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Proceedings Papers

A Wall-Modeled Large Eddy Simulation Method for High-Order Spectral Element Solvers

D. Keith Walters, Shanti Bhushan, Wayne Strasser
Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T05A026, August 3–5, 2022
Paper No: FEDSM2022-87742
https://doi.org/10.1115/FEDSM2022-87742
View Paper titled, A Wall-Modeled Large Eddy Simulation Method for High-Order Spectral Element Solvers
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Topics: Large eddy simulation
Journal Articles

Scale-Resolving Simulations of a Statistically Targeted Forcing Method for Synthetic Turbulence Generation in a Freestream Turbulence

Olalekan O. Shobayo, D. Keith Walters
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. June 2022, 144(6): 061109.
Paper No: FE-21-1520
https://doi.org/10.1115/1.4053647
Published Online: March 11, 2022
View Article titled, Scale-Resolving Simulations of a Statistically Targeted Forcing Method for Synthetic Turbulence Generation in a Freestream Turbulence
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Topics: Simulation, Turbulence, Kinetic energy, Stress, Flow (Dynamics)
Journal Articles

Evaluation of a Statistically Targeted Forcing Method for Synthetic Turbulence Generation in Scale-Resolving Simulations

Olalekan O. Shobayo, D. Keith Walters
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. June 2022, 144(6): 061107.
Paper No: FE-21-1372
https://doi.org/10.1115/1.4053551
Published Online: February 23, 2022
View Article titled, Evaluation of a Statistically Targeted Forcing Method for Synthetic Turbulence Generation in Scale-Resolving Simulations
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Topics: Simulation, Turbulence
Proceedings Papers

A New Variant of the Dynamic Hybrid RANS-LES Model for Complex Turbulent Flows

Tausif Jamal, Olalekan O. Shobayo, D. Keith Walters
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A052, November 1–5, 2021
Paper No: IMECE2021-72185
https://doi.org/10.1115/IMECE2021-72185
View Paper titled, A New Variant of the Dynamic Hybrid RANS-LES Model for Complex Turbulent Flows
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Topics: Channel flow, Reynolds-averaged Navier–Stokes equations, Turbulence
Proceedings Papers

Statistically Targeted Forcing (STF) Method for Synthetic Turbulence Generation of Initial Conditions in Three-Dimensional Turbulent Mixing Layer Flow

Olalekan O. Shobayo, D. Keith Walters
Proc. ASME. FEDSM2021, Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics, V001T02A030, August 10–12, 2021
Paper No: FEDSM2021-65916
https://doi.org/10.1115/FEDSM2021-65916
View Paper titled, Statistically Targeted Forcing (STF) Method for Synthetic Turbulence Generation of Initial Conditions in Three-Dimensional Turbulent Mixing Layer Flow
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Topics: Flow (Dynamics), Turbulence, Stress, Computational fluid dynamics, Dynamics (Mechanics), Vortices, Engineering simulation, Large eddy simulation, Simulation, Statistical distributions
Journal Articles

Numerical Simulation of a Three-Dimensional Axisymmetric Hill: Performance Evaluation of Hybrid RANS–LES Models

Tausif Jamal, Varun Chitta, D. Keith Walters
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. October 2021, 143(10): 101503.
Paper No: FE-20-1300
https://doi.org/10.1115/1.4051027
Published Online: June 4, 2021
View Article titled, Numerical Simulation of a Three-Dimensional Axisymmetric Hill: Performance Evaluation of Hybrid RANS–LES Models
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Topics: Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Separation (Technology), Simulation, Turbulence, Pressure, Viscosity, Delay differential equations, Boundary layers, Computer simulation
Journal Articles

Hybrid RANS–LES Simulation of Turbulent Heat Transfer in a Channel Flow With Imposed Streamwise or Spanwise Mean Temperature Gradient

Olalekan O. Shobayo, D. Keith Walters
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. August 2021, 143(8): 081104.
Paper No: FE-21-1150
https://doi.org/10.1115/1.4051067
Published Online: June 4, 2021
View Article titled, Hybrid RANS–LES Simulation of Turbulent Heat Transfer in a Channel Flow With Imposed Streamwise or Spanwise Mean Temperature Gradient
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Topics: Delay differential equations, Flow (Dynamics), Heat flux, Large eddy simulation, Reynolds-averaged Navier–Stokes equations, Simulation, Temperature, Temperature gradient, Turbulence, Eddies (Fluid dynamics)
Journal Articles

