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Proceedings Papers

Dynamics of Droplets in Core Gas Flow Superimposed With Acoustic Pressure Waves

Mehdi Mortazavi, Taylor Pedley
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A038, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72011
https://doi.org/10.1115/IMECE2021-72011
View Paper titled, Dynamics of Droplets in Core Gas Flow Superimposed With Acoustic Pressure Waves
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Topics: Drops, Dynamics (Mechanics), Gas flow, Sound pressure, Waves, Water, Oscillations, Gas diffusion layers, Flow (Dynamics), Electrodes
Proceedings Papers

Droplet Dynamics in PEM Fuel Cell Flow Channels

Mehdi Mortazavi, Vedang Chauhan, Taylor Pedley, Brian M. Whinery
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A037, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71972
https://doi.org/10.1115/IMECE2021-71972
View Paper titled, Droplet Dynamics in PEM Fuel Cell Flow Channels
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Topics: Drops, Dynamics (Mechanics), Flow (Dynamics), Proton exchange membrane fuel cells, Gas diffusion layers, Oscillations, Proton exchange membranes, Water, Electrodes, Fuel cells
Proceedings Papers

Transient Two-Phase Flow Pressure Drop During Droplet Emergence and Growth in Gas Flow Channels

Mehdi Mortazavi, Cade Watkins, Colin Murchie
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A036, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71869
https://doi.org/10.1115/IMECE2021-71869
View Paper titled, Transient Two-Phase Flow Pressure Drop During Droplet Emergence and Growth in Gas Flow Channels
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Topics: Drops, Gas flow, Pressure drop, Transients (Dynamics), Two-phase flow, Drag (Fluid dynamics), Gas diffusion layers, Water, Proton exchange membrane fuel cells, Electrodes
Proceedings Papers

Modeling the Effects of Surface Roughness Variations on Pressure Drop in Flow Minichannels

Abdulaziz Alghamdi, Suliman Alfaiz, Marwan Alsulami, Mehdi Mortazavi, Seyed A. Niknam
Proc. ASME. IMECE2021, Volume 2A: Advanced Manufacturing, V02AT02A019, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72042
https://doi.org/10.1115/IMECE2021-72042
View Paper titled, Modeling the Effects of Surface Roughness Variations on Pressure Drop in Flow Minichannels
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Topics: Flow (Dynamics), Modeling, Pressure drop, Surface roughness
Journal Articles

Force Scaling Comparison of Transport Phenomena in Proton Exchange Membrane Fuel Cell Flow Channels

Mehdi Mortazavi, Anthony D. Santamaria, Mahbod Heidari, Michael P. Doyle, Morgan A. Schrader, Elias R. Rizk
Journal: Journal of Electrochemical Energy Conversion and Storage
Publisher: ASME
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2021, 18(3): 031013.
Paper No: JEECS-20-1061
https://doi.org/10.1115/1.4049572
Published Online: January 28, 2021
View Article titled, Force Scaling Comparison of Transport Phenomena in Proton Exchange Membrane Fuel Cell Flow Channels
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Topics: Drops, Flow (Dynamics), Proton exchange membrane fuel cells, Surface tension, Water
Proceedings Papers

Experimental Characterization of a Novel Piezoelectric Fan

Jingru Benner, Eric Shilyuk, Jarrod Coletta, Mehdi Mortazavi, Anthony D. Santamaria, Shun Su, Tony Nguyen
Proc. ASME. IMECE2019, Volume 7: Fluids Engineering, V007T08A003, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-11039
https://doi.org/10.1115/IMECE2019-11039
View Paper titled, Experimental Characterization of a Novel Piezoelectric Fan
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Topics: Computer simulation, Deflection, Displacement, Energy consumption, Experimental characterization, Fans, Flow (Dynamics), Noise (Sound), Oscillations, Pressure
Proceedings Papers

Modified Manifold-Microchannel Heat Exchangers Fabricated Based on Additive Manufacturing: Experimental Characterization

