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Journal Articles

Experimental Investigation on Flows in a Corrugated Channel

Efe Ünal, Hojin Ahn, Esra Sorguven
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. July 2016, 138(7): 070908.
Paper No: FE-15-1461
https://doi.org/10.1115/1.4032754
Published Online: April 22, 2016
View Articletitled, Experimental Investigation on Flows in a Corrugated Channel
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Topics: Flow (Dynamics), Reynolds number, Vortices, Stress, Turbulence, Fluids, Flow visualization
Includes: Supplementary data
Proceedings Papers

Experimental Investigation on the Condensation Efficiency of Humid Air in a Cross-Flow Condenser

Hojin Ahn, Burhan Gul, Yavuz Sahin, Onur Hartoka
Proc. ASME. IMECE2013, Volume 8B: Heat Transfer and Thermal Engineering, V08BT09A070, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-64331
https://doi.org/10.1115/IMECE2013-64331
View Paper titled, Experimental Investigation on the Condensation Efficiency of Humid Air in a Cross-Flow Condenser
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Topics: Condensation, Condensers (steam plant), Cross-flow, Steam, Flow (Dynamics), Cooling, Heat, Air flow, Flat plates, Latent heat
Proceedings Papers

Experimental Investigation on Pressure Drop in Corrugated Pipes

Hojin Ahn, Ibrahim Uslu
Proc. ASME. IMECE2013, Volume 7A: Fluids Engineering Systems and Technologies, V07AT08A050, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-66061
https://doi.org/10.1115/IMECE2013-66061
View Paper titled, Experimental Investigation on Pressure Drop in Corrugated Pipes
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Topics: Pipes, Pressure drop, Friction, Boilers, Flow (Dynamics), Pumps, Reynolds number, Solar energy, Stainless steel, Turbulence
Proceedings Papers

Computational Investigation of Vortex Structure in the Corrugated Channel

Efe Unal, Esra Sorguven, Hojin Ahn
Proc. ASME. IMECE2013, Volume 7A: Fluids Engineering Systems and Technologies, V07AT08A051, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-66062
https://doi.org/10.1115/IMECE2013-66062
View Paper titled, Computational Investigation of Vortex Structure in the Corrugated Channel
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Topics: Boundary layers, Cavities, Computational fluid dynamics, Engineering simulation, Flow (Dynamics), Friction, Inflow, Large eddy simulation, Outflow, Particulate matter
Proceedings Papers

Experimental Investigation of Vortex Structure in the Corrugated Channel

Efe Unal, Hojin Ahn, Esra Sorguven, M. Zafer Gul
Proc. ASME. IMECE2013, Volume 7A: Fluids Engineering Systems and Technologies, V07AT08A052, November 15–21, 2013
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2013-66063
https://doi.org/10.1115/IMECE2013-66063
View Paper titled, Experimental Investigation of Vortex Structure in the Corrugated Channel
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Topics: Vortices, Flow (Dynamics), Reynolds number, Design, Geometry, Pipes, Reflection, Stainless steel, Turbulence
Journal Articles

Wave Propagation in Rapid Granular Flows

Hojin Ahn
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. September 2013, 80(5): 051008.
Paper No: JAM-12-1183
https://doi.org/10.1115/1.4023538
Published Online: July 12, 2013
View Articletitled, Wave Propagation in Rapid Granular Flows
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Topics: Flow (Dynamics), Particulate matter, Shock (Mechanics), Simulation, Simulation results, Temperature, Wave propagation, Waves, Cylinders, Granular materials
Proceedings Papers

Flow Simulation and Optimization of a Left Ventricular Assist Device

Esra Sorguven, Namik Ciblak, A. Fethi Okyar, Mehmet A. Akgun, A. Nilufer Egrican, K. Koray Safak, Hojin Ahn, I˙smail Lazoglu, Suha Kucukaksu
Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 1401-1407, November 11–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2007-41747
https://doi.org/10.1115/IMECE2007-41747
View Paper titled, Flow Simulation and Optimization of a Left Ventricular Assist Device
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Topics: Flow simulation, Optimization, Ventricular assist devices, Pumps, Flow (Dynamics), Blood, Design, Damage, Pressure, Aorta
Proceedings Papers

Discharge of Granular Materials From Hoppers With Various Exit Geometries

Hojin Ahn, Erkan Yilmaz, Mustafa Yilmaz, Abdulcelil Bugutekin
Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 1421-1426, November 11–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2007-41804
https://doi.org/10.1115/IMECE2007-41804
View Paper titled, Discharge of Granular Materials From Hoppers With Various Exit Geometries
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Topics: Discharge coefficient, Glass beads, Granular materials, Jets, Nozzles, Particulate matter
Journal Articles

Computer Simulation of Rapid Granular Flow Through an Orifice

Hojin Ahn
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. January 2007, 74(1): 111–118.
https://doi.org/10.1115/1.2187529
Published Online: January 18, 2006
View Articletitled, Computer Simulation of Rapid Granular Flow Through an Orifice
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Topics: Flow (Dynamics), Particulate matter, Simulation, Temperature
Journal Articles

Analysis of the Fully Developed Chute Flow of Granular Materials

Hojin Ahn, Christopher E. Brennen, Rolf H. Sabersky
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. March 1992, 59(1): 109–119.
https://doi.org/10.1115/1.2899415
Published Online: March 1, 1992
View Articletitled, Analysis of the Fully Developed Chute Flow of Granular Materials
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Topics: Flow (Dynamics), Granular materials, Boundary-value problems, Temperature, Computer simulation, Constitutive equations, Heat conduction, Particulate matter
Journal Articles

Measurements of Velocity, Velocity Fluctuation, Density, and Stresses in Chute Flows of Granular Materials

Hojin Ahn, Christopher E. Brennen, Rolf H. Sabersky
Journal: Journal of Applied Mechanics
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. September 1991, 58(3): 792–803.
https://doi.org/10.1115/1.2897265
Published Online: September 1, 1991
View Articletitled, Measurements of Velocity, Velocity Fluctuation, Density, and Stresses in Chute Flows of Granular Materials
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Topics: Density, Flow (Dynamics), Granular materials, Stress, Particulate matter, Rheology, Probes, Displacement, Fibers, Instrumentation