Identification of a Pressure–Strain Correlation-Based Bypass Transition Onset Marker

Satish Muthu, Shanti Bhushan, D. Keith Walters
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. October 2021, 143(10): 101501.
Paper No: FE-20-1380
https://doi.org/10.1115/1.4050705
Published Online: May 28, 2021
View Article titled, Identification of a Pressure–Strain Correlation-Based Bypass Transition Onset Marker
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Topics: Flow (Dynamics), Pressure, Turbulence, Boundary layers, Simulation, Fluctuations (Physics), Flat plates
Proceedings Papers

Investigation of Numerical Scheme and Model Combinations for CFD Simulation of a Thermosyphon

Huiyu Wang, D. Keith Walters, Keisha B. Walters
Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T01A021, July 13–15, 2020
Paper No: FEDSM2020-20355
https://doi.org/10.1115/FEDSM2020-20355
View Paper titled, Investigation of Numerical Scheme and Model Combinations for CFD Simulation of a Thermosyphon
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Topics: Computational fluid dynamics, Simulation, Temperature, Mass transfer, Flow (Dynamics), Relaxation (Physics), Boundary-value problems, Condensation, Condensers (steam plant), Evaporation
Proceedings Papers

Numerical Investigation and Performance Characterization of Oscillating Foil Energy Harvesting

James Pannell, D. Keith Walters
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A018, July 13–15, 2020
Paper No: FEDSM2020-20375
https://doi.org/10.1115/FEDSM2020-20375
View Paper titled, Numerical Investigation and Performance Characterization of Oscillating Foil Energy Harvesting
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Topics: Energy harvesting, Oscillations, Performance characterization, Chords (Trusses), Computational fluid dynamics, Energy generation, Energy sustainability, Rivers, Tides
Proceedings Papers

Performance Evaluation of a Non-Linear Explicit Algebraic Reynolds Stress Model for Surface Mounted Obstacles

Benjamin H. Taylor, Tausif Jamal, D. Keith Walters
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A025, July 13–15, 2020
Paper No: FEDSM2020-20304
https://doi.org/10.1115/FEDSM2020-20304
View Paper titled, Performance Evaluation of a Non-Linear Explicit Algebraic Reynolds Stress Model for Surface Mounted Obstacles
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Topics: Algebra, Performance evaluation, Stress, Reynolds-averaged Navier–Stokes equations, Flow (Dynamics), Eddies (Fluid dynamics), Viscosity, Wakes, Anisotropy, Computer simulation
Proceedings Papers

Investigation of Turbulence Model Performance in Computational Fluid Dynamics Simulations of Horizontal Axis Wind Turbines

Keaton Mullenix, D. Keith Walters, Arturo Villegas, F. Javier Diez
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A023, July 13–15, 2020
Paper No: FEDSM2020-20269
https://doi.org/10.1115/FEDSM2020-20269
View Paper titled, Investigation of Turbulence Model Performance in Computational Fluid Dynamics Simulations of Horizontal Axis Wind Turbines
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Topics: Computational fluid dynamics, Horizontal axis wind turbines, Simulation, Turbulence, Wind turbines, Modeling, Errors, Flow (Dynamics), Fluids, Fossil fuels
Proceedings Papers

Numerical Simulation of Non-Stationary Turbulent Flows Using Double Exponential Dynamic Time Filtering Technique

Tausif Jamal, Shanti Bhushan, D. Keith Walters
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A038, July 13–15, 2020
Paper No: FEDSM2020-20295
https://doi.org/10.1115/FEDSM2020-20295
View Paper titled, Numerical Simulation of Non-Stationary Turbulent Flows Using Double Exponential Dynamic Time Filtering Technique
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Topics: Computer simulation, Filtration, Turbulence, Reynolds-averaged Navier–Stokes equations, Flow (Dynamics), Statistics, Boundary layers, Combustion, Hemodynamics, Hydrodynamics
Proceedings Papers

Evaluation of a Statistically Targeted Forcing Method for Synthetic Turbulence Generation in Large-Eddy Simulations and Hybrid RANS-LES Simulations

