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Alexandrina Untaroiu
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Journal Articles

Role of Secondary Ions on the i-v Characteristics of Oxyfuel Flame Subject to an Electric Field

Alexandrina Untaroiu, S. M. Mahbobur Rahman, Christopher R. Martin
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. July 2023, 145(7): 071202.
Paper No: FE-22-1477
DOI: https://doi.org/10.1115/1.4056845
Published Online: March 20, 2023
View Article titled, Role of Secondary Ions on the i-v Characteristics of Oxyfuel Flame Subject to an Electric Field
Click here to open pdf in another window PDF for Role of Secondary Ions on the i-v Characteristics of Oxyfuel Flame Subject to an Electric Field
Topics: Flames, Ions, Electric fields, Carbon, Temperature
Proceedings Papers

Electrical Characteristics of the Oxyfuel Preheat Flame: 3D Computational Model Subject to Electric Bias Voltages

S. M. Mahbobur Rahman, Rohith Warrier, Alexandrina Untaroiu, Christopher R. Martin
Proc. ASME. IMECE2022, Volume 8: Fluids Engineering; Heat Transfer and Thermal Engineering, V008T10A032, October 30–November 3, 2022
Paper No: IMECE2022-95787
DOI: https://doi.org/10.1115/IMECE2022-95787
View Paper titled, Electrical Characteristics of the Oxyfuel Preheat Flame: 3D Computational Model Subject to Electric Bias Voltages
Click here to open pdf in another window PDF for Electrical Characteristics of the Oxyfuel Preheat Flame: 3D Computational Model Subject to Electric Bias Voltages
Topics: Computational fluid dynamics, Computer simulation, Flames
Proceedings Papers

Understanding the Impact of the Rim Protector on the Aerodynamic Performance of a Standalone Tire

Shubham Rath, Alexandrina Untaroiu, Gen Fu
Proc. ASME. IMECE2022, Volume 8: Fluids Engineering; Heat Transfer and Thermal Engineering, V008T10A009, October 30–November 3, 2022
Paper No: IMECE2022-96007
DOI: https://doi.org/10.1115/IMECE2022-96007
View Paper titled, Understanding the Impact of the Rim Protector on the Aerodynamic Performance of a Standalone Tire
Click here to open pdf in another window PDF for Understanding the Impact of the Rim Protector on the Aerodynamic Performance of a Standalone Tire
Topics: Drag (Fluid dynamics), Tires
Proceedings Papers

A Finite Element Model of an Electric Scooter for Simulating Traffic Accidents

Rafael Chontos, Daniel Grindle, Alexandrina Untaroiu, Zachary Doerzaph, Costin Untaroiu
Proc. ASME. IDETC-CIE2022, Volume 1: 24th International Conference on Advanced Vehicle Technologies (AVT), V001T01A003, August 14–17, 2022
Paper No: DETC2022-90669
DOI: https://doi.org/10.1115/DETC2022-90669
View Paper titled, A Finite Element Model of an Electric Scooter for Simulating Traffic Accidents
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Topics: Finite element model, Scooters, Traffic accidents, Wounds
Proceedings Papers

Effects of Tire Attributes on the Aerodynamic Performance of a Generic Car-Tire Assembly

Shubham Rath, Alexandrina Untaroiu, Gen Fu
Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T01A017, August 3–5, 2022
Paper No: FEDSM2022-87705
DOI: https://doi.org/10.1115/FEDSM2022-87705
View Paper titled, Effects of Tire Attributes on the Aerodynamic Performance of a Generic Car-Tire Assembly
Click here to open pdf in another window PDF for Effects of Tire Attributes on the Aerodynamic Performance of a Generic Car-Tire Assembly
Topics: Manufacturing, Tires, Vehicles, Simulation, Drag (Fluid dynamics), Flow (Dynamics), Roads, Engineering simulation, Boundary-value problems, Computational fluid dynamics
Journal Articles

A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process

Christopher R. Martin, Alexandrina Untaroiu, Kemu Xu, S. M. Mahbobur Raman
Journal: Journal of Manufacturing Science and Engineering
Article Type: Research Papers
J. Manuf. Sci. Eng. July 2022, 144(7): 071010.
Paper No: MANU-21-1448
DOI: https://doi.org/10.1115/1.4053216
Published Online: February 10, 2022
View Article titled, A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process
Click here to open pdf in another window PDF for A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process
Topics: Cutting, Flames, Oxygen, Electrical resistance, Steel
Journal Articles

Strain Response and Aerodynamic Damping of a Swirl Distortion Generator Using Computational Fluid Dynamics

