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Proceedings Papers

A Numerical Study of the Convective Heat Transfer in Low-Reynolds Number Turbulent Flows in Corrugated Pipes

Ramin K. Rahmani, J. Eric Arnold, George W. Kraus
Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 1675-1681, November 9–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2012-87516
https://doi.org/10.1115/IMECE2012-87516
View Paper titled, A Numerical Study of the Convective Heat Transfer in Low-Reynolds Number Turbulent Flows in Corrugated Pipes
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Topics: Convection, Heat transfer, Large eddy simulation, Pipes, Turbulence
Journal Articles

Enhancement of Temperature Blending in Convective Heat Transfer by Motionless Inserts With Variable Segment Length

Ramin K. Rahmani, Anahita Ayasoufi, Emad Y. Tanbour, Hosein Molavi
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. September 2010, 2(3): 031009.
https://doi.org/10.1115/1.4003087
Published Online: December 22, 2010
View Article titled, Enhancement of Temperature Blending in Convective Heat Transfer by Motionless Inserts With Variable Segment Length
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Topics: Convection, Flow (Dynamics), Temperature, Turbulence, Pipes, Pressure drop
Journal Articles

A Novel Methodology for Combined Parameter and Function Estimation Problems

Hosein Molavi, Ali Hakkaki-Fard, Ramin K. Rahmani, Anahita Ayasoufi, Mehdi Molavi
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2010, 132(12): 121301.
https://doi.org/10.1115/1.4002283
Published Online: September 17, 2010
View Article titled, A Novel Methodology for Combined Parameter and Function Estimation Problems
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Topics: Contact resistance, Errors, Gradient methods, Heat flux, Parameter estimation, Specific heat, Temperature, Thermal conductivity, Noise (Sound), Sensors
Journal Articles

Enhancement of Convective Heat Transfer in Internal Compressible Flows by Stationary Inserts

Ramin K. Rahmani, Emad Y. Tanbour, Anahita Ayasoufi, Hosein Molavi
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. March 2010, 2(1): 011005.
https://doi.org/10.1115/1.4002011
Published Online: August 12, 2010
View Article titled, Enhancement of Convective Heat Transfer in Internal Compressible Flows by Stationary Inserts
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Topics: Compressible flow, Convection, Flow (Dynamics), Heat transfer, Pipes, Heat flux, Temperature, Buoyancy, Design, Forced convection
Proceedings Papers

Large-Eddy Simulation of Turbulent Flow Through Small Gage Gas Appliance Orifices

Emad Y. Tanbour, Ramin K. Rahmani, Anahita Ayasoufi
Proc. ASME. IMECE2009, Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 223-232, November 13–19, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2009-11692
https://doi.org/10.1115/IMECE2009-11692
View Paper titled, Large-Eddy Simulation of Turbulent Flow Through Small Gage Gas Appliance Orifices
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Topics: Discharge coefficient, Gages, Gas appliances, Large eddy simulation, Orifices, Turbulence
Proceedings Papers

Enhancement of Temperature Blending in Convective Heat Transfer by Motionless Inserts With Variable Segment Length

Emad Y. Tanbour, Ramin K. Rahmani
Proc. ASME. IMECE2009, Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 583-593, November 13–19, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2009-11687
https://doi.org/10.1115/IMECE2009-11687
View Paper titled, Enhancement of Temperature Blending in Convective Heat Transfer by Motionless Inserts With Variable Segment Length
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Topics: Convection, Temperature
Journal Articles

Heat Flux Estimation in a Nonlinear Inverse Heat Conduction Problem With Moving Boundary

Hosein Molavi, Ramin K. Rahmani, Alireza Pourshaghaghy, Ebrahim Sharifi Tashnizi, Ali Hakkaki-Fard
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2010, 132(8): 081301.
https://doi.org/10.1115/1.4001305
Published Online: May 20, 2010
View Article titled, Heat Flux Estimation in a Nonlinear Inverse Heat Conduction Problem With Moving Boundary
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Topics: Heat conduction, Heat flux, Temperature, Inverse problems, Noise (Sound), Errors, Gradient methods
Proceedings Papers

A Numerical Study of the Thermal Performance of Two Stationary Insert Designs in Internal Compressible Flows

Emad Y. Tanbour, Ramin K. Rahmani
Proc. ASME. HT2009, Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer, 645-652, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: HT2009-88102
https://doi.org/10.1115/HT2009-88102
View Paper titled, A Numerical Study of the Thermal Performance of Two Stationary Insert Designs in Internal Compressible Flows
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Topics: Buoyancy, Compressible flow, Flow (Dynamics), Heat transfer, Design, Fluids, Pressure drop, Computational fluid dynamics, Convection, Fluid dynamics
Proceedings Papers

Heat Flux Estimation in a Nonlinear Inverse Heat Conduction Problem With Moving Boundary

Hosein Molavi, Ali Hakkaki-Fard, Alireza Pourshaghaghy, Mehdi Molavi, Ramin K. Rahmani
Proc. ASME. HT2009, Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer, 929-941, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: HT2009-88501
https://doi.org/10.1115/HT2009-88501
View Paper titled, Heat Flux Estimation in a Nonlinear Inverse Heat Conduction Problem With Moving Boundary
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Topics: Heat conduction, Heat flux
Proceedings Papers

Enhancement of Convective Heat Transfer in Internal Viscous Flows by Inserting Motionless Mixers

