Hi I’ve just started using SimScale and I want you guys help me completing this project. The aim of this project is to illustrate the flow around a glider. However, I’ve been having an issue with either meshing or CFL. On Run-5, I tried to run it by decreasing the mesh fineness but it didn’t wor…

Hi @SalmonMan and thanks for reaching out to us! My colleagues @DaleKramer & @jhorv_th were working on a glider project and give you some good tips if your setup is good or not. CFL and the mesh are connected but it can be that only your mesh has some erroneous elements in it causing either the me…

Hi @SalmonMan , thank you for reaching out! You realized that you can use symmetry constrain, and it’s good! :slight_smile: At the first sight you have issues because of the too coarse mesh. The error message also suggests that we have the problems somewhere there: [image] In order to capture …

Hi! Thanks so much for having a look into my project! Alright, so I’ll try working on the meshing more. Now I think I know what I’m doing:sweat_smile: If I still have a problem with it then I may reach you out again but I’ll try myself first:+1: Thanks again for the helpful reply! Kind regards …

hi @SalmonMan [image] jhorv_th: I checked your model and there are 12 knife-vertices that make problem in your simulation. so, remove that first. :grinning: [image] if you are Solidworks user than before you go for any simulation you can check your geometry in Solidworks. click on eval…

So here I’ve tried re-meshing. I had a look into this public project: Plane by BYHW | SimScale However, it still looks like the area around the surface is quite rough. [mesh-1] What I want/need is something like this if I’m not wrong. [mesh-2] I reckon there’s something to do with ‘inflate b…

Hi Rohit Thanks for having a look! Alright, the model is actually made my friend but I’ll do that on my Solidworks. Thank you for the tip! Taichi

Hi @SalmonMan , I’ve made a quick and dirty simulation on your geometry: SimScale . For simplicity I chose automatic mesh generation which is far from the ideal (too fine far from the object, too coarse close to the object). It works, can be used to represent speed and pressure distribution or fan…

Hi Janos That’s awesome! Thanks for the info. I’ll learn from those projects and try:+1: Kind regards Taichi

Hey Taichi, There are a bunch of y+ calculators online, like this one from cfd-online or this google spreadsheet . These are reliable but I do recommend that you make your own spreadsheet for y+ evaluation. So basically these calculators take a desired y+ as input and return the thickness of the f…

Hi Ric Thanks so much for that! That’s really intuitive and and clear for me to understand.

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Glider CFD Project

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SalmonMan October 23, 2019, 2:18pm 13

YES!!
I guess it was pretty successful.
Thanks so much for your help guys.
I’ll still try on the original glider project as well.

Taichi