Learning Forum

[ryhay3]

Hi Folks I've been working on a stability assessment of a foundation pie in the seabed in Ansys Mechanical, and I've been asked to extend that to study the erosion from ocean currents around the pile. The main goal is to obtain the overall geometry of the erosion (mostly width and depth). I'm pretty new to Fluent, but here's an image of a preliminary scaled-down model I've come up with.
My professor wants me to study the long-term erosion around the pile over the span of YEARS, and I've just been diving into a number of timesteps that add up to an hour or so of flow. I could really use some advice as to whether or not such a thing is possible without a) taking up a TB of storage, b) taking days and days of processing time, or c) making my computer die from exhaustion (it's got decent specs, but still...).
Please let me know if there's any additional or clarifying information you might need, and any insights and/or suggestions would be greatly appreciated!
-Ryan

[RK]

Hi Ryan,
Here are some general suggestions.
I would not run this on my local computer. Instead run this on a HPC.
Limit the data you are writing at every time step, write only what is required. If you running short of memory, it would be good to periodically transfer the files to a local computer to save some space.
See if you can accelerate the simulation.. probably increase the flow time and change to SIMPLEC if you can. It's computationally less intensive.
Limit the number of iterations per time step to say, 10.