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CFD Dose
1k members • $9/m
4 contributions to CFD Dose
May '24 •
Conceptual doubt regarding Irrotational flow vs inviscid flow
Hello people. I am having a doubt regarding Irrotational flow and inviscid flow. As far as I can understand , a flow with 0 vorticity is Irrotational flow. But I am not very clear what is inviscid flow. Also does changing viscosity drive the flow towards less inviscid/ more inviscid. I would like your valuable insights on this doubt.
1 like • May '24
Could you be a little more specific about your doubt? If its just about inviscid flow, then it means that the flow is assumed to have 0 viscosity. Meaning that there are no shear stresses or friction within the layers of the fluid. However, this cannot be considered near solid/wall regions as boundary layer forms, as it depends on viscosity. To answer your question about changing viscosity, it is self explanatory. If you increase viscosity, of course it will be a dominant factor in case of low Reynolds number.
0 likes • May '24
@Saurav Kumar I have to learn more regarding this.
Apr '24 •
How to network?
As mentioned in the virtual coffee, we need to have a mutually beneficial relationship to improve our networks. As a student, what do I have to offer a person I'm trying to network with who has 20+ experience in the industry?
Apr '24 •
Doubt regarding Poly-hexcore meshing
So every time I use the poly-hexcore meshing in ANSYS Fluent for external aerodynamics cases, I observe that the polyhedral mesh is also applied to the walls of the enclosure. The whole reason for using this mesh is to utilize hex mesh in the bulk region and polyhedral for capturing complex geometries, then why does the wall of the enclosure get captured by polyhedral mesh instead of being meshed directly by hex as it is just a plain rectangular face?
0 likes • Apr '24
@Mohamed Sayed Oh! I didn’t realise sharp corners of the enclosure might be considered as complex. New learning! I used ANSYS Fluent Meshing for this case. I was having some trouble generating BOI for this case, that’s why I just gave a very small mesh size. I fixed the issue now, BOI are working. I was asked this question by my professor once and I wanted to know the answer. This image was just a representation. Thanks!!
Apr '24 •
Introduce yourself to the group 👇
Hi everybody! Happy to have you all here and very excited to kick-start a long journey of mentorship and growth with all of you. To help get to know each other and break the shyness, take a moment to introduce yourself below and let others know what you're currently working on (CFD or in general). ** Please make sure you have carefully read this post and participated in this poll [takes 5 seconds] Let's go!
0 likes • Apr '24
@Firliandini Sundari Thanks for the intro to aeroacoustics!
1 like • Apr '24
Hello @Mohd Ovais! This is the first time I’m listening about simulating fire in CFD. Would love to learn more about it in the upcoming virtual coffee, if you can make it. Cheers
1-4 of 4
@narendar-sv-1993
Have some good idea about performing CFD simulations for external aerodynamics. Looking to work on related projects and trying out other fields of CFD
Active 789d ago
Joined Apr 19, 2024
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