All Outputs (9)

Modelling the influence of mechanical-ecohydrological feedback on the nonlinear dynamics of peatlands (2023)
Journal Article
Mahdiyasa, A. W., Large, D. J., Muljadi, B. P., & Icardi, M. (2023). Modelling the influence of mechanical-ecohydrological feedback on the nonlinear dynamics of peatlands. Ecological Modelling, 478, Article 110299. https://doi.org/10.1016/j.ecolmodel.2023.110299

Peatlands are complex systems that exhibit nonlinear dynamics due to internal and external feedback mechanisms. However, the feedback of vegetation on peat volume changes that potentially affect peatland dynamics is not well understood. Here, we anal... Read More about Modelling the influence of mechanical-ecohydrological feedback on the nonlinear dynamics of peatlands.

MPeat—A fully coupled mechanical-ecohydrological model of peatland development (2021)
Journal Article
Mahdiyasa, A. W., Large, D. J., Muljadi, B. P., Icardi, M., & Triantafyllou, S. (2022). MPeat—A fully coupled mechanical-ecohydrological model of peatland development. Ecohydrology, 15(1), Article e2361. https://doi.org/10.1002/eco.2361

Mathematical models of long-term peatland development have been produced to analyse peatland behaviour. However, existing models ignore the mechanical processes that have the potential to provide important feedback. Here, we propose a one-dimensional... Read More about MPeat—A fully coupled mechanical-ecohydrological model of peatland development.

Pore-Scale Modeling of Fluid–Rock Chemical Interactions in Shale during Hydraulic Fracturing (2021)
Journal Article
Fazeli, H., Vandeginste, V., Rabbani, A., Babaei, M., & Muljadi, B. (2021). Pore-Scale Modeling of Fluid–Rock Chemical Interactions in Shale during Hydraulic Fracturing. Energy and Fuels, 35(13), 10461-10474. https://doi.org/10.1021/acs.energyfuels.0c02975

During the hydraulic fracturing process in unconventional shale gas reservoirs, chemical interactions between the hydraulic fracturing fluid (HFF) and the shale rock could result in mineral precipitation and dissolution reactions, potentially influen... Read More about Pore-Scale Modeling of Fluid–Rock Chemical Interactions in Shale during Hydraulic Fracturing.

The architectural design of smart ventilation and drainage systems in termite nests (2019)
Journal Article
Singh, K., Muljadi, B. P., Raeini, A. Q., Jost, C., Vandeginste, V., Blunt, M. J., …Singh, K. (2019). The architectural design of smart ventilation and drainage systems in termite nests. Science Advances, 5(3), Article eaat8520. https://doi.org/10.1126/sciadv.aat8520

Termite nests have been widely studied as effective examples for ventilation and thermoregulation; however, the mechanisms by which the nest properties are controlled by the micro-structure of the outer walls remain unclear. Here, we combine multi-sc... Read More about The architectural design of smart ventilation and drainage systems in termite nests.

Modelling and upscaling of transport in carbonates during dissolution: validation and calibration with NMR experiments (2017)
Journal Article
Muljadi, B. P., Bijeljic, B., Blunt, M. J., Colbourne, A., Sederman, A. J., Mantle, M. D., & Gladden, L. F. (in press). Modelling and upscaling of transport in carbonates during dissolution: validation and calibration with NMR experiments. Journal of Contaminant Hydrology, https://doi.org/10.1016/j.jconhyd.2017.08.008

We present an experimental and numerical study of transport in carbonates during dissolution and its upscaling from the pore (∼ μm) to core (∼ cm) scale. For the experimental part, we use nuclear magnetic resonance (NMR) to probe molecular displaceme... Read More about Modelling and upscaling of transport in carbonates during dissolution: validation and calibration with NMR experiments.

Multiscale method for Oseen problem in porous media with non-periodic grain patterns (2016)
Journal Article
Muljadi, B. P. (2017). Multiscale method for Oseen problem in porous media with non-periodic grain patterns. Transport in Porous Media, 116(1), 1-18. https://doi.org/10.1007/s11242-016-0762-3

Accurate prediction of the macroscopic flow parameters needed to describe flow in porous media relies on a good knowledge of flow field distribution at a much smaller scale---in the pore spaces. The extent of the inertial effect in the pore spaces ca... Read More about Multiscale method for Oseen problem in porous media with non-periodic grain patterns.

Nonconforming multiscale finite element method for Stokes flows in heterogeneous media. Part I: Methodologies and numerical experiments (2015)
Journal Article
Muljadi, B. P., Narski, J., Lozinski, A., & Degond, P. (in press). Nonconforming multiscale finite element method for Stokes flows in heterogeneous media. Part I: Methodologies and numerical experiments. Multiscale Modeling and Simulation: A SIAM Interdisciplinary Journal, 13(4), https://doi.org/10.1137/14096428X

The multiscale finite element method (MsFEM) is developed in the vein of the Crouzeix--Raviart element for solving viscous incompressible flows in genuine heterogeneous media. Such flows are relevant in many branches of engineering, often at multiple... Read More about Nonconforming multiscale finite element method for Stokes flows in heterogeneous media. Part I: Methodologies and numerical experiments.

The impact of porous media heterogeneity on non-Darcy flow behaviour from pore-scale simulation (2015)
Journal Article
Muljadi, B. P., Blunt, M. J., Raeini, A. Q., & Bijeljic, B. (2016). The impact of porous media heterogeneity on non-Darcy flow behaviour from pore-scale simulation. Advances in Water Resources, 95, https://doi.org/10.1016/j.advwatres.2015.05.019

The effect of pore-scale heterogeneity on non-Darcy flow behaviour is investigated by means of direct flow simulations on 3-D images of a beadpack, Bentheimer sandstone and Estaillades carbonate. The critical Reynolds number indicating the cessation... Read More about The impact of porous media heterogeneity on non-Darcy flow behaviour from pore-scale simulation.

Crouzeix-Raviart MsFEM with bubble functions for diffusion and advection-diffusion in perforated media (2015)
Journal Article
Degond, P., Lozinski, A., Muljadi, B. P., & Narski, J. (in press). Crouzeix-Raviart MsFEM with bubble functions for diffusion and advection-diffusion in perforated media. Communications in Computational Physics, 17(4), https://doi.org/10.4208/cicp.2014.m299

The adaptation of Crouzeix-Raviart finite element in the context of multi-scale finite element method (MsFEM) is studied and implemented on diffusion and advection-diffusion problems in perforated media. It is known that the approximation of boundary... Read More about Crouzeix-Raviart MsFEM with bubble functions for diffusion and advection-diffusion in perforated media.