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Proceedings Papers

LES Investigation of Pollution Dispersion in a Street Canyon

Jedhathai (Vicky) Boontanom, Danesh Tafti
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T01A013, August 3–5, 2022
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2022-87197
https://doi.org/10.1115/FEDSM2022-87197
View Paper titled, LES Investigation of Pollution Dispersion in a Street Canyon
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Topics: Pollution, Roads
Proceedings Papers

Predictions of Scour Around Submerged Object Using LES-DEM

Husam Elghannay, Danesh Tafti
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A007, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20011
https://doi.org/10.1115/FEDSM2020-20011
View Paper titled, Predictions of Scour Around Submerged Object Using LES-DEM
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Topics: Computational fluid dynamics, Discrete element methods, Particulate matter, Sediments
Proceedings Papers

Modeling Non-Spherical Particulate Systems in the DEM Framework

Vivek Srinivasan, Danesh Tafti
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A017, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20018
https://doi.org/10.1115/FEDSM2020-20018
View Paper titled, Modeling Non-Spherical Particulate Systems in the DEM Framework
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Topics: Collisions (Physics), Discrete element methods, Modeling, Particulate matter
Proceedings Papers

LES-Conjugate Heat Transfer Analysis of a Ribbed Cooling Passage Using the Immersed Boundary Method

Tae Kyung Oh, Danesh Tafti, Krishnamurthy Nagendra
Proc. ASME. GT2019, Volume 5A: Heat Transfer, V05AT10A001, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90397
https://doi.org/10.1115/GT2019-90397
View Paper titled, LES-Conjugate Heat Transfer Analysis of a Ribbed Cooling Passage Using the Immersed Boundary Method
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Topics: Cooling, Heat transfer, Simulation, Ducts, Flow (Dynamics), Boundary layers, Boundary-value problems, Convection, Flat plates, Fluctuations (Physics)
Proceedings Papers

A Multiphase Computational Framework for Deposit Formation and Growth

Steven Paul, Danesh Tafti, Kuahai Yu
Proc. ASME. GT2019, Volume 2D: Turbomachinery, V02DT47A003, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90266
https://doi.org/10.1115/GT2019-90266
View Paper titled, A Multiphase Computational Framework for Deposit Formation and Growth
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Topics: Collisions (Physics), Flow (Dynamics), Fluids, Gas turbines, Heat conduction, Heat transfer, Jets, Materials properties, Particulate matter, Physics
Proceedings Papers

Heat Transfer During Impact of Elastoplastic and Cohesive Particles

Kuahai Yu, Danesh Tafti, Xi Yang, Shihong Xin
Proc. ASME. GT2019, Volume 2D: Turbomachinery, V02DT47A012, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91087
https://doi.org/10.1115/GT2019-91087
View Paper titled, Heat Transfer During Impact of Elastoplastic and Cohesive Particles
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Topics: Heat transfer, Particulate matter, Temperature, Adhesion, Collisions (Physics), Sands, Stainless steel, Alloys, Compression, Deformation
Journal Articles

Size- and Temperature-Dependent Collision and Deposition Model for Micron-Sized Sand Particles

Kuahai Yu, Danesh Tafti
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2019, 141(3): 031001.
Paper No: TURBO-18-1079
https://doi.org/10.1115/1.4042215
Published Online: January 16, 2019
View Article titled, Size- and Temperature-Dependent Collision and Deposition Model for Micron-Sized Sand Particles
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Topics: Collisions (Physics), Deformation, Particulate matter, Sands, Temperature, Adhesion
Proceedings Papers

Sand Transport and Deposition in Rotating Two-Passed Ribbed Duct With Coriolis and Centrifugal Buoyancy Forces at Re=100,000

Cody Dowd, Danesh Tafti, Kuahai Yu
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT48A002, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63167
https://doi.org/10.1115/GT2017-63167
View Paper titled, Sand Transport and Deposition in Rotating Two-Passed Ribbed Duct With Coriolis and Centrifugal Buoyancy Forces at Re=100,000
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Topics: Buoyancy, Ducts, Sands, Particulate matter, Rotation, Temperature, Wall temperature, Collisions (Physics), Cooling, Coriolis force
Proceedings Papers

