Space Coordinates Variable
Hi, I am trying to create a simple model Coupling Momentum transport and Conduction/Convection in 2D axisymetric: a hot air flow in a cylinder. I want to define heat losses on boundaries :...
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Hi it took me some time to figure out a potential way, basically (COMSOL developper this is for you :) because when I go into the integration and coupling variables, I constantly have to switch forth...
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Hi, Thanks a lot for your devotion and explanation in order to help me. Using Extrusion Coupling Variables on boundaries is exactly what I need. So I resolve my modelling problem. For the next time, I...
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Hi Ivar I've been trying to get my head around the various forms of coupling variables that COMSOL can provide. I had a look at the short example you provided above and I think it's helped me somewhat....
View ArticleRe: Space Coordinates Variable
Hi Ivar I've been trying to get my head around the various forms of coupling variables that COMSOL can provide. I had a look at the short example you provided above and I think it's helped me somewhat....
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Hi coupling variables are solution independent so they can be used for any case I would say. Now projection and extrusion coupling variables are (I find) less intuitive, and trickier to apply, but...
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Thanks for the reply, I appreciate the advice. I'm starting to wonder if indeed a coupling variable is what I require for my situation. Essentially, what I need COMSOL to do is allow an outflow...
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Hi there is a wall offset value somewhere but fluidics is not my main domain, so I have not used it and do no know if its related to what you are looking for. Check the doc -- Good luck Ivar
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Hi! I am having some trouble with co-ordinate transformations in comsol. I have a 3D simulation that I've done using cartesian co-ordinates. I want to be abe able to visualize my results in a...
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Hi you cannot refer to your corrdinate system by drop downs in the postprocessing, BUT you CAN access them by there names sys2.r, sys2.phi etc (in v4, forgotten their naming in 3.5 but there are there...
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Thanks Ivar. I was doing that indeed. Putting in expressions such as x^2 + y^2 for obtaining the radial component. Not really clear about how to obtain the tangential components of my velocity fields....
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