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Ramin Rahmani
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Journal Articles

Air Foil Thrust and Journal Bearing Coatings: A Review

Nick Morris, Ramin Rahmani, Homer Rahnejat, Bharat Bhushan
Journal: Journal of Tribology
Publisher: ASME
Article Type: Review Articles
J. Tribol. January 2025, 147(1): 010801.
Paper No: TRIB-24-1099
https://doi.org/10.1115/1.4065986
Published Online: September 9, 2024
View Article titled, Air Foil Thrust and Journal Bearing Coatings: A Review
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Topics: Coatings, Foil bearings, Temperature, Thrust, Journal bearings, Coating processes
Journal Articles

Thermal Analysis of an Oil Jet-Dry Sump Transmission Gear Under Mixed-Elastohydrodynamic Conditions

Ehsan Fatourehchi, Hamed Shahmohamadi, Mahdi Mohammadpour, Ramin Rahmani, Stephanos Theodossiades, Homer Rahnejat
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. September 2018, 140(5): 051502.
Paper No: TRIB-17-1061
https://doi.org/10.1115/1.4039567
Published Online: April 26, 2018
View Article titled, Thermal Analysis of an Oil Jet-Dry Sump Transmission Gear Under Mixed-Elastohydrodynamic Conditions
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Topics: Energy dissipation, Gears, Heat, Lubricants, Temperature, Gear teeth, Friction
Proceedings Papers

Cavitating Flow in Engine Piston Ring-Cylinder Liner Conjunction

Hamed Shahmohamadi, Ramin Rahmani, Homer Rahnejat, Paul King, Colin Garner
Proc. ASME. IMECE2013, Volume 7A: Fluids Engineering Systems and Technologies, V07AT08A056, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-62395
https://doi.org/10.1115/IMECE2013-62395
View Paper titled, Cavitating Flow in Engine Piston Ring-Cylinder Liner Conjunction
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Topics: Cylinders, Engines, Flow (Dynamics), Pistons, Cavitation, Compression, Bearings, Bubbles, Computational fluid dynamics, Damage
Proceedings Papers

Meniscus Formation in the Piston Compression Ring-Cylinder Liner Inlet Zone

Ramin Rahmani, Gema Styles, Homer Rahnejat
Proc. ASME. ICEF2012, ASME 2012 Internal Combustion Engine Division Fall Technical Conference, 935-939, September 23–26, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2012-92123
https://doi.org/10.1115/ICEF2012-92123
View Paper titled, Meniscus Formation in the Piston Compression Ring-Cylinder Liner Inlet Zone
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Topics: Compression, Cylinders, Pistons, Lubricants, Lubrication, Clearances (Engineering), Kinematics, Solids, Bridges (Structures), Coatings
Proceedings Papers

Performance Evaluation of Piston Compression Ring Through Accelerated Wear in Engine Tests

Nicholas Morris, Homer Rahnejat, Ramin Rahmani, Paul King, Brian Fitzsimons
Proc. ASME. ICES2012, ASME 2012 Internal Combustion Engine Division Spring Technical Conference, 1003-1008, May 6–9, 2012
Publisher: American Society of Mechanical Engineers
Paper No: ICES2012-81201
https://doi.org/10.1115/ICES2012-81201
View Paper titled, Performance Evaluation of Piston Compression Ring Through Accelerated Wear in Engine Tests
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Topics: Compression, Engines, Performance evaluation, Pistons, Wear, Friction, Lubricants, Tribology, Bridges (Structures), Coating processes
Proceedings Papers

Computation of Velocity Profiles and Pressure Coefficients for a Laminar Flow of Air Over Staggered Array of Tubes

Ramin Rahmani, Ahad Ramezanpour, Iraj Mirzaee, Hassan Shirvani
Proc. ASME. HT2005, Heat Transfer: Volume 4, 479-484, July 17–22, 2005
Publisher: American Society of Mechanical Engineers
Paper No: HT2005-72791
https://doi.org/10.1115/HT2005-72791
View Paper titled, Computation of Velocity Profiles and Pressure Coefficients for a Laminar Flow of Air Over Staggered Array of Tubes
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Topics: Computation, Laminar flow, Pressure
Proceedings Papers

Three Dimensional Numerical Modelling of Staggered Tube Bundle Turbulent Crossflow in Duct

Ahad Ramezanpour, Hassan Shirvani, Ramin Rahmani, Iraj Mirzaee
Proc. ASME. HT2005, Heat Transfer: Volume 3, 609-617, July 17–22, 2005
Publisher: American Society of Mechanical Engineers
Paper No: HT2005-72532
https://doi.org/10.1115/HT2005-72532
View Paper titled, Three Dimensional Numerical Modelling of Staggered Tube Bundle Turbulent Crossflow in Duct
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Topics: Ducts, Modeling, Turbulence
Proceedings Papers

Optimization of Partially Textured Parallel Thrust Bearings With Square-Shaped Micro-Dimples

Ramin Rahmani, Ayoub Shirvani, Hassan Shirvani
Proc. ASME. IJTC2006, Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology, 1169-1174, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12167
https://doi.org/10.1115/IJTC2006-12167
View Paper titled, Optimization of Partially Textured Parallel Thrust Bearings With Square-Shaped Micro-Dimples
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Topics: Friction, Optimization, Stress, Thrust bearings, Bearings, Shapes, Tribology