Comsol Modeling of Convection in Glass Optical Fiber

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A user seeks assistance in developing a simple Comsol model to analyze convective currents and velocity fields in glass optical fiber at specific temperatures, particularly near its glass transition state. They have the necessary fiber dimensions but lack experience with Comsol. Suggestions include exploring the Comsol website, which offers numerous helpful examples and tutorials. Other users confirm that these resources are beneficial for beginners. The discussion emphasizes the importance of leveraging available Comsol materials for effective modeling.
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I need to develop a simple model in Comsol, but I have no experience with it. I need to see what the convective currents and velocity fields are at certain temperatures in a glass optical fiber. I have the information about the fiber and its dimensions. The fiber is going to be at around its glass transition state so it be like taffy. It's just cylindrical fiber surrounded by air. Can anyone send some pointers, or a pdf example that is similar, etc? Any help is appreciated.
 
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you can go to comsol website. there have many example that i think you can used. i am also start to learning some example from there & it is very good example and easy to follow.
 

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