Marios Valavanides, PhD

 Professor (Hydraulics and Flow in Porous Media)

Dept. Civil Engineering, University of West Attica

CV (6p)     Extended CV     Publication List



Res. Interests:

Fluid mechanics and, in particular, physics and multi-scale modeling of two-phase flow in porous media, continuum mechanics, and mechanics of composite materials. Main research activities are focused on the development of the DeProF theory for steady-state two-phase flow in porous media (Valavanides, 2018).

Current research efforts are towards expanding the fractional flow theory to account for flow rate dependency. and towards the recovery of the universal, relative permeability and energy efficiency maps for two-phase flow in porous media. In that context, I am also implementing energy efficiency criteria to develop a normative methodology for the effective characterization of flows (capillary/viscous) and pore networks (rock typing). All updates available at the ImproDeProF project webpage: 

Res. Expeditions:

International Collaborations:


Undergraduate @ UniWA: "Fluid Mechanics", "Hydraulics", "Open Channel Hydraulics", "Experimental Hydraulics", "Land Reclamation & Irrigation", "Management of Construction Equipment",  Hydraulics Lab

Postgraduate @ Hellenic Open Univ.:  "Construction Project Management",  @ Engineer Officers’ Technical School (EOTS) "Fluid Mechanics & Hydraulic"

Representative publications (Publication List)

  1. Valavanides, M.S., Karadimitriou, N., Steeb, H. (2022) "Flow Dependent Relative Permeability Scaling for Steady-State, Two-Phase Flow in Porous Media: Laboratory Validation on a Microfluidic Network", SPWLA 63rd Annual Logging Symposium, MS 1391, Stavanger, Norway, June 11-15,
  2. Valavanides, M.S., Mascle, M., Youssef, S., Vizika, O. (2020) "Steady-State Two-Phase Flow in Porous Media: Laboratory Validation of Flow Dependent Relative Permeability Scaling", E3S Web of Conferences 146, 03002, The Intern. Symp. of the Society of Core Analysts, SCA2019,
  3. Valavanides, M.S. (2018) "Review of steady-state two-phase flow in porous media: independent variables, universal energy efficiency map, critical flow conditions, effective characterization of flow and pore network" Transp. in Porous Media 123 (1), pp. 42-99,,, open read-only access
  4. Valavanides, M.S. (2018) "Oil fragmentation, interfacial surface transport and flow structure maps for two-phase flow in model pore networks. Predictions based on extensive, DeProF model simulations." Oil & Gas Science and Technology - Rev. IFP Energies nouvelles 73 (6), pp. 1-36, also  
  5. Valavanides, M.S., Daras, T. (2016) “Definition and Counting of Configurational Microstates in Steady-State Two-Phase Flows in Pore NetworksEntropy 18 (054), pp. 1-28,,
  6. Valavanides, M.S., Totaj, E., Tsokopoulos, M. (2016) “Energy Efficiency Characteristics in Steady-State Relative Permeability Diagrams of Two-Phase Flow in Porous MediaJournal of Petroleum Science and Engineering 147, pp. 181-201
  7. Valavanides, M.S. (2012) “Steady-State Two-Phase Flow in Porous Media: Review of Progress in the Development of the DeProF Theory Bridging Pore- to Statistical Thermodynamics- ScalesOil & Gas Science and Technology 67(5) pp. 787-804, also   



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