Hello, I observed something about the setting up of the Level set physics: At 09:12, you selected Fluid 1 (phi=0) for the initial value 1, but at 11:40, you then to changed it to Fluid 2 (phi = 1) again. Recall that earlier in the video, Recall that earlier the initial value 2 was set up to have a phi = 1 value.
I also noticed it... Previously fluid1 was oil and fluid 2 was water, but initial values 1 and 2 are now both for fluid 2, i.e., water... So is there no oil now in the domain???
Thank you, sir, for the tutorial, I am wondering if I want to simulate foam's formation (gas phase dispersed in liquid phase) which physics should I select is it a two-phase flow level set ??
Thanks for your great explanation, sir. As a newbie, I want to examine the effects of the air flow through the pipe on the oil film layer on the inner surface of the pipe. Which physics would you recommend me to choose for this? Unfortunately, I did not get the results I wanted from my experiments for a long time. I will probably need 3 layers here, namely air-oil film and pipe wall.
Indeed, by coupling CFD with Heat Transfer in Fluids you get the Non isothermal flow Multiphysics node as well as the option to add a source of heat in the heat transfer in fluid physics node.
@@elnadyengineering2451 Thanks for your reply. Can you please clarify a bit more? What do you mean by CFD module- what physics in comsol should we choose? the level set is under multiphase fluid flow. I have tried selecting both level set and heat transfer, but during the phase initialization, only the physics interface allowed to solve is level set, not heat transfer. That's why I am not getting any thermal plots after the solution.
I tried using it in version 5.6 and then opened the same file using version 6.1. COMSOL gave a notification that the initial interface option has been discontinued after version 5.7. It is an obsolete option that is not required in the newer versions.@@easyhack5859
Hi, I've been trying to work with the CFD module of COMSOL for my graduation project, but I am not sure if I am doing something wrong, the conditions of my simulation are not much different from yours, but my simulation takes up to 20 hours in a Ryzen 7, 16GB RAM pc, which is not bad at all. Maybe, do you think it is possible for you to help me? I would be very thankful. :)
Hello dear watched your video and it is so useful so thank you a lot ,i have a 2d geometry where it is divided into a laminar flow and a darcy law , i don't know how to couple the the two laws , can you help me pease, thank you
Thank you so much sir, Great explanation the results I got were also really good.
Hello, I observed something about the setting up of the Level set physics: At 09:12, you selected Fluid 1 (phi=0) for the initial value 1, but at 11:40, you then to changed it to Fluid 2 (phi = 1) again. Recall that earlier in the video, Recall that earlier the initial value 2 was set up to have a phi = 1 value.
I also noticed it... Previously fluid1 was oil and fluid 2 was water, but initial values 1 and 2 are now both for fluid 2, i.e., water... So is there no oil now in the domain???
Thank you, sir, for the tutorial, I am wondering if I want to simulate foam's formation (gas phase dispersed in liquid phase) which physics should I select is it a two-phase flow level set ??
Thanks for your great explanation, sir. As a newbie, I want to examine the effects of the air flow through the pipe on the oil film layer on the inner surface of the pipe. Which physics would you recommend me to choose for this? Unfortunately, I did not get the results I wanted from my experiments for a long time. I will probably need 3 layers here, namely air-oil film and pipe wall.
Hi can I ask you some help with level set?
Can we add thermal boundary condition in level set?
Indeed, by coupling CFD with Heat Transfer in Fluids you get the Non isothermal flow Multiphysics node as well as the option to add a source of heat in the heat transfer in fluid physics node.
@@elnadyengineering2451 Thanks for your reply. Can you please clarify a bit more? What do you mean by CFD module- what physics in comsol should we choose? the level set is under multiphase fluid flow. I have tried selecting both level set and heat transfer, but during the phase initialization, only the physics interface allowed to solve is level set, not heat transfer. That's why I am not getting any thermal plots after the solution.
please send to comsol@elnadycompany.com your license number & your affiliation to forward your request to the person in charge of your country
@@elnadyengineering2451 okay...thanks.
Could you please if it is possible simulate the fluidized bed reactor solid liquid with adsorption isotherm model
Thank you
@@dr.mohanadm-ridha1130 yes COMSOL can simulate it but unfortunatly We don’t have a similar example in our library.
Hi, I am planning to model a metal drop falling on solid substrate and solidifies. Can we suggest me, which module of comsol will be useful for it.
CFD and heat trasnfer
I am not getting the 'initial interface' option in COMSOL 6.1. Can anyone please help me ??
have you found the guidance or not ? i am also not able to find it
I tried using it in version 5.6 and then opened the same file using version 6.1. COMSOL gave a notification that the initial interface option has been discontinued after version 5.7. It is an obsolete option that is not required in the newer versions.@@easyhack5859
This is COMSOL 5.5
Hi, I've been trying to work with the CFD module of COMSOL for my graduation project, but I am not sure if I am doing something wrong, the conditions of my simulation are not much different from yours, but my simulation takes up to 20 hours in a Ryzen 7, 16GB RAM pc, which is not bad at all. Maybe, do you think it is possible for you to help me? I would be very thankful. :)
Dear, could you please send us you model file on comsol@elnadycompany.com so we can check what is wrong?
Hello dear watched your video and it is so useful so thank you a lot ,i have a 2d geometry where it is divided into a laminar flow and a darcy law , i don't know how to couple the the two laws , can you help me pease, thank you
need help