Andrew Hayden, Alexandrina Untaroiu
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. March 2022, 144(3): 031204.
Paper No: FE-20-1779
DOI: https://doi.org/10.1115/1.4052139
Published Online: September 27, 2021
View Article titled, Strain Response and Aerodynamic Damping of a Swirl Distortion Generator Using Computational Fluid Dynamics
Click here to open pdf in another window PDF for Strain Response and Aerodynamic Damping of a Swirl Distortion Generator Using Computational Fluid Dynamics
Topics: Computational fluid dynamics, Damping, Finite element analysis, Pressure, Mach number, Flutter (Aerodynamics)
Proceedings Papers

Numerical Simulation on the Vortex Shedding From Airfoils of a Swirl Distortion Generator

Andrew Hayden, Cole Hefner, Alexandrina Untaroiu, John Gillespie, K. Todd Lowe
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A005, June 7–11, 2021
Paper No: GT2021-58963
DOI: https://doi.org/10.1115/GT2021-58963
View Paper titled, Numerical Simulation on the Vortex Shedding From Airfoils of a Swirl Distortion Generator
Click here to open pdf in another window PDF for Numerical Simulation on the Vortex Shedding From Airfoils of a Swirl Distortion Generator
Topics: Airfoils, Computer simulation, Generators, Vortex shedding, Boundary layers, Turning angles, Aircraft, Cascades (Fluid dynamics), Computational fluid dynamics, Design
Proceedings Papers

A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process

Christopher R. Martin, Alexandrina Untaroiu, Kemu Xu, S. M. Mahbobur Rahman
Proc. ASME. MSEC2021, Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering; Manufacturing Equipment and Automation, V001T05A008, June 21–25, 2021
Paper No: MSEC2021-63615
DOI: https://doi.org/10.1115/MSEC2021-63615
View Paper titled, A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process
Click here to open pdf in another window PDF for A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process
Topics: Cutting, Electrical resistance, Flames, Electrons, Measurement uncertainty, Uncertainty
Journal Articles

Investigation of Tire Rotating Modeling Techniques Using Computational Fluid Dynamics

Gen Fu, Alexandrina Untaroiu
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. November 2021, 143(11): 111206.
Paper No: FE-21-1063
DOI: https://doi.org/10.1115/1.4051311
Published Online: July 2, 2021
View Article titled, Investigation of Tire Rotating Modeling Techniques Using Computational Fluid Dynamics
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Topics: Computational fluid dynamics, Modeling, Tires, Drag (Fluid dynamics), Rotation
Proceedings Papers

Effects of Tire Attributes on Aerodynamic Performance

Gen Fu, Alexandrina Untaroiu
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A033, November 16–19, 2020
Paper No: IMECE2020-24615
DOI: https://doi.org/10.1115/IMECE2020-24615
View Paper titled, Effects of Tire Attributes on Aerodynamic Performance
Click here to open pdf in another window PDF for Effects of Tire Attributes on Aerodynamic Performance
Topics: Computational fluid dynamics, Drag (Fluid dynamics), Tires
Proceedings Papers

Strain Response and Aerodynamic Damping of a Swirl Distortion Generator Using Computational Fluid Dynamics

Andrew Hayden, Alexandrina Untaroiu
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A063, November 16–19, 2020
Paper No: IMECE2020-24599
DOI: https://doi.org/10.1115/IMECE2020-24599
View Paper titled, Strain Response and Aerodynamic Damping of a Swirl Distortion Generator Using Computational Fluid Dynamics
Click here to open pdf in another window PDF for Strain Response and Aerodynamic Damping of a Swirl Distortion Generator Using Computational Fluid Dynamics
Topics: Computational fluid dynamics, Damping, Generators, Finite element analysis, Flutter (Aerodynamics), Aircraft, Boundary layers, Computational methods, Flow (Dynamics), Fuel efficiency
Proceedings Papers

Simulation of Ion Current in Oxyfuel Flame Subject to an Electric Field

Kemu Xu, Alexandrina Untaroiu, Christopher Martin
Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A064, November 16–19, 2020
Paper No: IMECE2020-24601
DOI: https://doi.org/10.1115/IMECE2020-24601
View Paper titled, Simulation of Ion Current in Oxyfuel Flame Subject to an Electric Field
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Topics: Electric fields, Electrons, Flames, Ions, Methane, Oxygen, Simulation
Proceedings Papers

Development of a Modal Selection Method for Full Strain Field Estimation

Gen Fu, Alexandrina Untaroiu
Proc. ASME. IDETC-CIE2020, Volume 5: 24th Reliability, Stress Analysis, and Failure Prevention Conference (RSAFP), V005T05A007, August 17–19, 2020
Paper No: DETC2020-22371
DOI: https://doi.org/10.1115/DETC2020-22371
View Paper titled, Development of a Modal Selection Method for Full Strain Field Estimation
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Topics: Computer simulation, Electromagnetic spectrum, Errors, Excitation, Modal analysis, Monitoring systems, Shapes, Stochastic systems, Turbomachinery
Proceedings Papers

