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Proceedings Papers

Flow Development of a Liquid Sheet Issued Into Low-Speed Airstream

Amin Jaberi, Mehran Tadjfar
Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T02A001, July 13–15, 2020
Paper No: FEDSM2020-20121
https://doi.org/10.1115/FEDSM2020-20121
View Paper titled, Flow Development of a Liquid Sheet Issued Into Low-Speed Airstream
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Topics: Flow (Dynamics), Ejectors, Flow visualization, Fluids, Jets, Momentum, Photography, Physics, Shapes, Trajectories (Physics)
Proceedings Papers

Large Eddy Simulation of Active Flow Control Over SD7003 at Reynolds Number of 60,000

Djavad Kamari, Mehran Tadjfar, Ali Tarokh
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A022, July 13–15, 2020
Paper No: FEDSM2020-20247
https://doi.org/10.1115/FEDSM2020-20247
View Paper titled, Large Eddy Simulation of Active Flow Control Over SD7003 at Reynolds Number of 60,000
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Topics: Flow control, Large eddy simulation, Reynolds number, Separation (Technology), Airfoils, Flow (Dynamics), Turbulence, Viscosity
Proceedings Papers

Investigating the Effect of Configuration and Reduced Frequency on SD7003 Airfoils Performance in Tandem

Niloofar Hosseini, Mehran Tadjfar
Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T05A056, July 13–15, 2020
Paper No: FEDSM2020-20196
https://doi.org/10.1115/FEDSM2020-20196
View Paper titled, Investigating the Effect of Configuration and Reduced Frequency on SD7003 Airfoils Performance in Tandem
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Topics: Airfoils, Artificial neural networks, Genetic algorithms, Optimization
Proceedings Papers

Experimental Investigation on Flow and Breakup of Two-Dimensional Liquid Jets

Amin Jaberi, Mehran Tadjfar
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A029, July 28–August 1, 2019
Paper No: AJKFluids2019-4642
https://doi.org/10.1115/AJKFluids2019-4642
View Paper titled, Experimental Investigation on Flow and Breakup of Two-Dimensional Liquid Jets
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Topics: Flow (Dynamics), Jets
Proceedings Papers

Flow Characteristics of Water Jets Discharging From Rectangular and Elliptical Injectors

Amin Jaberi, Mehran Tadjfar
Proc. ASME. FEDSM2018, Volume 3: Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics, V003T18A001, July 15–20, 2018
Paper No: FEDSM2018-83022
https://doi.org/10.1115/FEDSM2018-83022
View Paper titled, Flow Characteristics of Water Jets Discharging From Rectangular and Elliptical Injectors
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Topics: Ejectors, Flow (Dynamics), Jets, Water, Wavelength, Stability
Proceedings Papers

Experiments on the Injection of Elliptical Liquid Jets Into a Low Speed Airflow

Yosef Rezaei, Mehran Tadjfar
Proc. ASME. FEDSM2018, Volume 3: Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics, V003T18A003, July 15–20, 2018
Paper No: FEDSM2018-83157
https://doi.org/10.1115/FEDSM2018-83157
View Paper titled, Experiments on the Injection of Elliptical Liquid Jets Into a Low Speed Airflow
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Topics: Air flow, Jets, Nozzles, Trajectories (Physics), Ejectors, Flow (Dynamics), Momentum, Physics, Shapes
Proceedings Papers

Synthetic Jet Flow Control Optimization on SD7003 Airfoil at Low Reynolds Number

Djavad Kamari, Mehran Tadjfar
Proc. ASME. FEDSM2018, Volume 1: Flow Manipulation and Active Control; Bio-Inspired Fluid Mechanics; Boundary Layer and High-Speed Flows; Fluids Engineering Education; Transport Phenomena in Energy Conversion and Mixing; Turbulent Flows; Vortex Dynamics; DNS/LES and Hybrid RANS/LES Methods; Fluid Structure Interaction; Fluid Dynamics of Wind Energy; Bubble, Droplet, and Aerosol Dynamics, V001T01A004, July 15–20, 2018
Paper No: FEDSM2018-83195
https://doi.org/10.1115/FEDSM2018-83195
View Paper titled, Synthetic Jet Flow Control Optimization on SD7003 Airfoil at Low Reynolds Number
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Topics: Airfoils, Jets, Optimization, Reynolds number, Artificial neural networks, Boundary layers, Design, Drag (Fluid dynamics), Flow (Dynamics), Form drag
Proceedings Papers

Comparison of Two Active Flow Control Mechanisms of Pure Blowing and Pure Suction on a Pitching NACA0012 Airfoil at Reynolds Number of 1 × 10 6