William C. Yameen, Nathan A. Piascik, Andrew K. Miller, Riccardo C. Clemente, Jingru Z. Benner, Anthony D. Santamaria, Seyed A. Niknam, Mehdi Mortazavi
Proc. ASME. HT2019, ASME 2019 Heat Transfer Summer Conference, V001T07A002, July 14–17, 2019
Publisher: American Society of Mechanical Engineers
Paper No: HT2019-3535
https://doi.org/10.1115/HT2019-3535
View Paper titled, Modified Manifold-Microchannel Heat Exchangers Fabricated Based on Additive Manufacturing: Experimental Characterization
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Topics: Additive manufacturing, Experimental characterization, Heat exchangers, Manifolds, Microchannels, Design, Pressure drop, Air flow, Flow (Dynamics), Heat
Proceedings Papers

Enhanced Liquid Water Removal From PEM Fuel Cell Flow Channels by Superimposing Acoustic Pressure Wave on Air Flow

Mehdi Mortazavi, Anthony D. Santamaria, Jingru Benner, Vedang Chauhan
Proc. ASME. ICNMM2019, ASME 2019 17th International Conference on Nanochannels, Microchannels, and Minichannels, V001T11A003, June 23–26, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2019-4295
https://doi.org/10.1115/ICNMM2019-4295
View Paper titled, Enhanced Liquid Water Removal From PEM Fuel Cell Flow Channels by Superimposing Acoustic Pressure Wave on Air Flow
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Topics: Air flow, Flow (Dynamics), Proton exchange membrane fuel cells, Sound pressure, Water, Waves, Vibration, Acoustics, Pressure drop, Drops
Journal Articles

Modeling Deposition in Turbine Cooling Passages With Temperature-Dependent Adhesion and Mesh Morphing

Christopher P. Bowen, Nathan D. Libertowski, Mehdi Mortazavi, Jeffrey P. Bons
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2019, 141(7): 071010.
Paper No: GTP-18-1577
https://doi.org/10.1115/1.4042287
Published Online: February 6, 2019
View Article titled, Modeling Deposition in Turbine Cooling Passages With Temperature-Dependent Adhesion and Mesh Morphing
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Topics: Adhesion, Flow (Dynamics), Particulate matter, Temperature, Cooling, Modeling
Proceedings Papers

Numerical Simulation of Droplet Emergence and Growth From Gas Diffusion Layers (GDLs) in Proton Exchange Membrane (PEM) Fuel Cell Flow Channels

Jingru Benner, Mehdi Mortazavi, Anthony D. Santamaria
Proc. ASME. IMECE2018, Volume 6A: Energy, V06AT08A065, November 9–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2018-86579
https://doi.org/10.1115/IMECE2018-86579
View Paper titled, Numerical Simulation of Droplet Emergence and Growth From Gas Diffusion Layers (GDLs) in Proton Exchange Membrane (PEM) Fuel Cell Flow Channels
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Topics: Computer simulation, Drops, Flow (Dynamics), Fuel cells, Gas diffusion layers, Proton exchange membranes, Water, Anodes, Catalysts, Drag (Fluid dynamics)
Proceedings Papers

Modeling Deposition in Turbine Cooling Passages With Temperature Dependent Adhesion and Mesh Morphing

Christopher P. Bowen, Nathan D. Libertowski, Mehdi Mortazavi, Jeffrey P. Bons
Proc. ASME. GT2018, Volume 2D: Turbomachinery, V02DT47A009, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76251
https://doi.org/10.1115/GT2018-76251
View Paper titled, Modeling Deposition in Turbine Cooling Passages With Temperature Dependent Adhesion and Mesh Morphing
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Topics: Adhesion, Cooling, Modeling, Temperature, Turbines, Flow (Dynamics), Adhesives, Gas turbines, Packing (Shipments), Packings (Cushioning)
Proceedings Papers

Evaluation of Liquid-Gas Two-Phase Flow Pressure Drop Signatures in Proton Exchange Membrane (PEM) Fuel Cell Flow Channels

Mehdi Mortazavi, Jingru Benner, Anthony Santamaria
Proc. ASME. ICNMM2018, ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels, V001T02A008, June 10–13, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2018-7667
https://doi.org/10.1115/ICNMM2018-7667
View Paper titled, Evaluation of Liquid-Gas Two-Phase Flow Pressure Drop Signatures in Proton Exchange Membrane (PEM) Fuel Cell Flow Channels
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Topics: Flow (Dynamics), Fuel cells, Pressure drop, Proton exchange membranes, Two-phase flow, Air flow, Water, Inflow, Pressure, Proton exchange membrane fuel cells
Proceedings Papers

