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Proceedings Papers

Interfacial Shear Modelling in Two-Phase Annular Flow

Ranganathan Kumar, David P. Edwards
Proc. ASME. IMECE96, Heat Transfer: Volume 3 — Experimental Studies in Multiphase Flow; Multiphase Flow in Porous Media; Experimental Multiphase Flows and Numerical Simulation of Two-Phase Flows; Fundamental Aspects of Experimental Methods, 381-389, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-0132
https://doi.org/10.1115/IMECE1996-0132
View Paper titled, Interfacial Shear Modelling in Two-Phase Annular Flow
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Topics: Flow (Dynamics), Modeling, Shear (Mechanics), Porosity, Drops, Densitometry, Ducts, Laser Doppler anemometry, Momentum, Pressure drop
Proceedings Papers

Annular Flow of R-134A in a Vertical Duct: Local Void Fraction, Droplet Velocity and Droplet Size Measurements

Thomas A. Trabold, Ranganathan Kumar, Peter F. Vassallo
Proc. ASME. IMECE98, Heat Transfer: Volume 5 — Numerical and Experimental Methods in Heat Transfer, 379-393, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0755
https://doi.org/10.1115/IMECE1998-0755
View Paper titled, Annular Flow of R-134A in a Vertical Duct: Local Void Fraction, Droplet Velocity and Droplet Size Measurements
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Topics: Drops, Ducts, Flow (Dynamics), Porosity, Size measurement, Computers, Densitometers, Dimensions, Fluids, Lasers
Proceedings Papers

Interface Shape and Wave Velocities of Air-Water Flows in a Vertical Duct

Matthias Gottmann, Tomomi Oishi, K. R. Sridhar, Ranganathan Kumar
Proc. ASME. IMECE98, Heat Transfer: Volume 5 — Numerical and Experimental Methods in Heat Transfer, 353-369, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0753
https://doi.org/10.1115/IMECE1998-0753
View Paper titled, Interface Shape and Wave Velocities of Air-Water Flows in a Vertical Duct
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Topics: Ducts, Flow (Dynamics), Shapes, Water, Waves, Probes, Resolution (Optics), Wire, Calibration, Design
Proceedings Papers

Uniform and Gaussian UV Light Intensity Distribution on Droplet for Selective Area Deposition of Particles

Tianyi Li, Aravinda Kar, Ranganathan Kumar
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A033, July 13–15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2020-20464
https://doi.org/10.1115/FEDSM2020-20464
View Paper titled, Uniform and Gaussian UV Light Intensity Distribution on Droplet for Selective Area Deposition of Particles
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Topics: Drops, Particulate matter, Ultraviolet radiation
Journal Articles

Uniform and Gaussian Ultraviolet Light Intensity Distribution on Droplet for Selective Area Deposition of Particles

Tianyi Li, Aravinda Kar, Ranganathan Kumar
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Briefs
J. Fluids Eng. September 2020, 142(9): 094503.
Paper No: FE-20-1075
https://doi.org/10.1115/1.4047122
Published Online: June 1, 2020
View Article titled, Uniform and Gaussian Ultraviolet Light Intensity Distribution on Droplet for Selective Area Deposition of Particles
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Topics: Drops, Particulate matter, Surface tension, Ultraviolet radiation, Eddies (Fluid dynamics)
Proceedings Papers

Curvature Estimation Modeling Using Machine Learning for CLSVOF Method: Comparison With Conventional Methods

Majid Haghshenas, Ranganathan Kumar
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A078, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5415
https://doi.org/10.1115/AJKFluids2019-5415
View Paper titled, Curvature Estimation Modeling Using Machine Learning for CLSVOF Method: Comparison With Conventional Methods
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Topics: Machine learning, Modeling
Proceedings Papers

Two-Phase Flow Simulation of High-Pressure Gas Atomization: Effect of Molten Metal and Atomizing Gas Properties on Droplet Size Distribution

Kalpana Hanthanan Arachchilage, Majid Haghshenas, Ranganathan Kumar
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A072, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5454
https://doi.org/10.1115/AJKFluids2019-5454
View Paper titled, Two-Phase Flow Simulation of High-Pressure Gas Atomization: Effect of Molten Metal and Atomizing Gas Properties on Droplet Size Distribution
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Topics: Drops, Fluids, High pressure (Physics), Metals, Simulation, Two-phase flow
Proceedings Papers

