March 26, 2021 at 8:58 ammkalelSubscriberMarch 26, 2021 at 2:10 pmRobAnsys EmployeeHave a look in the tutorials & User's Guide for the DPM model as this will go through injections etc. From there you can set up the DPM Reports to tell you whether particles pass a certain interior face. It's also possible to report the trapped particles in the same way. I'd suggest using several single size injections over the size distribution as it's easier to work out what sizes finish up where. nMarch 27, 2021 at 3:51 ammkalelSubscriberThank you and Appreciated for your Helpful Comment.nI reviewed the user guide and watched some tutorials and got idea about injecting the particle with actual timestep necessary to fill the section of the pipe.nI tracked the injected mass vs flow time in one plot window and Escaped mass Vs flow time in second window............and so on until 10 monitor.nnI have setup the all of my long tube wall condition to trap. Now Here is what I wanna do. nI tracked the mass of the particle need to fill the section 1 and I ran the simulation until that specific number time step to fill the whole first section of the tube which wall condition was set to trap initially.n I am having this problem:nNow I want to turn the wall Boundary Condition of section-1 to reflect to let the particle move to section-2 (wall condition: trap) and run the calculation with enough number of time step. nHow Can I do this to continue the cycle of moving the particle from sec-1 to sec-2? I tried without initializing the setup but the particle are not reaching section 2. I am not getting any plot data(Escaped mass Vs Flow time) that I setup for section 2 .nIsn't particle supposed to move from section-1 to section-2 after changing the sec-1 wall BC to reflect ?.nCan Somebody help me on this ? I will really appreciate thisnnThanksMarch 29, 2021 at 3:29 pmRobAnsys EmployeeAssuming there isn't something blocking them and you still have particles in the domain then yes, I'd expect them to continue. nMarch 29, 2021 at 3:51 pmmkalelSubscriberthanks for the comment.ni stopped the mass injection of the particle after certain flow time . I was expecting that the particle which are still in the domain will be pushed further down by the continuous incoming fluid. nBut after running the simulation for almost a day, they stick to the wall of section 2 and not moving to section 3 even after changing section-2 wall conditions to reflect. Is it the higher particle density issue or what do you think ? ni am guessing that particle is too heavy than fluid . So they settled down to wall of sec-2. nwhat is your idea about ? nthanks in advancenMarch 30, 2021 at 2:26 pmRobAnsys EmployeeIf the particles settle they may be stuck in the boundary layer. Read the maths/assumptions in the DPM part of the User's Guide to understand why. nViewing 5 reply threads
Ansys Innovation Space
- You must be logged in to reply to this topic.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.Trending discussions
- Suppress Fluent to open with GUI while performing in journal file
- Floating point exception in Fluent
- What are the differences between CFX and Fluent?
- Heat transfer coefficient
- Getting graph and tabular data from result in workbench mechanical
- The solver failed with a non-zero exit code of : 2
- Difference between K-epsilon and K-omega Turbulence Model
- Time Step Size and Courant Number
- Mesh Interfaces in ANSYS FLUENT
- error in cfd post
© 2023 Copyright ANSYS, Inc. All rights reserved.Ansys does not support the usage of unauthorized Ansys software. Please visit www.ansys.com to obtain an official distribution.