Omid Ghasemi Fare

Assoc Professor

Dr. Ghasemi-Fare has received his B.Sc. and M.Sc. in Civil and Environmental Engineering respectively, in 2008 and 2010 from Sharif University of Technology, Iran. He got his Ph.D. in the field of Geotechnical Engineering with a Ph.D. minor in Computational Science at the Pennsylvania State University in 2015. After completing the Ph.D., he joined the faculty at the Civil and Environmental Engineering department in August 2015. His research focuses on geothermal energy, thermo-hydro-mechanical modeling and characterization of soils, unsaturated soil, heat and mass transport in porous media, transportation geotechnics and geotechnical earthquake engineering. He has both experimental and numerical research experiences. His research has been sponsored by the National Science Foundation, the US Department of Transportation, Kentucky Transportation Cabinet, NSF EPSCoR at the Kentucky, and CODRE.


  • B.S. in Civil Engineering, Sharif University of Technology, 2008
  • M.S. in Geotechnical Engineering, Sharif University of Technology, 2010
  • Ph.D. in Geotechnical Engineering, Pennsylvania State University, 2015


Numerical Modeling of Vertical Geothermal Heat Exchangers Using Finite Difference and Finite Element Techniques- 2015

This paper presents the development of a 2D finite difference modelling approach and a 3D finite element numerical model for simulating vertical geothermal heat exchangers (GHEs), explaining the theory governing the thermal processes, element discretization and the selection of the appropriate boundary conditions. Both of these models provide fully coupled solutions for the fluid flow in the circulation pipes and the thermal processes between the fluid and solid domains (pipes, grout and soil). The numerical models are verified with a field test and subsequently they are utilized to simulate the thermal performance of a borehole heat exchanger integrated with a single U-tube. Two different thermal operation cases are analyzed; a constant rate heat injection and a fluid injection at a constant temperature. A model validation study is also carried out for the constant rate heat injection case by comparing the numerical results with the available analytical solution for a finite line source. Furthermore, effective thermal conductivity of the ground back-calculated from the results of the numerical analyses is compared with the value used in the numerical models. Comparison of the results obtained from both numerical models and validating model predictions with the analytical solution confirms that both FE and FD models can accurately simulate the heat transfer mechanisms governing the thermal performance of GHE systems.

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