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Journal Articles

Enhancement of Liquid Sodium (Na) Forced Convection Within Miniature Heat Sinks

Mahyar Pourghasemi, Nima Fathi

J. Heat Mass Transfer. May 2023, 145(5): 051801.

Paper No: HT-22-1626

DOI: https://doi.org/10.1115/1.4056143

Published Online: January 12, 2023

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Topics: Heat sinks, Cladding systems (Building), Sodium, Forced convection

Proceedings Papers

Validation Analysis of Medium-Scale Methanol Pool Fire

Jared Kirsch, Nima Fathi, Joshua Hubbard

Proc. ASME. VVUQ2022, ASME 2022 Verification, Validation, and Uncertainty Quantification Symposium, V001T07A001, May 25–26, 2022

Paper No: VVS2022-86806

DOI: https://doi.org/10.1115/VVS2022-86806

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Topics: Flow (Dynamics), Liquid pool fires, Methanol, Turbulence

Proceedings Papers

Verification Assessment of Thermal Models in Conjugate Heat Transfer Analysis of Small-Scale Heat Sinks

Mahyar Pourghasemi, Nima Fathi

Proc. ASME. VVUQ2022, ASME 2022 Verification, Validation, and Uncertainty Quantification Symposium, V001T07A003, May 25–26, 2022

Paper No: VVS2022-86822

DOI: https://doi.org/10.1115/VVS2022-86822

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Topics: Heat sinks, Heat transfer, Cladding systems (Building), Heat conduction, Reliability, Shells, Computer simulation, Computer software, Convection, Flow (Dynamics)

Journal Articles

Probing the Accuracy of Experimental Data on Nusselt Numbers Within Miniature Heat Sinks

Mahyar Pourghasemi, Nima Fathi

J. Thermal Sci. Eng. Appl. November 2022, 14(11): 111001.

Paper No: TSEA-22-1053

DOI: https://doi.org/10.1115/1.4054303

Published Online: June 14, 2022

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Topics: Heat sinks, Microchannels, Microscale devices, Heat flux, Heat conduction, Contact resistance, Reynolds number, Temperature, Wall temperature, Fluids

Journal Articles

Theoretical Approach for the Fast Estimation of the Turbulent Kinematic Viscosity for Internal Flows

Sal Rodriguez, Nima Fathi, Mahyar Pourghasemi

ASME J of Nuclear Rad Sci. July 2022, 8(3): 034502.

Paper No: NERS-20-1213

DOI: https://doi.org/10.1115/1.4054342

Published Online: May 26, 2022

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Topics: Flow (Dynamics), Internal flow, Kinematics, Turbulence, Viscosity, Simulation, Eddies (Fluid dynamics)

Proceedings Papers

Fluid Flow and Heat Transfer of Liquid Sodium in Small-Scale Heat Sinks With Different Geometries

Mahyar Pourghasemi, Nima Fathi

Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T07A011, August 10–12, 2021

Paper No: FEDSM2021-65869

DOI: https://doi.org/10.1115/FEDSM2021-65869

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Topics: Fluid dynamics, Heat sinks, Heat transfer, Sodium, Flow (Dynamics), Reynolds number, Computer simulation, Convection, Cross section (Physics), Laminar flow

Proceedings Papers

Asymmetrical Heat Distribution Pattern in Miniature Heat Sinks Due to Conjugate Heat Transfer

Mahyar Pourghasemi, Nima Fathi

Proc. ASME. VVS2021, ASME 2021 Verification and Validation Symposium, V001T06A003, May 19–20, 2021

Paper No: VVS2021-65325

DOI: https://doi.org/10.1115/VVS2021-65325

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Topics: Heat, Heat sinks, Heat transfer, Microchannels, Water, Computer simulation, Numerical analysis, Reynolds number

Proceedings Papers

Error Quantification of Nusselt Number Analysis in Miniature Heat Sinks: Verification and Validation Assessment

Mahyar Pourghasemi, Nima Fathi

Proc. ASME. VVS2021, ASME 2021 Verification and Validation Symposium, V001T06A004, May 19–20, 2021

Paper No: VVS2021-65326

DOI: https://doi.org/10.1115/VVS2021-65326

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Topics: Errors, Heat sinks, Flow (Dynamics), Microchannels, Uncertainty, Water, Computer simulation, Heat flux, Heat transfer, Microscale devices

