Permeability of packs of polydisperse hard spheres (2021)
Journal Article
Vasseur, J., Wadsworth, F. B., Coumans, J. P., & Dingwell, D. B. (2021). Permeability of packs of polydisperse hard spheres. Physical Review E, 103(6), https://doi.org/10.1103/physreve.103.062613

The permeability of packs of spheres is important in a wide range of physical scenarios. Here, we create numerically generated random periodic domains of spheres that are polydisperse in size and use lattice-Boltzmann simulations of fluid flow to det... Read More about Permeability of packs of polydisperse hard spheres.

Quantifying Microstructural Evolution in Moving Magma (2020)
Journal Article
Dobson, K. J., Allabar, A., Bretagne, E., Coumans, J., Cassidy, M., Cimarelli, C., …Wanelik, K. (2020). Quantifying Microstructural Evolution in Moving Magma. Frontiers in Earth Science, 8, https://doi.org/10.3389/feart.2020.00287

Many of the grand challenges in volcanic and magmatic research are focused on understanding the dynamics of highly heterogeneous systems and the critical conditions that enable magmas to move or eruptions to initiate. From the formation and developme... Read More about Quantifying Microstructural Evolution in Moving Magma.

An experimentally validated numerical model for bubble growth in magma (2020)
Journal Article
Coumans, J., Llewellin, E., Wadsworth, F., Humphreys, M., Mathias, S., Yelverton, B., & Gardner, J. (2020). An experimentally validated numerical model for bubble growth in magma. Journal of Volcanology and Geothermal Research, 402, Article 107002. https://doi.org/10.1016/j.jvolgeores.2020.107002

Volcanic eruptions are driven by the growth of gas bubbles in magma. The timing and rate of bubble growth are important because they determine whether enough gas pressure can develop to fragment the melt. Bubbles grow in response to decompression and... Read More about An experimentally validated numerical model for bubble growth in magma.