Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Convection-Diffusion-Reaction

Please login with a confirmed email address before reporting spam

Hi,

I am completely new to Comsol and modelling. I am trying to recreate a published model that uses convective diffusive transport of a molecule that binds to different surface receptors. I am following the Transport and Adsorption Tutorial.

www.comsol.com/model/transport-and-adsorption-5

I want to expand this so that there are multiple distinct active sites where the reactive species can bind to on the surface. These are represented as ODEs

There is also no diffusion through the boundary surface only binding at the surface.



1 Reply Last Post 2017年3月8日 GMT-5 01:12

Please login with a confirmed email address before reporting spam

Posted: 7 years ago 2017年3月8日 GMT-5 01:12
Hi

I was considering same kind of a problem where metal is deposited on the surface. My solution was to use the Surface Reactions node. There you can add as many reactions as you wish, each of them with individual binding constants. I defined the reaction rates as variables and used them in the Flux boundary condition in the Transport of Dilutes Species (diffusion) node. In the Surface Reactions node, they are the used in the item "Reactions" as such.

Best wishes
Lasse
Hi I was considering same kind of a problem where metal is deposited on the surface. My solution was to use the Surface Reactions node. There you can add as many reactions as you wish, each of them with individual binding constants. I defined the reaction rates as variables and used them in the Flux boundary condition in the Transport of Dilutes Species (diffusion) node. In the Surface Reactions node, they are the used in the item "Reactions" as such. Best wishes Lasse

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.