Concentration Distribution of Photosensitive Liquid in a Droplet Under UV Light

Tianyi Li, Aravinda Kar, Ranganathan Kumar
Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A010, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-5519
https://doi.org/10.1115/AJKFluids2019-5519
View Paper titled, Concentration Distribution of Photosensitive Liquid in a Droplet Under UV Light
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Topics: Convection, Drops, Ultraviolet radiation
Journal Articles

Concentration Distribution of Photosensitive Liquid in a Droplet Under Ultraviolet Light

Tianyi Li, Aravinda Kar, Ranganathan Kumar
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2020, 142(2): 021301.
Paper No: FE-19-1312
https://doi.org/10.1115/1.4044442
Published Online: October 4, 2019
View Article titled, Concentration Distribution of Photosensitive Liquid in a Droplet Under Ultraviolet Light
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Topics: Drops, Flow (Dynamics), Ultraviolet radiation, Surface tension, Particulate matter, Lasers
Proceedings Papers

Global and Local Measurements and Proper Orthogonal Decomposition of a Swirling Conical Liquid Sheet

Pretam K. Choudhury, Ashkan Davanlou, Eduardo Castillo Orozco, Ranganathan Kumar
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, V01BT20A005, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7860
https://doi.org/10.1115/FEDSM2016-7860
View Paper titled, Global and Local Measurements and Proper Orthogonal Decomposition of a Swirling Conical Liquid Sheet
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Topics: Principal component analysis, Swirling flow, Traveling waves, Fluctuations (Physics), Image processing, Imaging, Signals, Wavelength
Proceedings Papers

On the Impact of Liquid Drops on Immiscible Liquids

Eduardo Castillo-Orozco, Ashkan Davanlou, Pretam K. Choudhury, Ranganathan Kumar
Proc. ASME. ICNMM2016, ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, V001T08A005, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2016-8059
https://doi.org/10.1115/ICNMM2016-8059
View Paper titled, On the Impact of Liquid Drops on Immiscible Liquids
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Topics: Drops, Density, Viscosity, Fluids, Water, Cavities, Ethanol, Gulf of Mexico, Image processing, Silicones
Proceedings Papers

Modeling Phase Change Heat Transfer of Liquid/Vapor Systems in Free and Porous Media

James A. Wilson, Jonathan D. Wehking, Mark Trautman, Mark E. Blue, Ranganathan Kumar
Proc. ASME. IMECE2015, Volume 8B: Heat Transfer and Thermal Engineering, V08BT10A055, November 13–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2015-53232
https://doi.org/10.1115/IMECE2015-53232
View Paper titled, Modeling Phase Change Heat Transfer of Liquid/Vapor Systems in Free and Porous Media
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Topics: Heat transfer, Modeling, Porous materials, Vapors, Heat, Heating, Asphalt, Bituminous materials, Dynamics (Mechanics), Electromagnetic radiation
Proceedings Papers

On the Lifetime of Non-Coalescent Levitated Droplets

Ashkan Davanlou, Ranganathan Kumar
Proc. ASME. ICNMM2015, ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, V001T04A047, July 6–9, 2015
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2015-48826
https://doi.org/10.1115/ICNMM2015-48826
View Paper titled, On the Lifetime of Non-Coalescent Levitated Droplets
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Topics: Drops, Temperature, Fluids, Levitation
Journal Articles

Motion of Spherical Droplets against Marangoni Flow in a Thin Liquid Film

Ashkan Davanlou, Hyoung J. Cho, Ranganathan Kumar
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Photo Gallery
J. Heat Mass Transfer. August 2014, 136(8): 080915.
Paper No: HT-14-1213
https://doi.org/10.1115/1.4027533
Published Online: August 1, 2014
View Article titled, Motion of Spherical Droplets against Marangoni Flow in a Thin Liquid Film
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Topics: Drops, Flow (Dynamics), Heat, Lubrication theory, Mass transfer
Proceedings Papers

The Effects of Surfactant on Simplex Nozzle Spray Behavior and its Comparison to Liquid Fuels

