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Reza Ebrahimi
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Journal Articles

Chaotic Vibration Analysis of a Coaxial Rotor System in Active Magnetic Bearings and Contact With Auxiliary Bearings

Reza Ebrahimi, Mostafa Ghayour, Heshmatallah Mohammad Khanlo
Journal: Journal of Computational and Nonlinear Dynamics
Publisher: ASME
Article Type: Research-Article
J. Comput. Nonlinear Dynam. May 2017, 12(3): 031012.
Paper No: CND-16-1249
https://doi.org/10.1115/1.4034869
Published Online: December 5, 2016
View Article titled, Chaotic Vibration Analysis of a Coaxial Rotor System in Active Magnetic Bearings and Contact With Auxiliary Bearings
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Topics: Bearings, Bifurcation, Rotors, Vibration, Disks, Magnetic bearings, Gravity (Force)
Journal Articles

Hollow Blades for Small Wind Turbines Operating at High Altitudes

Abolfazl Pourrajabian, Peyman Amir Nazmi Afshar, Masoud Mirzaei, Reza Ebrahimi, David H. Wood
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: Research-Article
J. Sol. Energy Eng. December 2016, 138(6): 061001.
Paper No: SOL-15-1249
https://doi.org/10.1115/1.4034333
Published Online: September 2, 2016
View Article titled, Hollow Blades for Small Wind Turbines Operating at High Altitudes
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Topics: Blades, Optimization, Torque, Wind turbines
Proceedings Papers

Applying Hollow Blades for Small Wind Turbines Operating at High Altitudes

Abolfazl Pourrajabian, Reza Ebrahimi, Masoud Mirzaei, Mehdi Ahmadizadeh, David Wood
Proc. ASME. GT2015, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T46A014, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42848
https://doi.org/10.1115/GT2015-42848
View Paper titled, Applying Hollow Blades for Small Wind Turbines Operating at High Altitudes
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Topics: Blades, Wind turbines, Stress, Design, Torque, Algorithms, Centrifugal force, Chords (Trusses), Density, Euler-Bernoulli beam theory
Proceedings Papers

On the Effect of Altitude on the Performance of a Small Wind Turbine Blade

Abolfazl Pourrajabian, Masoud Mirzaei, Reza Ebrahimi, David Wood
Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT46A033, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-27335
https://doi.org/10.1115/GT2014-27335
View Paper titled, On the Effect of Altitude on the Performance of a Small Wind Turbine Blade
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Topics: Blades, Wind turbines, Geometry, Turbines, Boundary element methods, Density, Design, Generators, Genetic algorithms, Horizontal axis wind turbines
Proceedings Papers

Lean Partially Premixed Combustion Investigation of Methane Direct-Injection Under Different Characteristic Parameters

Omid Askari, Hameed Metghalchi, Siamak Kazemzadeh Hannani, Hadis Hemmati, Reza Ebrahimi
Proc. ASME. ICEF2013, Volume 1: Large Bore Engines; Advanced Combustion; Emissions Control Systems; Instrumentation, Controls, and Hybrids, V001T03A002, October 13–16, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2013-19034
https://doi.org/10.1115/ICEF2013-19034
View Paper titled, Lean Partially Premixed Combustion Investigation of Methane Direct-Injection Under Different Characteristic Parameters
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Topics: Combustion, Exhaust gas recirculation, Hydrogen, Methane, Nitrogen oxides
Journal Articles

Lean Partially Premixed Combustion Investigation of Methane Direct-Injection Under Different Characteristic Parameters

Omid Askari, Hameed Metghalchi, Siamak Kazemzadeh Hannani, Hadis Hemmati, Reza Ebrahimi
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. June 2014, 136(2): 022202.
Paper No: JERT-13-1184
https://doi.org/10.1115/1.4026204
Published Online: February 20, 2014
View Article titled, Lean Partially Premixed Combustion Investigation of Methane Direct-Injection Under Different Characteristic Parameters
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Topics: Combustion, Delays, Diluents, Hydrogen, Methane, Pressure, Temperature, Flames, Fuels
Proceedings Papers

Fundamental Study of Spray and Partially Premixed Combustion of Methane/Air Mixture

Omid Askari, Hameed Metghalchi, Ali Moghaddas, Siamak Kazemzadeh Hannani, Reza Ebrahimi
Proc. ASME. ICEF2012, ASME 2012 Internal Combustion Engine Division Fall Technical Conference, 417-426, September 23–26, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2012-92160
https://doi.org/10.1115/ICEF2012-92160
View Paper titled, Fundamental Study of Spray and Partially Premixed Combustion of Methane/Air Mixture
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Topics: Combustion, Methane, Sprays
Proceedings Papers

Determination of Wake Propagation Downstream of the Wind Turbine Using Computational Fluid Dynamics

Abolfazl Pourrajabian, Reza Ebrahimi, Masoud Mirzaei
Proc. ASME. GT2012, Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy, 979-985, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69547
https://doi.org/10.1115/GT2012-69547
View Paper titled, Determination of Wake Propagation Downstream of the Wind Turbine Using Computational Fluid Dynamics
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Topics: Computational fluid dynamics, Wakes, Wind turbines, Air flow, Flow (Dynamics), Horizontal axis wind turbines, Modeling, Parallel processing, Pressure, Steady state
Journal Articles

