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Hi, what does EC mean?
No limits for Race 02 (except, as usual, for 10mm rule), the application of the 1R rule will start from Race 03.
Well if that doesn’t highlight how well JJR is utilising in wash at the rear, nothing willLVDH wrote: ↑20 May 2025, 11:55Thanks for this.
Today, I have some CFD images for you:
https://mantiumchallenge.com/wp-content ... images.gif
https://mantiumchallenge.com/cfd-images ... mvrc-2025/
Yepp, his rear wing and diffuser seem to be really happy about this.
I hope mine can be too. I was cursed with a massive separation bubble at the rear of the sidepod which ultimately limited the inwash I was creating. I’m hopeful that I can find some gains by fixing that among some other things for Monaco, I’m sure it won’t take long for others to catch up now.
2.5 Only the parts specified in rule 2.1 and the text file in rule 2.4 should be included. No other guide or provided mandatory parts must be submitted. The combined size of the stl files (before compression) must be below 160MB for ASCII stl, or below 40MB for binary stl.
2.1 An entry should be a single compressed archive file (ZIP etc) named using the format “<team>_<round>_<version>”. It must contain a directory structure “input_files/geometry/“ which contains:
A directory named “special_bc”:
(rule 7) One engine inlet surface, with a filename starting with “engineIn”
A directory named “monitoring_surfaces”:
(rule 6) Each heat exchanger monitoring surface as a separate stl-file (front face of heat exchanger translated rearward along its normal by 30mm)
A directory named “porous_media”:
(rule 6) Each (left and right hand sides) heat exchanger volume as a separate stl file
A directory named “high_res_surfaces” (rule 9.2).
Directories “frt_suspension” and “rr_suspension” (rule 14).
A directory named “vehicle_body”: All remaining bodywork.
I double checked everything and do not know what to change, which according to the rules will lead to a penalty, which will be pity, taking in to account all the effort I've put in to this competition.2.4 A plain text file must be included in the archive to specify the offset for the following parts compared to their position as supplied in the parts file, even if they have not been moved, stating the following:
Vehicle rake in deg
Vehicle ride height adjustment in mm
Yepp, thanks for asking. And as a small preface: The rules are not to annoy people or take away results from their hard work. Most rules are to keep sure you all have similar cars and do not somehow create a Le Mans style car, but F1 cars. This rule is mainly to ensure smooth racing operations in the background. To an extent it is also to avoid a potential way to directly cheat.
I've had that problem for a long time but no one has replied yet, so thanks for bringing that up again. I hope it can fixed before the sims for Monaco cause it does have a big effect.G-raph wrote: ↑23 May 2025, 23:30Hi everyone!
Very interesting results from the first race, and congratulations to JJR!
I have run my first CFD simulation today, and as I have a disappointingly long list of issues to fix, I would like to request the 2 days extension for the first time, please.
I think there is a problem with the Mandatory Suspension parts movements in MFlow. My suspensions sit in the right place when I import them in MFlow (so nothing to do with Matteo's issue), but as soon as Rake and/or RH adjustement is applied, the Mandatory suspension rods move weirdly and quite differently to the parts that I have designed (which appear to move sensibly). Can you please double-check that, and ideally remove these parts for the official simulations?
I wonder if this issue gave unexpected results to multiple competitors in the first race. Thank you in advance.
I agree with removing the template representing the structural core of the suspension arms for the Monaco Race (Race 2), since it's causing issues. While we're at it, can we also remove it from the geometry used for the Race 01 calculations?G-raph wrote: ↑23 May 2025, 23:30Hi everyone!
Very interesting results from the first race, and congratulations to JJR!
I have run my first CFD simulation today, and as I have a disappointingly long list of issues to fix, I would like to request the 2 days extension for the first time, please.
I think there is a problem with the Mandatory Suspension parts movements in MFlow. My suspensions sit in the right place when I import them in MFlow (so nothing to do with Matteo's issue), but as soon as Rake and/or RH adjustement is applied, the Mandatory suspension rods move weirdly and quite differently to the parts that I have designed (which appear to move sensibly). Can you please double-check that, and ideally remove these parts for the official simulations?
I wonder if this issue gave unexpected results to multiple competitors in the first race. Thank you in advance.
Please check this out:KaraszG wrote: ↑23 May 2025, 21:03...
We completed the CAD design and are trying to run the first case with MantiumFlow. I've got the following errors during the STL import:
Warning: Something went wrong with the CoR calculation, CoR set to 0,0,0
Warning: Front wheels seem to be positioned incorrectly. In MVRC they should be in global (0,0,0.3).
Warning: Rear wheels seem to be positioned incorrectly. In MVRC they should be in global (3.4,0,0.3).
Warning: Car seems to extend maximum allowed dimensions.
Calculated ride height at: 0.04000
I also tried to use the V6 rule geometry for front and rear suspension/wheel/etc., but still the same warnings.
Moreover, I had terminated runs during the tutorial of the shark and car_coarse cases:
ERROR: Failed to post close command error 1726
ERROR: unable to tear down the job tree. exiting...
I'm hoping you can answer these questions. We are stuck with them currently, and our excitement grows getting closer to the submission deadline.
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