Proceedings Papers

Response Effects Due to Polygonal Representation of Pores in Porous Media Thermal Models

Kevin W. Irick, Nima Fathi

Proc. ASME. VVS2021, ASME 2021 Verification and Validation Symposium, V001T09A001, May 19–20, 2021

Paper No: VVS2021-65231

DOI: https://doi.org/10.1115/VVS2021-65231

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Topics: Porous materials, Errors, Finite element methods, Geometry, Uncertainty, Computer simulation, Construction, Engineering models, Engineering simulation, Engineering systems and industry applications

Journal Articles

Computational Evaluation of Thermal Response of Open-Cell Foam With Circular Pore

Kevin W. Irick, Nima Fathi

J. Verif. Valid. Uncert. March 2021, 6(1): 011004.

Paper No: VVUQ-20-1025

DOI: https://doi.org/10.1115/1.4049323

Published Online: February 1, 2021

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Topics: Porosity, Porous materials, Temperature, Thermal conductivity, Uncertainty, Simulation, Heat, Composite materials, Finite element methods, Finite element analysis

Proceedings Papers

Evaluation of Pore Geometry Effects on Porous Cell Thermal Behavior

Kevin Irick, Nima Fathi

Proc. ASME. VVS2020, ASME 2020 Verification and Validation Symposium, V001T08A002, May 20–22, 2020

Paper No: VVS2020-8835

DOI: https://doi.org/10.1115/VVS2020-8835

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Topics: Geometry, Porous materials, Finite element methods, Shapes, Thermal conductivity, Bulk solids, Design, Energy industry, Flow (Dynamics), FORTRAN

Proceedings Papers

High-Fidelity Calculation of Effective Thermal Response of Composite Media With Heat Generation Source

Kevin Irick, Nima Fathi

Proc. ASME. VVS2020, ASME 2020 Verification and Validation Symposium, V001T08A003, May 20–22, 2020

Paper No: VVS2020-8836

DOI: https://doi.org/10.1115/VVS2020-8836

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Topics: Composite materials, Heat, Thermal conductivity, Fillers (Materials), Nuclear fuels, Finite element methods, Fuels, Heat transfer, Computer simulation, FORTRAN

Proceedings Papers

Thermal-Fluid Analysis and Optimization of Micro-Scale Heat Sinks With Slip Boundary Condition Using Entropy Generation Minimization Method

Mahyar Pourghasemi, Nima Fathi, Kevin R. Anderson

Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T01A017, July 13–15, 2020

Paper No: FEDSM2020-20478

DOI: https://doi.org/10.1115/FEDSM2020-20478

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Topics: Boundary-value problems, Entropy, Heat sinks, Microscale devices, Optimization, Thermofluids

Proceedings Papers

Multiphase Flow Development on Single Particle Migration in Low Reynolds Number Fluid Domains

Mahyar Pourghasemi, Nima Fathi, Peter Vorobieff, Goodarz Ahmadi, Kevin R. Anderson

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A038, July 13–15, 2020

Paper No: FEDSM2020-20477

DOI: https://doi.org/10.1115/FEDSM2020-20477

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Topics: Fluids, Multiphase flow, Particulate matter, Reynolds number

Proceedings Papers

Computational Evaluation of Thermal Barrier Coatings: Two-Phase Thermal Transport Analysis

Kevin Irick, Nima Fathi

Proc. ASME. VVS2019, ASME 2019 Verification and Validation Symposium, V001T12A002, May 15–17, 2019

Paper No: VVS2019-5134

DOI: https://doi.org/10.1115/VVS2019-5134

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Topics: Thermal barrier coatings, Thermal conductivity, Finite element analysis, Cooling, Gas turbines, Porous materials, Temperature, Uncertainty, Coatings, Composite materials

Proceedings Papers

Thermal Response of Open-Cell Porous Materials: A Numerical Study and Model Assessment

Kevin Irick, Nima Fathi

Proc. ASME. VVS2018, ASME 2018 Verification and Validation Symposium, V001T03A002, May 16–18, 2018

Paper No: VVS2018-9317

DOI: https://doi.org/10.1115/VVS2018-9317

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Topics: Porous materials, Thermal conductivity, Finite element methods, Porosity, Composite materials, Electronic packaging, Manufacturing, Materials properties, Modeling, Municipal solid wastes

