1-20 of 819
Fluctuations (Physics)
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Efficient Forced Response Analysis for Asymmetric Vane Spacing

Benedict Geihe, Christian Frey, Graham Ashcroft
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A022, June 13–17, 2022
Paper No: GT2022-82983
https://doi.org/10.1115/GT2022-82983
View Paper titled, Efficient Forced Response Analysis for Asymmetric Vane Spacing
Open the PDF for Efficient Forced Response Analysis for Asymmetric Vane Spacing in another window
Topics: Blades, Engineering simulation, Engines, Excitation, Fluctuations (Physics), Fourier transforms, Inflow, Rotors, Simulation, Turbines
Proceedings Papers

Effect of Bristle Diameter on Operational Modal Assessment and Seating Load of Brush Seals

Ertuğrul Tolga Duran
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A001, June 13–17, 2022
Paper No: GT2022-78289
https://doi.org/10.1115/GT2022-78289
View Paper titled, Effect of Bristle Diameter on Operational Modal Assessment and Seating Load of Brush Seals
Open the PDF for Effect of Bristle Diameter on Operational Modal Assessment and Seating Load of Brush Seals in another window
Topics: Stress, Turbines, Engineering simulation, Simulation, Stability, Durability, Finite element analysis, Pressure, Clearances (Engineering), Design
Proceedings Papers

Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade

Matteo Dellacasagrande, Davide Lengani, Ettore Bertolini, Wolfgang Sanz
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A020, June 13–17, 2022
Paper No: GT2022-82205
https://doi.org/10.1115/GT2022-82205
View Paper titled, Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade
Open the PDF for Correlated Pressure-Velocity Instability in a Transonic High-Pressure Turbine Blade in another window
Topics: High pressure (Physics), Pressure, Turbine blades, Boundary layers, Waves, Blades, Fluctuations (Physics), Suction, Large eddy simulation, Principal component analysis
Proceedings Papers

Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A003, June 13–17, 2022
Paper No: GT2022-79335
https://doi.org/10.1115/GT2022-79335
View Paper titled, Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage
Open the PDF for Vortex Unsteadiness in the Endwall Region of a High-Lift Low-Pressure Turbine Passage in another window
Topics: Pressure, Turbines, Vortices, Flow (Dynamics), Junctions, Blades, Cascades (Fluid dynamics), Fluctuations (Physics), Suction, Heat transfer
Proceedings Papers

Large Eddy Simulation of Turbulent Flow Through a Compressor Cascade

Syed Anjum Haider Rizvi, Joseph Mathew
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A040, June 13–17, 2022
Paper No: GT2022-83081
https://doi.org/10.1115/GT2022-83081
View Paper titled, Large Eddy Simulation of Turbulent Flow Through a Compressor Cascade
Open the PDF for Large Eddy Simulation of Turbulent Flow Through a Compressor Cascade in another window
Topics: Cascades (Fluid dynamics), Compressors, Large eddy simulation, Turbulence, Blades, Separation (Technology), Chords (Trusses), Suction, Airfoils, Boundary layers
Proceedings Papers

A Coupled Computational Aero-Acoustics (CAA)/ Large-Eddy Simulation (LES) Approach for the Pressure Calculation in Internal Low-Mach Number Flows

Pierre Bénez, Ghislain Lartigue, Vincent Moureau, Guillaume Ribert, Marine Robin
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A009, June 13–17, 2022
Paper No: GT2022-80476
https://doi.org/10.1115/GT2022-80476
View Paper titled, A Coupled Computational Aero-Acoustics (CAA)/ Large-Eddy Simulation (LES) Approach for the Pressure Calculation in Internal Low-Mach Number Flows
Open the PDF for A Coupled Computational Aero-Acoustics (CAA)/ Large-Eddy Simulation (LES) Approach for the Pressure Calculation in Internal Low-Mach Number Flows in another window
Topics: Acoustics, Flow (Dynamics), Large eddy simulation, Pressure, Simulation, Algorithms, Entropy, Fluctuations (Physics), Internal flow, Navier-Stokes equations
Proceedings Papers

Analytical Modeling of the Injector Response to High Frequency Modes in a Tubular Multi-Jet-Combustor

Jan-Andre Rosenkranz, Thomas Sattelmayer
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A006, June 13–17, 2022
Paper No: GT2022-81957
https://doi.org/10.1115/GT2022-81957
View Paper titled, Analytical Modeling of the Injector Response to High Frequency Modes in a Tubular Multi-Jet-Combustor
Open the PDF for Analytical Modeling of the Injector Response to High Frequency Modes in a Tubular Multi-Jet-Combustor in another window
Topics: Combustion chambers, Ejectors, Modeling, Acoustics, Emissions, Flames, Fuels, Combustion, Computation, Computer simulation
Proceedings Papers

Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines

Luca De Vincentiis, Kristina Ðurović, Davide Lengani, Daniele Simoni, Jan Pralits, Dan S. Henningson, Ardeshir Hanifi
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A015, June 13–17, 2022
Paper No: GT2022-82103
https://doi.org/10.1115/GT2022-82103
View Paper titled, Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines
Open the PDF for Free-Stream Turbulence Induced Boundary-Layer Transition in Low-Pressure Turbines in another window
Topics: Boundary layers, Pressure, Turbines, Turbulence, Wakes, Blades, Fluctuations (Physics), Rotors, Turbine blades, Boundary-value problems
Proceedings Papers

Turbulence Model Impact on Predicting Precursors to Surge Flow Instabilities in a Turbocharger Compressor

E. Trigell, M. Mihaescu
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A030, June 13–17, 2022
Paper No: GT2022-83103
https://doi.org/10.1115/GT2022-83103
View Paper titled, Turbulence Model Impact on Predicting Precursors to Surge Flow Instabilities in a Turbocharger Compressor
Open the PDF for Turbulence Model Impact on Predicting Precursors to Surge Flow Instabilities in a Turbocharger Compressor in another window
Topics: Compressors, Flow instability, Surges, Turbochargers, Turbulence, Flow (Dynamics), Design, Blades, Calibration, Computer simulation
Proceedings Papers

The Effects of Swirling Flows in Entropy Wave Convection Through High Pressure Turbine Stage

Lorenzo Pinelli, Michele Marconcini, Roberto Pacciani, Andrea Notaristefano, Paolo Gaetani
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A020, June 13–17, 2022
Paper No: GT2022-82594
https://doi.org/10.1115/GT2022-82594
View Paper titled, The Effects of Swirling Flows in Entropy Wave Convection Through High Pressure Turbine Stage
Open the PDF for The Effects of Swirling Flows in Entropy Wave Convection Through High Pressure Turbine Stage in another window
Topics: Convection, Entropy, High pressure (Physics), Swirling flow, Turbines, Waves, Combustion chambers, Computer simulation, Flow (Dynamics), Fluctuations (Physics)
Proceedings Papers

Effect of Twist Angle on the Performance of Darrieus Vertical Axis Wind Turbines

Ahmed S. Saad, Mahmoud Ahmed
Proc. ASME. GT2022, Volume 11: Wind Energy, V011T38A001, June 13–17, 2022
Paper No: GT2022-80198
https://doi.org/10.1115/GT2022-80198
View Paper titled, Effect of Twist Angle on the Performance of Darrieus Vertical Axis Wind Turbines
Open the PDF for Effect of Twist Angle on the Performance of Darrieus Vertical Axis Wind Turbines in another window
Topics: Blades, Computer simulation, Cycles, Design, Flow (Dynamics), Fluctuations (Physics), Navier-Stokes equations, Oscillations, Rotation, Rotors
Proceedings Papers

Real Time Precursor Calculation for the Early Detection of Combustion Instabilities

R. Meloni, N. Giannini
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T05A006, June 13–17, 2022
Paper No: GT2022-81310
https://doi.org/10.1115/GT2022-81310
View Paper titled, Real Time Precursor Calculation for the Early Detection of Combustion Instabilities
Open the PDF for Real Time Precursor Calculation for the Early Detection of Combustion Instabilities in another window
Topics: Combustion, Algorithms, Combustion chambers, Engines, Gas turbines, Pressure, Signals, Acoustics, Control systems, Emissions
Proceedings Papers

Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve

Stefan Wallat, Christian Musch, Dieter Brillert
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A007, June 13–17, 2022
Paper No: GT2022-80688
https://doi.org/10.1115/GT2022-80688
View Paper titled, Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve
Open the PDF for Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve in another window
Topics: Generators, Steam turbines, Valves, Vortices, Acoustics, Excitation, Cavities, Flow (Dynamics), Diffusers, Pressure
Proceedings Papers

Analysis of Turbulent Effects in a Low-Pressure Model Steam Turbine Operating Under Various Operating Conditions Using Detached Eddy Simulation

Ilgit Ercan, Damian M. Vogt
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A006, June 13–17, 2022
Paper No: GT2022-80523
https://doi.org/10.1115/GT2022-80523
View Paper titled, Analysis of Turbulent Effects in a Low-Pressure Model Steam Turbine Operating Under Various Operating Conditions Using Detached Eddy Simulation
Open the PDF for Analysis of Turbulent Effects in a Low-Pressure Model Steam Turbine Operating Under Various Operating Conditions Using Detached Eddy Simulation in another window
Topics: Eddies (Fluid dynamics), Pressure, Simulation, Steam turbines, Turbulence, Flow (Dynamics), Unsteady flow, Annulus, Arches, Blades
Proceedings Papers