Investigation on the Modeling of Tire Rotating Using Computational Fluid Dynamics

Gen Fu, Alexandrina Untaroiu
Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T01A035, July 13–15, 2020
Paper No: FEDSM2020-20099
DOI: https://doi.org/10.1115/FEDSM2020-20099
View Paper titled, Investigation on the Modeling of Tire Rotating Using Computational Fluid Dynamics
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Topics: Computational fluid dynamics, Modeling, Tires, Deformation, Drag (Fluid dynamics), Aerodynamics, Air flow, Design, Experimental methods, Fuel efficiency
Proceedings Papers

Leakage Rate Performance Mapping of Smooth Stator/Grooved Rotor Labyrinth Seals Using Statistical Tools

Hanxiang Jin, Alexandrina Untaroiu
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A078, July 28–August 1, 2019
Paper No: AJKFluids2019-5429
DOI: https://doi.org/10.1115/AJKFluids2019-5429
View Paper titled, Leakage Rate Performance Mapping of Smooth Stator/Grooved Rotor Labyrinth Seals Using Statistical Tools
Click here to open pdf in another window PDF for Leakage Rate Performance Mapping of Smooth Stator/Grooved Rotor Labyrinth Seals Using Statistical Tools
Topics: Leakage, Rotors, Stators, Design, Computational fluid dynamics, Pressure, Geometry, Experimental design, Fluids, Kinetic energy
Proceedings Papers

Surrogate Model Based Optimization for Chevron Foil Thrust Bearing

Alexandrina Untaroiu, Gen Fu
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A012, June 17–21, 2019
Paper No: GT2019-90228
DOI: https://doi.org/10.1115/GT2019-90228
View Paper titled, Surrogate Model Based Optimization for Chevron Foil Thrust Bearing
Click here to open pdf in another window PDF for Surrogate Model Based Optimization for Chevron Foil Thrust Bearing
Topics: Optimization, Thrust bearings, Shapes, Design, Temperature, Heat, Bearings, Computational fluid dynamics, Energy dissipation, Thermal management
Proceedings Papers

Hemodynamics Characteristics of a Four-Way Right-Atrium Bypass Connector With an Optimized Central Diverter

Elizabeth Mack, Jakin Jagani, Alexandrina Untaroiu
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, V001T02A002, July 15–20, 2018
Paper No: FEDSM2018-83167
DOI: https://doi.org/10.1115/FEDSM2018-83167
View Paper titled, Hemodynamics Characteristics of a Four-Way Right-Atrium Bypass Connector With an Optimized Central Diverter
Click here to open pdf in another window PDF for Hemodynamics Characteristics of a Four-Way Right-Atrium Bypass Connector With an Optimized Central Diverter
Topics: Blood flow, Composite materials, Computational fluid dynamics, Design, Engineering design processes, Erythrocytes, Failure, Flow (Dynamics), Geometry, Heart failure
Proceedings Papers

A Computational Modelling for Hemodynamic Conditions Following Flow-Diverting Treatment in Cerebral Aneurysms

Gen Fu, Alexandrina Untaroiu
Proc. ASME. FEDSM2018, Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change, V002T09A022, July 15–20, 2018
Paper No: FEDSM2018-83408
DOI: https://doi.org/10.1115/FEDSM2018-83408
View Paper titled, A Computational Modelling for Hemodynamic Conditions Following Flow-Diverting Treatment in Cerebral Aneurysms
Click here to open pdf in another window PDF for A Computational Modelling for Hemodynamic Conditions Following Flow-Diverting Treatment in Cerebral Aneurysms
Topics: Aneurysms, Flow (Dynamics), Hemodynamics, Modeling, Stents, Physiology, Rupture, Vorticity, Blood vessels, Boundary-value problems
Proceedings Papers

Effect of Stent Design Parameters on Hemodynamics and Blood Damage in a Percutaneous Cavopulmonary Assist Device

Jakin Jagani, Elizabeth Mack, Jihyeon Gong, Alexandrina Untaroiu
Proc. ASME. FEDSM2018, Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change, V002T11A007, July 15–20, 2018
Paper No: FEDSM2018-83210
DOI: https://doi.org/10.1115/FEDSM2018-83210
View Paper titled, Effect of Stent Design Parameters on Hemodynamics and Blood Damage in a Percutaneous Cavopulmonary Assist Device
Click here to open pdf in another window PDF for Effect of Stent Design Parameters on Hemodynamics and Blood Damage in a Percutaneous Cavopulmonary Assist Device
Topics: Blood, Damage, Design, Hemodynamics, Stents, Pumps, Pressure, Propellers, Struts (Engineering), Blood flow