Ehsan Asgari, Mehran Tadjfar
Proc. ASME. FEDSM2018, Volume 1: Flow Manipulation and Active Control; Bio-Inspired Fluid Mechanics; Boundary Layer and High-Speed Flows; Fluids Engineering Education; Transport Phenomena in Energy Conversion and Mixing; Turbulent Flows; Vortex Dynamics; DNS/LES and Hybrid RANS/LES Methods; Fluid Structure Interaction; Fluid Dynamics of Wind Energy; Bubble, Droplet, and Aerosol Dynamics, V001T01A006, July 15–20, 2018
Paper No: FEDSM2018-83463
https://doi.org/10.1115/FEDSM2018-83463
View Paper titled, Comparison of Two Active Flow Control Mechanisms of Pure Blowing and Pure Suction on a Pitching NACA0012 Airfoil at Reynolds Number of 1 × 10 6
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Topics: Airfoils, Flow control, Reynolds number, Suction, Computational fluid dynamics, Drag (Fluid dynamics), Vortices, Chords (Trusses), Clocks, Cross-flow
Journal Articles

The Role of Frequency and Phase Difference Between the Flow and the Actuation Signal of a Tangential Synthetic Jet on Dynamic Stall Flow Control

Mehran Tadjfar, Ehsan Asgari
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111203.
Paper No: FE-17-1835
https://doi.org/10.1115/1.4040795
Published Online: August 6, 2018
View Article titled, The Role of Frequency and Phase Difference Between the Flow and the Actuation Signal of a Tangential Synthetic Jet on Dynamic Stall Flow Control
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Topics: Airfoils, Drag (Fluid dynamics), Flow (Dynamics), Flow control, Actuators, Chords (Trusses), Reynolds number, Oscillations
Proceedings Papers

Study on the Effects of Active Flow Control on Aerodynamic Performance of Two Airfoils in Tandem Configuration

Ehsan Asgari, Armin Sheidani, Mehran Tadjfar
Proc. ASME. FEDSM2017, Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Gas and Liquid-Solid Two-Phase Flows; Numerical Methods for Multiphase Flow; Turbulent Flows: Issues and Perspectives; Flow Applications in Aerospace; Fluid Power; Bio-Inspired Fluid Mechanics; Flow Manipulation and Active Control; Fundamental Issues and Perspectives in Fluid Mechanics; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes, V01CT22A006, July 30–August 3, 2017
Paper No: FEDSM2017-69461
https://doi.org/10.1115/FEDSM2017-69461
View Paper titled, Study on the Effects of Active Flow Control on Aerodynamic Performance of Two Airfoils in Tandem Configuration
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Topics: Airfoils, Flow control, Drag (Fluid dynamics), Wings, Blades, Compressors, Rotors, Aircraft, Fluctuations (Physics), Stators
Proceedings Papers

Investigating the Effects of Using Synthetic Jet on Wing Tip Vortex at Low Reynolds Number

Djavad Kamari, Mehran Tadjfar
Proc. ASME. FEDSM2017, Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Gas and Liquid-Solid Two-Phase Flows; Numerical Methods for Multiphase Flow; Turbulent Flows: Issues and Perspectives; Flow Applications in Aerospace; Fluid Power; Bio-Inspired Fluid Mechanics; Flow Manipulation and Active Control; Fundamental Issues and Perspectives in Fluid Mechanics; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes, V01CT19A001, July 30–August 3, 2017
Paper No: FEDSM2017-69117
https://doi.org/10.1115/FEDSM2017-69117
View Paper titled, Investigating the Effects of Using Synthetic Jet on Wing Tip Vortex at Low Reynolds Number
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Topics: Reynolds number, Wake turbulence, Wings, Flow (Dynamics), Vortices, Chords (Trusses), Eddies (Fluid dynamics), Momentum, Simulation, Suction
Proceedings Papers

Investigation of Cavitation Phenomena on Noise of Underwater Propeller

Amir Karimi Noughabi, Morteza Bayati, Mehran Tadjfar
Proc. ASME. FEDSM2017, Volume 2, Fora: Cavitation and Multiphase Flow; Advances in Fluids Engineering Education, V002T13A007, July 30–August 3, 2017
Paper No: FEDSM2017-69536
https://doi.org/10.1115/FEDSM2017-69536
View Paper titled, Investigation of Cavitation Phenomena on Noise of Underwater Propeller
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Topics: Cavitation, Noise (Sound), Propellers, Marine propellers, Sound pressure, Acoustics, Blades, Flow (Dynamics), Multiphase flow, Noise control
Journal Articles

