# Welcome

Our group has the expertise, and in-house codes, on several areas of computational, physical and theoretical modelling of complex processes commonly found in Civil, Environmental and Mining Engineering. We follow a multi-physics, multi-scale approach for most of our research outputs. We aim to combine several physical layers (water physics, porous media physics, solid mechanics, etc) to produce models at the pore/grain scale. The behaviour at this scale is observed, and constitutive relations are derived for larger scales such as a field site. During all this process, experiments and field observations are conducted and their data is compared with our modelling efforts for validation.

The multi-scale, multi-physics modelling approach. Our research start with observations at the field scale, followed by experiments and pore/grain-scale simulations which later feeds information for macroscopic models for the field scale. This approach ensures both predictability and scientific understanding.

For pore/grain-scale modelling we use computational tools such as the Discrete Element Method (DEM) and the Lattice Boltzmann Method (LBM). For upscaling the physics from the pore scale to the macro scale, continuum and statistical mechanics are often used. Finally, for large scale simulations, we have developed methods such as Material Point Method (MPM) and Smoothed Particle Hydrodynamics (SPH).

## News

** Fellow of the Royal Society, Prof. Huppert of Cambridge University gave a speech on lava flow theory (22/10/19) **

Prof. Huppert gave a lecture on his research on lava flow theory. Starting with a series of classroom experiments, a mathematical model to explain and predict the flow velocities was presented and validation examples were shown. After introducing some key points of his theory, some challenges and potential research routes were also showcased.

## Latest paper

C. S. From, E. Sauret, S. A. Galindo-Torres, and Y. T. Gu. Application of high-order lattice Boltzmann pseudopotential models. Physical Review E (2020) link

C. S. From, E. Sauret, S. A. Galindo-Torres, and Y. T. Gu. Interaction pressure tensor on high-order lattice Boltzmann models for nonideal fluids. Physical Review E (2020) link

Jiawei Li, Zi Li, Wanju Yuan, Ximing Lei, Sergio Andres Galindo Torres, Claudia Cherubini, Alexander Scheuermann, Ling Li. Numerical investigation of liquid and supercritical CO2 flow behaviors through 3D self-affine rough fractures. Fuel (2019) link

Zi Li, Sergio Galindo-Torres, Guanxi Yan, Alexander Scheuermann and Ling Li. Pore-Scale Simulations of Simultaneous Steady-State Two-Phase Flow Dynamics Using a Lattice Boltzmann Model: Interfacial Area, Capillary Pressure and Relative Permeability. Transport in Porous Media (2019) link

S. Palma, S.A. Galindo Torres, A. Delonca, A.Scheuermann, M.Ruest, D.Finn. Universal laws for air velocities in airblast events during block caving. International Journal of Rock Mechanics and Mining Sciences (2019)link