Size and Temperature Dependent Deposition Model of Micro-Sized Sand Particles

Kuahai Yu, Danesh Tafti
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT48A008, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63792
https://doi.org/10.1115/GT2017-63792
View Paper titled, Size and Temperature Dependent Deposition Model of Micro-Sized Sand Particles
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Topics: Particulate matter, Sands, Temperature, Adhesion, Collisions (Physics), Displacement, Gas turbines, Glass, Hazards, Modeling
Proceedings Papers

Study of Fluid Structure Interaction Using Sharp Interface Immersed Boundary Method

Long He, Keyur Joshi, Danesh Tafti
Proc. ASME. FEDSM2016, Volume 1A, Symposia: Turbomachinery Flow Simulation and Optimization; Applications in CFD; Bio-Inspired and Bio-Medical Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES and Hybrid RANS/LES Methods; Fluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Active Fluid Dynamics and Flow Control — Theory, Experiments and Implementation, V01AT11A003, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7861
https://doi.org/10.1115/FEDSM2016-7861
View Paper titled, Study of Fluid Structure Interaction Using Sharp Interface Immersed Boundary Method
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Topics: Fluid structure interaction, Algorithms, Fluids, Boundary-value problems, Incompressible fluids
Proceedings Papers

On the Improvement of CFD-DEM Coarse Graining Predictions

Husam Elghannay, Kuahai Yu, Danesh Tafti
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT28A004, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7805
https://doi.org/10.1115/FEDSM2016-7805
View Paper titled, On the Improvement of CFD-DEM Coarse Graining Predictions
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Topics: Computational fluid dynamics, Discrete element methods, Particulate matter, Engineering simulation, Simulation, Fluid mechanics, Multiphase flow
Proceedings Papers

LES Simulations of Rotating Two-Pass Ribbed Duct With Coriolis and Centrifugal Buoyancy Forces at Re=100,000

Cody Dowd, Danesh Tafti
Proc. ASME. HT2016, Volume 2: Heat Transfer in Multiphase Systems; Gas Turbine Heat Transfer; Manufacturing and Materials Processing; Heat Transfer in Electronic Equipment; Heat and Mass Transfer in Biotechnology; Heat Transfer Under Extreme Conditions; Computational Heat Transfer; Heat Transfer Visualization Gallery; General Papers on Heat Transfer; Multiphase Flow and Heat Transfer; Transport Phenomena in Manufacturing and Materials Processing, V002T09A001, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: HT2016-7348
https://doi.org/10.1115/HT2016-7348
View Paper titled, LES Simulations of Rotating Two-Pass Ribbed Duct With Coriolis and Centrifugal Buoyancy Forces at Re=100,000
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Topics: Buoyancy, Ducts, Engineering simulation, Simulation, Heat transfer, Coriolis force, Flow (Dynamics), Geometry, Large eddy simulation, Reynolds number
Proceedings Papers

Dynamic Stall Simulation of Flow Over NACA0012 Airfoil at 1 Million Reynolds Number

Venkata Ravishankar Kasibhotla, Danesh Tafti
Proc. ASME. IMECE2015, Volume 7A: Fluids Engineering Systems and Technologies, V07AT09A020, November 13–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2015-50827
https://doi.org/10.1115/IMECE2015-50827
View Paper titled, Dynamic Stall Simulation of Flow Over NACA0012 Airfoil at 1 Million Reynolds Number
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Topics: Airfoils, Flow (Dynamics), Reynolds number, Simulation, Cycles, Vortices, Chords (Trusses), Dynamics (Mechanics), Large eddy simulation, Turbulence
Journal Articles

Computational Fluid Dynamics Computations Using a Preconditioned Krylov Solver on Graphical Processing Units

