# An error ocurred **URL:** \ **Category:** Project Support\ **Created:** [October 28, 2017, 7:48am UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944 "2017-10-28T07:48:27Z")\ **Posts on this page:** 17\ **Page:** 2
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 12:57pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/26 "2017-10-29T12:57:31Z")
Cheers thank you ---
**Author:** ![1318980](https://www.simscale.com/forum/user_avatar/www.simscale.com/1318980/32/9637_2.png) [@1318980](https://www.simscale.com/forum/u/1318980)\ **Post date:** [October 29, 2017, 3:23pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/27 "2017-10-29T15:23:29Z")
Think this is different as there is actually a log report: [6] --\> FOAM FATAL ERROR: [6] faceSource faceSource300: patch(RadiatorZone\_boundingFaces): Unknown patch name: RadiatorZone\_boundingFaces. Valid patch names are: 20 ( boundingBox1 boundingBox2 boundingBox3 boundingBox4 boundingBox5 boundingBox6 solid\_0\_CATIA\_STL solid\_0\_CATIA\_STL\_1 solid\_0\_CATIA\_STL\_2 solid\_0\_CATIA\_STL\_3 solid\_0\_CATIA\_STL\_5 solid\_0\_CATIA\_STL\_6 procBoundary6to4 procBoundary6to5 procBoundary6to7 procBoundary6to17 procBoundary6to18 procBoundary6to19 procBoundary6to24 procBoundary6to26 ) so seems to not recognize the patch ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 3:25pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/28 "2017-10-29T15:25:18Z")
Sorry but did not very understand what is this mean ---
**Author:** ![1318980](https://www.simscale.com/forum/user_avatar/www.simscale.com/1318980/32/9637_2.png) [@1318980](https://www.simscale.com/forum/u/1318980)\ **Post date:** [October 29, 2017, 3:31pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/29 "2017-10-29T15:31:19Z")
Hi @czhang, sorry that wasn’t clear was it 🙂 I meant this more as a statement of what has gone wrong, for some reason the volume you selected wasn’t recognised as a selectable patch. Are you using another setup as an example? Kind regards, Darren ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 3:32pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/30 "2017-10-29T15:32:58Z")
OKay thank you and I will try to set another oneand re-simulation it ---
**Author:** ![1318980](https://www.simscale.com/forum/user_avatar/www.simscale.com/1318980/32/9637_2.png) [@1318980](https://www.simscale.com/forum/u/1318980)\ **Post date:** [October 29, 2017, 3:35pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/31 "2017-10-29T15:35:00Z")
The only reason why I asked about the setup is that in the docs it only mentions assigning primitives to a porous material, not a cell zone, was just wondering if there was an example you were following that used a cell zone as the region instead? Cheers, Darren ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 3:37pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/32 "2017-10-29T15:37:22Z")
I followed this but without angle wind, > [@Step-by-Step Tutorial Session 3 - Yaw Angle Study (Part 1)](https://www.simscale.com/forum/t/step-by-step-tutorial-session-3-yaw-angle-study-part-1/79719): > > Recording [[CFD in Formula Student and Formula SAE - Session 3: Aerodynamics Development Strategies] ](https://www.youtube.com/watch?v=cy31_MVQlxw)Homework Submission For your homework, your task is to investigate the full car running in a straight line at 20 m/s with side wind. You will have the same model we used for the last session, so you will setup porous media, MRF (rotating) zones, rotating walls, and the flap angle will be 0 degrees. Think about how this setup differs from the previous one and think about the impact of… Just tried to simulation a nomal completely car and see the stream trace happen to radiator. Cheers ---