Journal Articles

On the Development of Incompressible Round and Equilateral Triangular Jets Due to Reynolds Number Variation

Seyed Sobhan Aleyasin, Nima Fathi, Mark Francis Tachie, Peter Vorobieff, Mikhail Koupriyanov

J. Fluids Eng. November 2018, 140(11): 111202.

Paper No: FE-18-1007

DOI: https://doi.org/10.1115/1.4040031

Published Online: May 18, 2018

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Topics: Jets, Reynolds number, Turbulence, Nozzles, Flow (Dynamics)

Journal Articles

Power Cycle Assessment of Nuclear Systems, Providing Energy Storage for Low Carbon Grids

Nima Fathi, Patrick McDaniel, Charles Forsberg, Cassiano de Oliveira

ASME J of Nuclear Rad Sci. April 2018, 4(2): 020911.

Paper No: NERS-16-1139

DOI: https://doi.org/10.1115/1.4037806

Published Online: March 5, 2018

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Topics: Co-firing, Cycles, Flow (Dynamics), Steam, Temperature, Hydrogen, Combined cycles, Carbon

Proceedings Papers

Experimental-Numerical Analysis of Turbulent Incompressible Isothermal Jets

Seyed Sobhan Aleyasin, Nima Fathi, Mark Francis Tachie, Peter Vorobieff, Mikhail Koupriyanov

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, V01CT23A015, July 30–August 3, 2017

Paper No: FEDSM2017-69418

DOI: https://doi.org/10.1115/FEDSM2017-69418

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Topics: Jets, Turbulence, Reynolds number, Nozzles, Computational fluid dynamics, Flow (Dynamics), Computer simulation, Fluids, Geometry, Particulate matter

Proceedings Papers

Comparison of Turbulent Jets Issuing From Various Sharp Contoured Nozzles

Seyed Sobhan Aleyasin, Nima Fathi, Mark Francis Tachie, Mikhail Koupriyanov

Paper No: FEDSM2017-69419

DOI: https://doi.org/10.1115/FEDSM2017-69419

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Topics: Jets, Nozzles, Turbulence, Shapes, Cross section (Physics), Flow (Dynamics), Geometry, Particulate matter, Reynolds number, Rotation

Journal citation

NARROW

Enhancement of Liquid Sodium (Na) Forced Convection Within Miniature Heat Sinks

Validation Analysis of Medium-Scale Methanol Pool Fire

Verification Assessment of Thermal Models in Conjugate Heat Transfer Analysis of Small-Scale Heat Sinks

Probing the Accuracy of Experimental Data on Nusselt Numbers Within Miniature Heat Sinks

Theoretical Approach for the Fast Estimation of the Turbulent Kinematic Viscosity for Internal Flows

Fluid Flow and Heat Transfer of Liquid Sodium in Small-Scale Heat Sinks With Different Geometries

Asymmetrical Heat Distribution Pattern in Miniature Heat Sinks Due to Conjugate Heat Transfer

Error Quantification of Nusselt Number Analysis in Miniature Heat Sinks: Verification and Validation Assessment

Response Effects Due to Polygonal Representation of Pores in Porous Media Thermal Models

Computational Evaluation of Thermal Response of Open-Cell Foam With Circular Pore

Evaluation of Pore Geometry Effects on Porous Cell Thermal Behavior

High-Fidelity Calculation of Effective Thermal Response of Composite Media With Heat Generation Source

Thermal-Fluid Analysis and Optimization of Micro-Scale Heat Sinks With Slip Boundary Condition Using Entropy Generation Minimization Method

Multiphase Flow Development on Single Particle Migration in Low Reynolds Number Fluid Domains

Computational Evaluation of Thermal Barrier Coatings: Two-Phase Thermal Transport Analysis

Thermal Response of Open-Cell Porous Materials: A Numerical Study and Model Assessment

On the Development of Incompressible Round and Equilateral Triangular Jets Due to Reynolds Number Variation

Power Cycle Assessment of Nuclear Systems, Providing Energy Storage for Low Carbon Grids

Experimental-Numerical Analysis of Turbulent Incompressible Isothermal Jets

Comparison of Turbulent Jets Issuing From Various Sharp Contoured Nozzles

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