Olalekan O. Shobayo, D. Keith Walters
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A043, July 13–15, 2020
Paper No: FEDSM2020-20376
https://doi.org/10.1115/FEDSM2020-20376
View Paper titled, Evaluation of a Statistically Targeted Forcing Method for Synthetic Turbulence Generation in Large-Eddy Simulations and Hybrid RANS-LES Simulations
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Topics: Engineering simulation, Large eddy simulation, Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence, Computational fluid dynamics, Eddies (Fluid dynamics), Stress, Anisotropy, Flow (Dynamics)
Proceedings Papers

Investigation of an Algebraic Reynolds Stress Model for Simulation of Wall-Bounded Turbulent Flows With and Without Buoyancy Effects

Tausif Jamal, D. Keith Walters
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A042, July 13–15, 2020
Paper No: FEDSM2020-20354
https://doi.org/10.1115/FEDSM2020-20354
View Paper titled, Investigation of an Algebraic Reynolds Stress Model for Simulation of Wall-Bounded Turbulent Flows With and Without Buoyancy Effects
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Topics: Algebra, Buoyancy, Simulation, Stress, Turbulence, Reynolds-averaged Navier–Stokes equations, Computational fluid dynamics, Computer simulation, Heat flux, Modeling
Proceedings Papers

A Dynamic Time Filtering Technique for Hybrid RANS-LES Simulation of Non-Stationary Turbulent Flow

Tausif Jamal, D. Keith Walters
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A051, July 28–August 1, 2019
Paper No: AJKFluids2019-4696
https://doi.org/10.1115/AJKFluids2019-4696
View Paper titled, A Dynamic Time Filtering Technique for Hybrid RANS-LES Simulation of Non-Stationary Turbulent Flow
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Topics: Filtration, Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence, Flow (Dynamics), Computational fluid dynamics, Engineering simulation, Large eddy simulation, Pressure gradient, Channel flow
Proceedings Papers

Evaluation of Pressure-Strain Correlation As a Basis for Development of a Physics-Based Transition Onset Marker

Satish Muthu, Shanti Bhushan, D. Keith Walters
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A059, July 28–August 1, 2019
Paper No: AJKFluids2019-5418
https://doi.org/10.1115/AJKFluids2019-5418
View Paper titled, Evaluation of Pressure-Strain Correlation As a Basis for Development of a Physics-Based Transition Onset Marker
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Topics: Physics, Pressure, Boundary layers, Computational fluid dynamics, Engineering simulation, Reynolds-averaged Navier–Stokes equations, Simulation, Computer simulation, Flat plates, Flow instability
Proceedings Papers

Hybrid RANS-LES Simulation of Turbulent Heat Transfer in a Channel Flow With Imposed Spanwise and Streamwise Mean Temperature Gradient

Olalekan O. Shobayo, D. Keith Walters
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A052, July 28–August 1, 2019
Paper No: AJKFluids2019-4920
https://doi.org/10.1115/AJKFluids2019-4920
View Paper titled, Hybrid RANS-LES Simulation of Turbulent Heat Transfer in a Channel Flow With Imposed Spanwise and Streamwise Mean Temperature Gradient
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Topics: Channel flow, Computational fluid dynamics, Heat flux, Reynolds-averaged Navier–Stokes equations, Simulation, Temperature gradient, Turbulence, Turbulent heat transfer
Proceedings Papers

The Effect of Model Parameters on CFD Simulation of a Thermosyphon

Huiyu Wang, D. Keith Walters, Keisha B. Walters
Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A056, July 28–August 1, 2019
Paper No: AJKFluids2019-4896
https://doi.org/10.1115/AJKFluids2019-4896
View Paper titled, The Effect of Model Parameters on CFD Simulation of a Thermosyphon
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Topics: Computational fluid dynamics, Simulation, Condensation, Evaporation, Mass transfer, Density, Flow (Dynamics), Heat transfer, Modeling, Simulation results
Proceedings Papers

LES and Hybrid RANS-LES Simulation of a Pulsating Channel Flow

Tausif Jamal, Huiyu Wang, D. Keith Walters
Proc. ASME. IMECE2018, Volume 7: Fluids Engineering, V007T09A078, November 9–15, 2018
Paper No: IMECE2018-87990
https://doi.org/10.1115/IMECE2018-87990
View Paper titled, LES and Hybrid RANS-LES Simulation of a Pulsating Channel Flow
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Topics: Channel flow, Reynolds-averaged Navier–Stokes equations, Simulation, Flow (Dynamics), Computational fluid dynamics, Turbulence, Blood flow, Boundary layer turbulence, Combustion, Filters