Amit Amritkar, Danesh Tafti
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2016, 138(1): 011402.
Paper No: FE-14-1469
https://doi.org/10.1115/1.4031159
Published Online: August 21, 2015
View Article titled, Computational Fluid Dynamics Computations Using a Preconditioned Krylov Solver on Graphical Processing Units
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Topics: Channel flow, Computation, Computational fluid dynamics, Graphics processing units, Pipe flow
Proceedings Papers

Evaluating the Immersed Boundary Method in a Ribbed Duct for the Internal Cooling of Turbine Blades

Long He, Danesh Tafti
Proc. ASME. GT2015, Volume 5A: Heat Transfer, V05AT11A036, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43953
https://doi.org/10.1115/GT2015-43953
View Paper titled, Evaluating the Immersed Boundary Method in a Ribbed Duct for the Internal Cooling of Turbine Blades
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Topics: Cooling, Ducts, Turbine blades, Geometry, Rotation, Turbulence, Blades, Flow (Dynamics), Heat transfer, Reynolds number
Proceedings Papers

Prediction of Sand Deposition in a Two-Pass Internal Cooling Duct

Sukhjinder Singh, Danesh Tafti
Proc. ASME. GT2015, Volume 5A: Heat Transfer, V05AT11A039, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-44103
https://doi.org/10.1115/GT2015-44103
View Paper titled, Prediction of Sand Deposition in a Two-Pass Internal Cooling Duct
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Topics: Cooling, Ducts, Sands, Particulate matter, Wall temperature, Geometry, Temperature, Boundary-value problems, Engines, Flow (Dynamics)
Proceedings Papers

Wall Modeled Large Eddy Simulation of Flow Over a Wall-Mounted Hump

Deepu Dilip, Danesh Tafti
Proc. ASME. FEDSM2014, Volume 1A, Symposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT09A010, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-21517
https://doi.org/10.1115/FEDSM2014-21517
View Paper titled, Wall Modeled Large Eddy Simulation of Flow Over a Wall-Mounted Hump
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Topics: Flow (Dynamics), Large eddy simulation, Reynolds number, Resolution (Optics), Boundary layers, Modeling, Pressure, Skin friction (Fluid dynamics), Stress, Turbulence
Proceedings Papers

Large Eddy Simulation of the Flow Past Pitching NACA0012 Airfoil at 1E5 Reynolds Number

Venkata Ravishankar Kasibhotla, Danesh Tafti
Proc. ASME. FEDSM2014, Volume 1A, Symposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT09A011, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-21588
https://doi.org/10.1115/FEDSM2014-21588
View Paper titled, Large Eddy Simulation of the Flow Past Pitching NACA0012 Airfoil at 1E5 Reynolds Number
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Topics: Airfoils, Flow (Dynamics), Large eddy simulation, Reynolds number, Chords (Trusses), Turbulence, Vortex shedding, Vortices
Proceedings Papers

CFD Computations Using Preconditioned Krylov Solver on GPUs

Amit Amritkar, Danesh Tafti
Proc. ASME. FEDSM2014, Volume 1D, Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations, V01DT35A001, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-21669
https://doi.org/10.1115/FEDSM2014-21669
View Paper titled, CFD Computations Using Preconditioned Krylov Solver on GPUs
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Topics: Computation, Computational fluid dynamics, Graphics processing units, Turbulence, Computer software, Pipe flow, Channel flow, FORTRAN, Hardware, Pressure
Proceedings Papers

Predicting the Coefficient of Restitution for Particle Wall Collisions in Gas Turbine Components

Sukhjinder Singh, Danesh Tafti
Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT37A041, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95623
https://doi.org/10.1115/GT2013-95623
View Paper titled, Predicting the Coefficient of Restitution for Particle Wall Collisions in Gas Turbine Components
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Topics: Collisions (Physics), Gas turbines, Particulate matter, Sands, Energy dissipation, Adhesion, Damage, Deformation, Engines, Erosion