Hi All,
I’m interested in simulating bubble raft dynamics using LAMMPS. I’ve searched for information on similar fluid systems simulations done by others, but I haven’t found any evidence that such a simulation is possible in LAMMPS, or what adjustments would be needed to make it feasible. I would appreciate any guidance or assistance. Thank you,
Thank You.
JLI
You are asking the wrong way around. First you need to state what kind of model you want to apply and how you can represent your system of interest in a particle based simulation in general. This is a question of searching the published literature, but without limiting it to LAMMPS.
Only then can you ask about how the features you need can be implemented or existing features in LAMMPS be used.
Thank you for your reply.
I have a brief description of what I am trying to model from an abstract of a talk presented at the APS March Meeting: “Turbulent liquid jets impacting a liquid surface can entrain air and push bubbles underneath the liquid. The entrained air eventually rises to the free surface and may either form a collective “raft” of bubbles, or remain as isolated islands of bubbles. The stability and structure of these bubble rafts are determined by the turbulence and the surface tension of the air-water interface. Here we explore the statistical behavior of 2D bubble rafts formed by an impinging jet, and the gravity-capillary waves emanating from the intermittent coalescence and bursting of the bubbles.”
Based on the sample of literature I’ve reviewed so far, it seems like simulating these systems using LAMMPS hasn’t been done yet.
I’m interested in understanding how such a system could be represented in a particle-based simulation and what kind of model might be suitable for capturing the dynamics of bubble rafts.
If you have any insights or suggestions on how to approach this problem from a modeling perspective, especially using particle-based methods, I would greatly appreciate it.
JLI
Please re-read what I already told you. You have to study the published literature for what kind of model has been used to represent your system of interest and you must not restrict this to using LAMMPS. LAMMPS is just a tool, not the model or method. LAMMPS implements many models, but so do other simulation software packages. Only after you have found out how you can “mathematically” represent your system of interest, you can look into which software is suitable by providing a compatible model. Up to that point, your question is a question specific to your area of research and not a LAMMPS question.
P.S.: and here is another consideration. If there is so little published literature about a model and if I were somebody knowing how to do these simulations (with LAMMPS or otherwise), I would not likely tell you in a public forum how to do them. Given how competitive the business of research is these days, I would wait until I have a bunch of publications out that would cover that area of research well enough, that you would not have much left to work on and publish about.
What you are asking about is not just a “which command do I need to use to get X?” type question, but you are asking somebody to advise you on your research. So why would somebody want to do all the work without the rewards?
Thanks for the suggestions. I am kind of new to the field of modeling, but I will definitely look into coming up with a sound mathematical model and explore different software options.