COMSOL: Mass transfer with Reaction and Catalyst

In this video, we modelled a system of mass transfer with reaction (catalyst).
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[annoon-il]

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

[yufanzhang]

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?

[kermichemgp]

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

[FlyBirdx]

Is there a video on heterogeneous catalysis applications?

[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