COMSOL: Mass transfer with Reaction and Catalyst

In this video, we modelled a system of mass transfer with reaction (catalyst).
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/ @engineeringtraining2024

[@annoon-i1l]

all thanks to you, actually your videos are very very attractive

[@kermichemgp]

many thanks for valuable videos, what is the difference between tranport of concentated and dilueted species

[@engineeringtraining2024]

If the concentration of the solute is low, you can choose the diluted model. If the concentration of the solvent and the solution are close, you should use the concentration model.

[@yufanzhang1263]

Hello, I was desperately searching for a tutorial on axisymmetry tutorial and thank god I found you. I have met a problem with my COMSOL model. I need to model a nanoparticle in electrolyte. Since the nanoparticle is a sphere, I reduce the conputational cost by using axisymmetry instead of 3D. I set the a surface charge density to the nanoparticle surface, and solve for ion distribution. To my surprise, the result is exactly the same as the result obtained with a simple 2D geometry. In short, my 2D axisymmetry result is same as 2D result. But theoretically, they should be different. The 2D axisymmetry result should be identical to a slice of 3D result. I have been troubled by this problem for two weeks. What would you think is the cause and what would you recommend me to try?

[@engineeringtraining2024]

To model a sphere, you need to define a 3D domain or use 2D axisymmetric, though it depends on your boundary conditions.

[@FlyBirdx]

Is there a video on heterogeneous catalysis applications?

[@engineeringtraining2024]

Soon.

[@brie6377]

@@engineeringtraining2024did you make it?

[@Shenzhenlife.]

@@engineeringtraining2024 WAITING

[@finalmusicpro]

Tell me how to simulate the penetration of a drug into a biological object; in this case, you need to use a magnetic field for better penetration efficiency

[@engineeringtraining2024]

Yes, it is possible.