Fundamental Study of Spray and Partially Premixed Combustion of Methane/Air Mixture

Omid Askari, Hameed Metghalchi, Siamak Kazemzadeh Hannani, Ali Moghaddas, Reza Ebrahimi, Hadis Hemmati
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research-Article
J. Energy Resour. Technol. June 2013, 135(2): 021001.
Paper No: JERT-12-1093
https://doi.org/10.1115/1.4007911
Published Online: December 19, 2012
View Article titled, Fundamental Study of Spray and Partially Premixed Combustion of Methane/Air Mixture
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Topics: Combustion, Fuels, Methane, Pressure, Sprays, Delays, Turbulence, Flames
Proceedings Papers

Numerical Modeling of Radiative and Reactive Flow Field Around a Blunt Body at Hypersonic Regimes

Morteza Rahmanpour, Reza Ebrahimi, Mehrzad Shams
Proc. ASME. IHTC14, 2010 14th International Heat Transfer Conference, Volume 5, 749-760, August 8–13, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IHTC14-22028
https://doi.org/10.1115/IHTC14-22028
View Paper titled, Numerical Modeling of Radiative and Reactive Flow Field Around a Blunt Body at Hypersonic Regimes
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Topics: Absorption, Air flow, Approximation, Chemically reactive flow, Computer simulation, Flow (Dynamics), Flux (Metallurgy), Heat, Heat flux, Numerical analysis
eBook Chapter

Simulation of Single Nozzle Electrospray System in the Cone Jet Mode

Series: ASME Press Select Proceedings
Publisher: ASME Press
Published: 2011
https://doi.org/10.1115/1.859926.paper67
ISBN: 9780791859926
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Topics: Nozzles, Simulation
Proceedings Papers

Numerical Simulation of Cavitation Bubble Collapse in the Vicinity of a Rigid Boundary

Ehsan Samiei, Mehrzad Shams, Reza Ebrahimi
Proc. ASME. ESDA2010, ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 3, 501-506, July 12–14, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ESDA2010-24823
https://doi.org/10.1115/ESDA2010-24823
View Paper titled, Numerical Simulation of Cavitation Bubble Collapse in the Vicinity of a Rigid Boundary
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Topics: Bubbles, Cavitation, Collapse, Computer simulation, Water, Engineering simulation, Flow (Dynamics), Simulation, Water vapor
Proceedings Papers

Numerical Study on Mass Transfer Effects on Spherical Cavitation Bubble Collapse in an Acoustic Field

Ehsan Samiei, Mehrzad Shams, Reza Ebrahimi
Proc. ASME. ESDA2010, ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 3, 425-433, July 12–14, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ESDA2010-24606
https://doi.org/10.1115/ESDA2010-24606
View Paper titled, Numerical Study on Mass Transfer Effects on Spherical Cavitation Bubble Collapse in an Acoustic Field
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Topics: Acoustics, Bubbles, Cavitation, Collapse, Mass transfer, Pressure, Water, Diffusion (Physics), Dynamics (Mechanics), Engineering simulation
Proceedings Papers

Simulation of Rarefied Gas Flows in MEMS/NEMS Using a Molecular Method

Hadi Ghezel Sofloo, Reza Ebrahimi, Alireza Shams
Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1039-1044, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78015
https://doi.org/10.1115/FEDSM2009-78015
View Paper titled, Simulation of Rarefied Gas Flows in MEMS/NEMS Using a Molecular Method
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Topics: Air bearings, Knudsen number, Microelectromechanical systems, Micronozzles, Nanoelectromechanical systems, Rarefied fluid dynamics, Simulation
Proceedings Papers

Study of Temperature and Velocity Distribution of Rarefied Gas Flow in Micro-Nano Channels

Hadi Ghezel Sofloo, Alireza Shams, Reza Ebrahimi
Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1045-1050, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78017
https://doi.org/10.1115/FEDSM2009-78017
View Paper titled, Study of Temperature and Velocity Distribution of Rarefied Gas Flow in Micro-Nano Channels
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Topics: Algorithms, Cavities, Collisions (Physics), Density, Gas flow, Gas laws (Thermodynamics), Heat transfer, Knudsen number, Monte Carlo methods, Rarefied fluid dynamics
Proceedings Papers

A Refined Analytical Combustion Model for Evaluating the Effects of EGR Percentage on Improvement of Knock Characteristics of Natural Gas in Spark Ignition Engine

Mohammad Ghanbari, Hesameddin Safari, Seyed Ali Jazayeri, Reza Ebrahimi
Proc. ASME. IMECE2008, Volume 3: Combustion Science and Engineering, 45-54, October 31–November 6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2008-68607
https://doi.org/10.1115/IMECE2008-68607
View Paper titled, A Refined Analytical Combustion Model for Evaluating the Effects of EGR Percentage on Improvement of Knock Characteristics of Natural Gas in Spark Ignition Engine
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Topics: Combustion, Exhaust gas recirculation, Natural gas, Spark-ignition engine, Compression, Engines, Thermal efficiency, Computer programming, Computer software, Flames