On the numerical implementation of the Van der Waals force in Soft-Sphere Discrete Element Models for gas-solid fluidization
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DOI: 10.1016/j.ces.2020.115794
Abstract: Abstract Attractive inter-particle forces, such as Van Der Waals forces ( vdw ), are known to strongly influence the fluidization behavior of particles classified as Geldart C-type, and recent literature suggests that vdw forces may… read more here.
Keywords: van der; der waals; gas; soft sphere ... See more keywords
Numerical investigation into the low-pressure detection sensor performance of hydrogen gas with variable soft sphere molecular model
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DOI: 10.1016/j.ijhydene.2019.12.218
Abstract: Abstract Direct Simulation Monte Carlo (DSMC) method is used to simulate the hydrogen detection process with Microscale In-Plane Knudsen Radiometric Actuator (MIKRA). The variable soft sphere (VSS) model is applied to depict molecular diffusion in… read more here.
Keywords: hydrogen; gas; soft sphere; model ... See more keywords
Alternate tangential impact treatments for the soft-sphere collision model
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DOI: 10.1080/02726351.2018.1549173
Abstract: Abstract The linear-slider-dashpot (LSD) soft sphere model is used extensively to model particle collisions in dense particle systems. The contact mechanics in the normal and tangential directions are modeled by a spring, damper, and dashpot… read more here.
Keywords: alternate tangential; impact; collision; model ... See more keywords
Thermodynamic curvature of soft-sphere fluids and solids.
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DOI: 10.1103/physreve.97.022119
Abstract: The influence of the strength of repulsion between particles on the thermodynamic curvature scalar R for the fluid and solid states is investigated for particles interacting with the inverse power (r^{-n}) potential, where r is… read more here.
Keywords: thermodynamic curvature; fluids solids; soft sphere; sphere fluids ... See more keywords