Computation of Intrinsic Instability and Sound Generation From Autoignition Fronts

Harish Subramanian Gopalakrishnan, Andrea Gruber, Jonas Moeck
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A022, June 13–17, 2022
Paper No: GT2022-82480
https://doi.org/10.1115/GT2022-82480
View Paper titled, Computation of Intrinsic Instability and Sound Generation From Autoignition Fronts
Open the PDF for Computation of Intrinsic Instability and Sound Generation From Autoignition Fronts in another window
Topics: Computation, Combustion chambers, Flames, Oscillations, Acoustics, Ignition, Combustion, Heat, Carbon, Emissions
Proceedings Papers

Experimental and Numerical Characterization of the Self-Excited Dynamics Behavior of a Technically Premixed Burner

R. Meloni, S. Gori, G. Riccio, N. Chiarizia, D. Pampaloni, A. Andreini
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A013, June 13–17, 2022
Paper No: GT2022-82248
https://doi.org/10.1115/GT2022-82248
View Paper titled, Experimental and Numerical Characterization of the Self-Excited Dynamics Behavior of a Technically Premixed Burner
Open the PDF for Experimental and Numerical Characterization of the Self-Excited Dynamics Behavior of a Technically Premixed Burner in another window
Topics: Acoustics, Computational fluid dynamics, Computer simulation, Design, Dynamics (Mechanics), Flames, Fluctuations (Physics), Gas turbines, Large eddy simulation, Limit cycles
Proceedings Papers

Modeling of Flashback With Different Blends of CH4 and H2 by Using Finite Rate Chemistry With Large Eddy Simulation

Ishan Verma, Rakesh Yadav, Naseem Ansari, Stefano Orsino, Shaoping Li, Pravin Nakod
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A026, June 13–17, 2022
Paper No: GT2022-82601
https://doi.org/10.1115/GT2022-82601
View Paper titled, Modeling of Flashback With Different Blends of CH4 and H2 by Using Finite Rate Chemistry With Large Eddy Simulation
Open the PDF for Modeling of Flashback With Different Blends of CH4 and H2 by Using Finite Rate Chemistry With Large Eddy Simulation in another window
Topics: Chemistry, Combustion, Hydrogen, Large eddy simulation, Methane, Modeling, Combustion chambers, Engineering simulation, Simulation, Boundary layers
Proceedings Papers

Flame Transfer Functions for Turbulent, Premixed, Ammonia-Hydrogen-Nitrogen-Air Flames

Samuel Wiseman, Andrea Gruber, James R. Dawson
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A049, June 13–17, 2022
Paper No: GT2022-83298
https://doi.org/10.1115/GT2022-83298
View Paper titled, Flame Transfer Functions for Turbulent, Premixed, Ammonia-Hydrogen-Nitrogen-Air Flames
Open the PDF for Flame Transfer Functions for Turbulent, Premixed, Ammonia-Hydrogen-Nitrogen-Air Flames in another window
Topics: Flames, Hydrogen, Nitrogen, Transfer functions, Turbulence, Methane, Gas turbines, Fuels, Chemiluminescence, Collapse
Proceedings Papers

A Novel Decomposition Approach Preventing Spurious Entropy Generation in Hybrid Thermoacoustic Stability Computations

Gerrit Heilmann, Tong Liu, Pedro Romero Vega, Thomas Sattelmayer
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A029, June 13–17, 2022
Paper No: GT2022-82637
https://doi.org/10.1115/GT2022-82637
View Paper titled, A Novel Decomposition Approach Preventing Spurious Entropy Generation in Hybrid Thermoacoustic Stability Computations
Open the PDF for A Novel Decomposition Approach Preventing Spurious Entropy Generation in Hybrid Thermoacoustic Stability Computations in another window
Topics: Computation, Entropy, Stability, Flames, Acoustics, Frequency response, Combustion chambers, Flow (Dynamics), Fluctuations (Physics), Heat
Proceedings Papers

Gas Turbine Combined Cycle Range Enhancer - Part 1: Cyber-Physical Setup

Tommaso Reboli, Marco Ferrando, Luca Mantelli, Lorenzo Gini, Alessandro Sorce, Jose Garcia, Rafael Guedez
Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A022, June 13–17, 2022
Paper No: GT2022-82494
https://doi.org/10.1115/GT2022-82494
View Paper titled, Gas Turbine Combined Cycle Range Enhancer - Part 1: Cyber-Physical Setup
Open the PDF for Gas Turbine Combined Cycle Range Enhancer - Part 1: Cyber-Physical Setup in another window
Topics: Combined cycles, Gas turbines, Control equipment, Control systems, Cycles, Dynamic models, Energy generation, Energy management, Energy sustainability, Flow (Dynamics)