**Author:** ![1318980](https://www.simscale.com/forum/user_avatar/www.simscale.com/1318980/32/9637_2.png) [@1318980](https://www.simscale.com/forum/u/1318980)\ **Post date:** [October 29, 2017, 3:51pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/33 "2017-10-29T15:51:40Z")
I thought it a bit strange that instead of a volume your radiator is two plates: ![17](https://www.simscale.com/forum/uploads/default/original/3X/4/c/4c0d2950e46d7c4d2e9697eb2732ab2e064d7be4.png) so you may need to check your mesh, I think you need to select faces that make a region unlike this: ![19](https://www.simscale.com/forum/uploads/default/original/3X/8/f/8f4977335755ae7c962e6d370ec0a3159a9d3465.jpg) I presume this is your geometry? or is it from the workshop? Kind regards, Darren ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 3:59pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/34 "2017-10-29T15:59:37Z")
Yes I build this as the radiator to use the porous media selection ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 4:03pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/35 "2017-10-29T16:03:26Z")
> **[Assignment 2 by czhang | SimScale](https://www.simscale.com/projects/czhang/fsae_2017-workshop-s2-full_car_aerodynamics_1/)** > > Half-car simulation | Simulation project by czhang Just like in this, the radiator zone is also consist of two plate. ---
**Author:** ![1318980](https://www.simscale.com/forum/user_avatar/www.simscale.com/1318980/32/9637_2.png) [@1318980](https://www.simscale.com/forum/u/1318980)\ **Post date:** [October 29, 2017, 4:25pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/36 "2017-10-29T16:25:00Z")
In that example you shared it is actually enclosed and not two plates selected: ![37](https://www.simscale.com/forum/uploads/default/original/3X/b/d/bdea7a42949bcacd71af53ff47f32c0df2766f06.jpg) you might need to revisit your geometry to fix this. Kind regards, Darren ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 4:35pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/37 "2017-10-29T16:35:34Z")
![com-2017-10-29-16-32-57-093](https://www.simscale.com/forum/uploads/default/original/3X/f/9/f90d2c1948dd5a6eb2166aa8212c5daf82feef19.jpg) Thank you but as you see, on my laptop it shows as plates. I am a bit confused, whats more this mesh refinement is surface refinement, so I think it is only surface? ---
**Author:** ![jousefm](https://www.simscale.com/forum/user_avatar/www.simscale.com/jousefm/32/34908_2.png) [@jousefm](https://www.simscale.com/forum/u/jousefm)\ **Post date:** [October 29, 2017, 4:36pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/38 "2017-10-29T16:36:42Z")
Hi @czhang. Currently having a look at the project. I might have found the mistake. Let me give it a shot! Best, Jousef ---
**Author:** ![jousefm](https://www.simscale.com/forum/user_avatar/www.simscale.com/jousefm/32/34908_2.png) [@jousefm](https://www.simscale.com/forum/u/jousefm)\ **Post date:** [October 29, 2017, 5:08pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/39 "2017-10-29T17:08:38Z")
Hi @czhang ! Can you send me your geometry as IGES, STEP and STL to my email address please? You can also upload them to Google Drive and share the link with me via pm. I think that there are some issues with the geometry. I want to figure out what is going on. Best, Jousef ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 5:49pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/40 "2017-10-29T17:49:37Z")
Hi what is your email address please? ---
**Author:** ![jousefm](https://www.simscale.com/forum/user_avatar/www.simscale.com/jousefm/32/34908_2.png) [@jousefm](https://www.simscale.com/forum/u/jousefm)\ **Post date:** [October 29, 2017, 5:51pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/41 "2017-10-29T17:51:10Z")
Check your inbox @czhang. 🙂 ---
**Author:** ![czhang](https://www.simscale.com/forum/user_avatar/www.simscale.com/czhang/32/16181_2.png) [@czhang](https://www.simscale.com/forum/u/czhang)\ **Post date:** [October 29, 2017, 6:30pm UTC](https://www.simscale.com/forum/t/an-error-ocurred/80944/42 "2017-10-29T18:30:21Z")
Sent you [Previous page](https://www.simscale.com/forum/t/an-error-ocurred/80944.md?page=1)