Multiphase flow dynamics collective behavior e particle-scale processes
3
Create a "pore"- two parallel plates a drop on a solid surface, sheared between two plates
4
Elementary molecular dynamics ...
5
Lennard-Jones liquid calibrations...
6
Do the drops slide? ... Yes, they do
7
Scale-up from "micro" to "meso"
8
LBM-immiscible liquids - phase fields
9
Simulating wettability - boundary conditions
10
Drop sliding on a substrate
11
Molecular versus continuum simulations
12
A different boundary condition
13
Non-equilibrium boundary condition
14
Liquid-liquid dispersions (emulsions)
15
Lower Y offset needs higher resolutio
16
Evolution of film thickness
17
Coalescence of charged drops
18
Sedimentation & fluidization
19
Structure in fluid-solids flow
20
Reality check for simulations a very neat experiment
21
Some simulation details
22
Particle kinematics & dynamics
23
Co-fluidization: cylinders & spheres
24
Fluidization of hollow cylinders
25
Flow inside the hollow cylinders
26
Anything worth remembering?
Description:
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Explore multiphase flow dynamics across various scales in this virtual seminar presented by Prof. Jos Derksen from the University of Aberdeen. Delve into particle-scale processes and collective behavior, examining phenomena such as drop sliding on solid surfaces and liquid-liquid dispersions. Learn about simulation techniques including molecular dynamics, Lattice Boltzmann Method (LBM), and continuum approaches. Investigate wettability, boundary conditions, and the evolution of film thickness in multiphase systems. Analyze sedimentation, fluidization, and the structure of fluid-solid flows, including co-fluidization of cylinders and spheres. Gain insights into particle kinematics and dynamics, and discover how simulations compare to experimental results in this comprehensive exploration of multiphase flow phenomena.