[CFD] Inflation Layers - Part 2 (Corners, Orthogonality, Smoothing)

An overview of the inflation layer generation process used by meshing software for CFD (Part 2).

Timestamps:
0:00 Introduction
1:22 Before We Start
3:14 Node and Face Normals
4:54 Warping
9:07 90 Degree Corner
11:05 Negative Volume
12:50 Normal Vector Smoothing
14:31 Projection Distance
17:02 Crevices
21:04 Distance Smoothing
23:52 Orthogonality Problems
26:43 Mixed Approach
30:50 Example Mesh
33:22 Summary
34:30 Outro

#cfd #meshing #fluidmechanics101
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Disclaimer
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The methods, algorithms, equations, formulae, diagrams and explanations in this talk are for educational and demonstrative purposes only. They should never be used to analyse, design, accredit or validate real scientific / engineering / mathematical structures and flow systems. For such applications, appropriate trained, qualified and accredited (SQEP) engineers / scientists should be consulted along with the appropriate documentation, procedures and engineering standards. Furthermore, the information contained within this talk has not been verified, peer reviewed or checked in any way and is likely to contain several errors. It is therefore not appropriate to use this talk itself (or any of the algorithms, equations, formulae, diagrams and explanations contained within this talk) as an academic or technical reference. The reader should consult the original references and follow the verification and validation processes adopted by your company / institution when carrying out engineering calculations and analyses. Fluid Mechanics 101 and Dr. Aidan Wimshurst are not accountable or liable in any form for the use or misuse of the information contained in this talk beyond the specific educational and demonstrative purposes for which it was intended.

[NanoActuator]

The contents in this valuable channel are becoming more precious as they have not been found anywhere else in such either a comprehensive or easy-to-understand level even if they are advanced like this content. I have come across inflation layers in many studies which have been poorly created without considering the quality of the mesh which can lead to deviated results that have been ignored by many. Thanks.

[mareksawicki]

As always gr8 portion of knowledge, thanks !

[kamilastryczniewicz]

Many thanks for all your valuable videos 😊

[fsilvamaffei]

Nice Darth Varder voice emulator >.< hahahaha

[oskarelmgren]

Mesh generator lives a hard life! Especially in cases where the surface is "rough" in relation to the cell size!

[mohamedemara]

Wonderful, Aiden!
Easily one of the best sources of CFD online. Also, it was a great lecture and a very interesting topic. Can you suggest some references for people interested in mesh generation algorithms?

[MarioTomePT]

Thanks for nice videos in your channel.
Let me ask if this aproach of corner cells can be also interesting between BC other than walls. For instance between a "velocity inlet face" and a "wall" BC. Or Symetry and "pressure inlet", etc. Thanks for your time!
All the best!

[cls]

nothing but thank you Sir Aidan. it will be not enough even if I praise for you till the morning (it is 7 p.m now here). my cfd concerns getting huge every moment ı listen to you so thank you again. ı want to ask you a question. i am an university student. should i watch you heat transfer and energy watchlist firstly or the finite volume method watchlist to take a high efficiency from your videos nextly.

[icojb]

Hey Aiden, how about a video on Richardson Extrapolation for mesh convergence studies? Maybe using the ASME guidelines for best practice or something ...

[hirashijas]

Please make some videos regarding modelling of membranes in CFD

[Triskellion]

something's a bit off with the audio - some sort of buzzing/echo?