Ashkan Davanlou, Joshua Lee, Saptarshi Basu, Ranganathan Kumar
Proc. ASME. IMECE2013, Volume 7A: Fluids Engineering Systems and Technologies, V07AT08A065, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-65116
https://doi.org/10.1115/IMECE2013-65116
View Paper titled, The Effects of Surfactant on Simplex Nozzle Spray Behavior and its Comparison to Liquid Fuels
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Topics: Fuels, Nozzles, Sprays, Surfactants, Surface tension, Drops, Water, Biofuel, Pressure, Aircraft engines
Proceedings Papers

IR Thermography and High Speed Imaging of Cerium Nitrate Precursor Droplets Heated by Monochromatic Irradiation

Abhishek Saha, Erick Tijerino, Ranganathan Kumar, Saptarshi Basu
Proc. ASME. ICNMM2010, ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels: Parts A and B, 821-829, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-31168
https://doi.org/10.1115/FEDSM-ICNMM2010-31168
View Paper titled, IR Thermography and High Speed Imaging of Cerium Nitrate Precursor Droplets Heated by Monochromatic Irradiation
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Topics: Drops, Imaging, Irradiation (Radiation exposure), Thermography, Heating, Precipitation, Acoustics, Bubbles, Gases, Infrared imaging
Proceedings Papers

Acoustically Levitated Nanofluid Droplet Vaporization

Erick Tijerino, Abhishek Saha, Ranganathan Kumar, Saptarshi Basu
Proc. ASME. ICNMM2010, ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels: Parts A and B, 831-840, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-31172
https://doi.org/10.1115/FEDSM-ICNMM2010-31172
View Paper titled, Acoustically Levitated Nanofluid Droplet Vaporization
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Topics: Acoustics, Drops, Nanofluids, Heat transfer, Particulate matter, Water, Carbon dioxide lasers, Evaporation, Nanoparticles, Scanning electron microscopy
Proceedings Papers

An Experimental Study of Surface Tension-Dependent Pool Boiling Characteristics of Carbon Nanotubes-Nanofluids

S. M. Sohel Murshed, Denitsa Milanova, Ranganathan Kumar
Proc. ASME. ICNMM2009, ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels, 75-80, June 22–24, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2009-82204
https://doi.org/10.1115/ICNMM2009-82204
View Paper titled, An Experimental Study of Surface Tension-Dependent Pool Boiling Characteristics of Carbon Nanotubes-Nanofluids
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Topics: Carbon, Nanofluids, Nanotubes, Pool boiling, Tension, Heat flux, Surface tension, Surfactants, Boiling, Carbon nanotubes
Proceedings Papers

Formation of Droplets in a T-Junction Microfluidic Device Using the Lattice Boltzmann Method

Amit Gupta, S. M. Sohel Murshed, Ranganathan Kumar
Proc. ASME. ICNMM2009, ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels, 647-654, June 22–24, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2009-82158
https://doi.org/10.1115/ICNMM2009-82158
View Paper titled, Formation of Droplets in a T-Junction Microfluidic Device Using the Lattice Boltzmann Method
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Topics: Drops, Junctions, Lattice Boltzmann methods, Microfluidics, Flow (Dynamics), Engineering simulation, Simulation, Bubbles, Chemical reactions, Drug delivery systems
Proceedings Papers

Novel In-Situ Laser Based Diagnostics for Measurement of Water Vapor and Carbon Dioxide Concentrations in the Gas Distribution Channels of a PEM Fuel Cell

Derek E. Lambe, Kyle Seleski, Ranganathan Kumar, Saptarshi Basu
Proc. ASME. ICNMM2009, ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels, 295-302, June 22–24, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICNMM2009-82001
https://doi.org/10.1115/ICNMM2009-82001
View Paper titled, Novel In-Situ Laser Based Diagnostics for Measurement of Water Vapor and Carbon Dioxide Concentrations in the Gas Distribution Channels of a PEM Fuel Cell
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Topics: Carbon dioxide, Lasers, Proton exchange membrane fuel cells, Water vapor, Absorption spectroscopy, Flow (Dynamics), Fuel cells, Laser beams, Resolution (Optics), Uncertainty