 8–11, 2006
Paper No: GT2006-91225
... into account. Gas Turbine Compressor Simulation Performance Optimization Proceedings of GT2006 ASME TURBO EXPO 2006: Power for Land, Sea, and Air May 8-11, 2006, Barcelona, Spain ABSTRACT Gas turbines need to operate efficiently due to the high specific fuel consumption. In order to reach...