سومین سخنران کلیدی همایش
1396-09-10
سومین سخنران کلیدی همایش

Goodarz Ahmadi

 

Dr. Ahmadi is a Clarkson Distinguished Professor, and Robert R. Hill Professor of Mechanical and Aeronautical Engineering at Clarkson University.  He has obtained his Ph.D. from Purdue University. He is a Fellow of ASME, ISME and ISCE and an honorary member of Academy of Science of Iran. He was also named the Chehreh Mandegar in Mechanical Engineering in 2003. He has received numerous teaching and research award including the ASME Fluid Engineering Freeman Scholar Award in 2016. He has four patents and authored three books and over 640 publications in archival journals. He also has made more than 1200 presentations including more than 40 plenary and keynotes at national and international technical conferences, and has given more than 160 invited talks and short courses at other institutions.  He has been serving as the editor, editorial board and/or editorial advisor board of fifteen international journals. His administrative positions included: MAE Department Chair 1992-1995, Associate Dean of Engineering 2003-2005, Interim Vice Provost for Research 2004-2005, and Dean of Engineering 2005-2015 at Clarkson University.  Earlier he was a professor at Shiraz University and served as Dean of School of Engineering (1979-1980) and Associate Dean (1975-1977). His research interests include multiphase flows, particle transport and deposition, turbulence, flow control, granular flows, air pollution, flow through porous and fractured media, random vibrations and structural mechanics.  His research has been supported by the National Science Foundation, the Environmental Protection Agency, Department of Energy, NASA, AFOSR, NYSTAR, GE, Corning, IBM, Xerox, Kodak and Dura Pharmaceutical.

 

TOPIC 

Multiphase Flows through Porous and Fractured Media

 

Goodarz Ahmadi

 

Department of Mechanical and Aeronautical Engineering

Clarkson University, Potsdam, NY 13699

ahmadi@clarkson.edu

 

 

 

 

 

Abstract 

An overview of multiphase flows in porous media and rock fractures is presented. Both computational models as well as experimental techniques for analyzing multiphase flows in porous media including geological formations are described.  Particular attention was given to gas-liquid flows in subsurface environments.  It is shown that the penetration of injected gas into a brine saturated porous media lead to fractal interfaces.  The geological formation typically contains many fractures.  The procedure for analyzing the flows in fractured rock is discussed.  In particular, the process for CT scanning of rock fracture for detailed flow analysis are presented in details and sample computational model results are presented. The simulation results show that bulk of the flow in fractured porous media is transmitted through the fractures. The effect of matrix permeability on the flow is also studied and simplified models are proposed.  Applications of the study to carbon sequestration and oil and gas production are also discussed.

 

Keywords: Fracture flows, multiphase flows, porous media, fractured media