Microscale Layering of Liquid and Vapor Phases Within Microstructures for Self-Regulated Flow Delivery to Local Hot Spots

Abdolreza Fazeli, Sajjad Bigham, Mehdi Mortazavi, Saeed Moghaddam
Proc. ASME. InterPACK2015, Volume 3: Advanced Fabrication and Manufacturing; Emerging Technology Frontiers; Energy, Health and Water- Applications of Nano-, Micro- and Mini-Scale Devices; MEMS and NEMS; Technology Update Talks; Thermal Management Using Micro Channels, Jets, Sprays, V003T10A013, July 6–9, 2015
Publisher: American Society of Mechanical Engineers
Paper No: IPACK2015-48632
https://doi.org/10.1115/IPACK2015-48632
View Paper titled, Microscale Layering of Liquid and Vapor Phases Within Microstructures for Self-Regulated Flow Delivery to Local Hot Spots
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Topics: Flow (Dynamics), Microscale devices, Vapors, Temperature, Boiling, Heat sinks, Thin films, Design, Evaporation, Heat transfer
Proceedings Papers

Absorption Characteristics of Multilayered Thin Lithium Bromide (LiBr) Solution Film

Mehdi Mortazavi, Rasool Nasr Isfahani, Sajjad Bigham, Saeed Moghaddam
Proc. ASME. ICNMM2015, ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, V001T03A008, July 6–9, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2015-48225
https://doi.org/10.1115/ICNMM2015-48225
View Paper titled, Absorption Characteristics of Multilayered Thin Lithium Bromide (LiBr) Solution Film
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Topics: Absorption, Lithium, Design, Flow (Dynamics), Pressure, Temperature, Boundary layers, Computer simulation, Cooling, Displacement measurement
Proceedings Papers

Two-Phase Flow Pressure Drop Measurement in PEM Fuel Cell Flow Channels

Mehdi Mortazavi, Kazuya Tajiri
Proc. ASME. FUELCELL2014, ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology, V001T06A011, June 30–July 2, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2014-6484
https://doi.org/10.1115/FuelCell2014-6484
View Paper titled, Two-Phase Flow Pressure Drop Measurement in PEM Fuel Cell Flow Channels
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Topics: Flow (Dynamics), Pressure drop, Proton exchange membrane fuel cells, Two-phase flow, Water, Flux (Metallurgy), Proton exchange membranes, Fuel cells, Heat
Proceedings Papers

In-Plane Microstructure of Gas Diffusion Layers With Different Properties for PEFC

Mehdi Mortazavi, Kazuya Tajiri
Proc. ASME. FUELCELL2013, ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology, V001T01A007, July 14–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2013-18132
https://doi.org/10.1115/FuelCell2013-18132
View Paper titled, In-Plane Microstructure of Gas Diffusion Layers With Different Properties for PEFC
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Topics: Gas diffusion layers, Carbon, Drops, Fuel cells, Transport phenomena, Design, Electrolytes, Microscale devices, Permeability, Polymers
Proceedings Papers

Impact of Gas Diffusion Layer Properties on Liquid Water Breakthrough Pressure in Polymer Electrolyte Fuel Cell

Mehdi Mortazavi, Kazuya Tajiri
Proc. ASME. FUELCELL2013, ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology, V001T01A016, July 14–19, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FuelCell2013-18361
https://doi.org/10.1115/FuelCell2013-18361
View Paper titled, Impact of Gas Diffusion Layer Properties on Liquid Water Breakthrough Pressure in Polymer Electrolyte Fuel Cell
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Topics: Electrolytes, Fuel cells, Gas diffusion layers, Polymers, Pressure, Water, Drops, Flow (Dynamics), Pressure transducers, Pumps
Journal Articles

In-Plane Microstructure of Gas Diffusion Layers With Different Properties for PEFC

Mehdi Mortazavi, Kazuya Tajiri
Journal: Journal of Electrochemical Energy Conversion and Storage
Publisher: ASME
Article Type: Research-Article
J. Electrochem. En. Conv. Stor. April 2014, 11(2): 021002.
Paper No: FC-13-1069
https://doi.org/10.1115/1.4025930
Published Online: December 4, 2013
View Article titled, In-Plane Microstructure of Gas Diffusion Layers With Different Properties for PEFC
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Topics: Gas diffusion layers, Water, Drops