Active Flow Control of Dynamic Stall by Means of Continuous Jet Flow at Reynolds Number of 1 × 10 6

Mehran Tadjfar, Ehsan Asgari
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. January 2018, 140(1): 011107.
Paper No: FE-17-1258
https://doi.org/10.1115/1.4037841
Published Online: October 4, 2017
View Article titled, Active Flow Control of Dynamic Stall by Means of Continuous Jet Flow at Reynolds Number of 1 × 10 6
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Topics: Airfoils, Chords (Trusses), Drag (Fluid dynamics), Flow (Dynamics), Flow control, Jets, Pressure, Reynolds number, Separation (Technology), Vortices
Proceedings Papers

Active Flow Control of Dynamic Stall by Means of Jet Flow at Reynolds Number 10 6

Ehsan Asgari, Mehran Tadjfar
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, V01AT13A001, July 10–14, 2016
Paper No: FEDSM2016-7508
https://doi.org/10.1115/FEDSM2016-7508
View Paper titled, Active Flow Control of Dynamic Stall by Means of Jet Flow at Reynolds Number 10 6
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Topics: Flow control, Jets, Reynolds number, Drag (Fluid dynamics), Airfoils, Computational fluid dynamics, Vortices, Actuators, Chords (Trusses), Clocks
Proceedings Papers

Improvement of Wind Turbine Efficiency by Using Synthetic Jets

Nooshin Zeynali Khameneh, Mehran Tadjfar
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, V01BT29A009, July 10–14, 2016
Paper No: FEDSM2016-7959
https://doi.org/10.1115/FEDSM2016-7959
View Paper titled, Improvement of Wind Turbine Efficiency by Using Synthetic Jets
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Topics: Jets, Wind turbines, Blades, Airfoils, Chords (Trusses), Cycles, Flow (Dynamics), Flow control, NASA, Rotors
Proceedings Papers

Effects of Kinematics on Low Reynolds Number Wing

Rambod Mojgani, Mehran Tadjfar
Proc. ASME. FEDSM2013, Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT04A006, July 7–11, 2013
Paper No: FEDSM2013-16531
https://doi.org/10.1115/FEDSM2013-16531
View Paper titled, Effects of Kinematics on Low Reynolds Number Wing
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Topics: Kinematics, Reynolds number, Wings, Computational fluid dynamics, Displacement, Engineers, Flight, Flow (Dynamics), Fluids, Rotation
Proceedings Papers

Numerical Study of Winglet at Low Reynolds Numbers

Sina Pooladsanj, Mehran Tadjfar
Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT14A002, July 7–11, 2013
Paper No: FEDSM2013-16048
https://doi.org/10.1115/FEDSM2013-16048
View Paper titled, Numerical Study of Winglet at Low Reynolds Numbers
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Topics: Reynolds number, Aerodynamics, Airfoils, Flow (Dynamics), Wings, Design, Geometry, Vortex flow, Vortices, Vorticity
Proceedings Papers

Aeroacoustic Sound Prediction of a Diaphragm by a Hybrid Method

Morteza Bayati, Mehran Tadjfar
Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT13A001, July 7–11, 2013
Paper No: FEDSM2013-16066
https://doi.org/10.1115/FEDSM2013-16066
View Paper titled, Aeroacoustic Sound Prediction of a Diaphragm by a Hybrid Method
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Topics: Diaphragms (Mechanical devices), Diaphragms (Structural), Acoustics, Computation, Ducts, Noise (Sound), Flow (Dynamics), Fluctuations (Physics), Large eddy simulation, Numerical analysis
Proceedings Papers

Cross-Wind Influence on Low Aspect Ratio Wings at Low Reynolds Numbers

Amir Karimi Noughabi, Mehran Tadjfar
Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT14A005, July 7–11, 2013
Paper No: FEDSM2013-16523
https://doi.org/10.1115/FEDSM2013-16523
View Paper titled, Cross-Wind Influence on Low Aspect Ratio Wings at Low Reynolds Numbers
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Topics: Reynolds number, Wind, Wings
Proceedings Papers

Influence of Tip Shape on Structure of Wing-Tip Vortex at Low Reynolds Numbers

Djavad Kamari, Mehran Tadjfar
Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1663-1667, August 2–6, 2009
Paper No: FEDSM2009-78230
https://doi.org/10.1115/FEDSM2009-78230
View Paper titled, Influence of Tip Shape on Structure of Wing-Tip Vortex at Low Reynolds Numbers
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Topics: Reynolds number, Shapes, Vortices, Wings, Flow (Dynamics), Wake turbulence, Aerodynamics, Airfoils, Geometry, Vehicles