Ramin K. Rahmani, Anahita Ayasoufi, Theo G. Keith
Proc. ASME. HT2009, Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer, 653-665, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: HT2009-88103
https://doi.org/10.1115/HT2009-88103
View Paper titled, Enhancement of Convective Heat Transfer in Internal Viscous Flows by Inserting Motionless Mixers
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Topics: Convection, Flow (Dynamics), Heat exchangers, Shells, Temperature, Fluids, Heat transfer, Computational fluid dynamics, Cooling, Heating
Proceedings Papers

A Novel Methodology for Combined Parameter and Function Estimation Problems

Ali Hakkaki-Fard, Hosein Molavi, Ramin K. Rahmani
Proc. ASME. HT2009, Volume 1: Heat Transfer in Energy Systems; Thermophysical Properties; Heat Transfer Equipment; Heat Transfer in Electronic Equipment, 507-519, July 19–23, 2009
Publisher: American Society of Mechanical Engineers
Paper No: HT2009-88400
https://doi.org/10.1115/HT2009-88400
View Paper titled, A Novel Methodology for Combined Parameter and Function Estimation Problems
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Topics: Errors, Gradient methods, Parameter estimation
Proceedings Papers

Enhancement of Natural Convection Heat Transfer Rate in Internal Compressible Flows by Inserting Stationary Inserts

Emad Y. Tanbour, Ramin K. Rahmani
Proc. ASME. HT2008, Heat Transfer: Volume 3, 493-501, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HT2008-56078
https://doi.org/10.1115/HT2008-56078
View Paper titled, Enhancement of Natural Convection Heat Transfer Rate in Internal Compressible Flows by Inserting Stationary Inserts
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Topics: Buoyancy, Compressible flow, Flow (Dynamics), Heat transfer, Natural convection, Pipes
Proceedings Papers

Experimental Study of Natural Convection Heat Transfer in a Vertical Pipe With Stationary Inserts

Emad Y. Tanbour, Ramin K. Rahmani
Proc. ASME. HT2008, Heat Transfer: Volume 2, 83-88, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: HT2008-56079
https://doi.org/10.1115/HT2008-56079
View Paper titled, Experimental Study of Natural Convection Heat Transfer in a Vertical Pipe With Stationary Inserts
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Topics: Buoyancy, Flow (Dynamics), Heat transfer, Natural convection, Pipes
Proceedings Papers

Large-Eddy Turbulent Flow Simulation of a KOMAX Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 541-550, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55028
https://doi.org/10.1115/FEDSM2008-55028
View Paper titled, Large-Eddy Turbulent Flow Simulation of a KOMAX Static Mixer
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Topics: Eddies (Fluid dynamics), Simulation, Turbulence
Proceedings Papers

Large-Eddy Turbulent Flow Simulation of an Industrial Helical Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. HT-FED2004, Volume 4, 775-784, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56021
https://doi.org/10.1115/HT-FED2004-56021
View Paper titled, Large-Eddy Turbulent Flow Simulation of an Industrial Helical Static Mixer
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Topics: Eddies (Fluid dynamics), Simulation, Turbulence
Proceedings Papers

Stefan Number-Insensitive Numerical Simulation of the Enthalpy Method for Stefan Problems Using the Space-Time Conservation Element and Solution Element Method

Anahita Ayasoufi, Theo G. Keith, Ramin K. Rahmani
Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 69-77, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56023
https://doi.org/10.1115/HT-FED2004-56023
View Paper titled, Stefan Number-Insensitive Numerical Simulation of the Enthalpy Method for Stefan Problems Using the Space-Time Conservation Element and Solution Element Method
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Topics: Computer simulation, Enthalpy, Spacetime, Errors, Latent heat
Proceedings Papers

Numerical Simulation and Mixing Study of Non-Newtonian Fluids in an Industrial Helical Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 59-67, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56020
https://doi.org/10.1115/HT-FED2004-56020
View Paper titled, Numerical Simulation and Mixing Study of Non-Newtonian Fluids in an Industrial Helical Static Mixer
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Topics: Computer simulation, Non-Newtonian fluids
Proceedings Papers

Three-Dimensional Numerical Simulation and Performance Study of an Industrial Helical Static Mixer

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1199-1204, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45292
https://doi.org/10.1115/FEDSM2003-45292
View Paper titled, Three-Dimensional Numerical Simulation and Performance Study of an Industrial Helical Static Mixer
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Topics: Chemical reactions, Computational fluid dynamics, Computer simulation, Engineering simulation, Failure, Flow (Dynamics), Fluids, Heat, Laminar flow, Mass transfer
Proceedings Papers

A Numerical Study of Turbulent Flow in Helical Static Mixers

Ramin K. Rahmani, Anahita Ayasoufi, Theo G. Keith
Proc. ASME. FEDSM2006, Volume 2: Fora, 1-9, July 17–20, 2006
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2006-98070
https://doi.org/10.1115/FEDSM2006-98070
View Paper titled, A Numerical Study of Turbulent Flow in Helical Static Mixers
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Topics: Turbulence
Proceedings Papers

Three-Dimensional Numerical Simulation and Performance Study of an Industrial Static Mixer Using Pseudo-Plastic Fluids

Ramin K. Rahmani, Theo G. Keith, Anahita Ayasoufi
Proc. ASME. PVP2004, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 85-91, July 25–29, 2004
Publisher: American Society of Mechanical Engineers
Paper No: PVP2004-3093
https://doi.org/10.1115/PVP2004-3093
View Paper titled, Three-Dimensional Numerical Simulation and Performance Study of an Industrial Static Mixer Using Pseudo-Plastic Fluids
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Topics: Computer simulation, Fluids, Non-Newtonian fluids, Flow (Dynamics), Chemical processes, Computer software, Pressure drop, Product quality, Shear (Mechanics), Shear rate