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Hi I've some questions about the input files and the post rpocessing results. For my simulations now, my input files are the whole (mirrored) car. I was wondering if it is possible to decrease the simulation time by only using half of the car? Secondly I now create multiple .stl files for my vehicle body, resulting in cd/cl values for all parts seperately. Is it quicker/beter to merge all parts to 1? After the simulation I noticed the cd/cl values are not always the same for the same parts left and right, I think this is quite strange, since those parts are exactly the same and the difference is in some cases significant. Also there is a couple of parts which all have exactly the same values, while I think this is very unlikely. I used the long template for this simulation. At last I noticed some strange behaviour in the residual and flux plots, probably this clarifies more about this values. During the first 1400 - 2000 iterations it is quite a smoot line and it is asymptotically reaching a certain value. However at a sertain moment they start fluctuating a lot and show some strange behaviour in my eyes. At last I have a problem which is mentioned in a earlier question as well, postprocessing does not show CoP and Cl(f) and Cd(f).
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Hi, the sip file is to large to send to your dropbox link. It is about 1GB. Is there data you don’t need or a link to a folder with more space? |
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Sure just send the case. |
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Hi thanks for the quick answers! I figured out the strange values, this was my own wrong interpetation (I opened it on a bit to small screen probably…). All ”mirrored/left” parts have the same values and due to that indeed they are different from the right hand side parts…. Anyway still a bit strange probably. For the other things I can send you my case if it is useful. |
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Ok, this is more than one question, at least for the most part these are easy to answer: I was wondering if it is possible to decrease the simulation time by only using half of the car? Secondly I now create multiple .stl files for my vehicle body, resulting in cd/cl values for all parts seperately. Is it quicker/beter to merge all parts to 1? After the simulation I noticed the cd/cl values are not always the same for the same parts left and right, I think this is quite strange, since those parts are exactly the same and the difference is in some cases significant. Also there is a couple of parts which all have exactly the same values, while I think this is very unlikely. I used the long template for this simulation. During the first 1400 – 2000 iterations it is quite a smoot line and it is asymptotically reaching a certain value. However at a sertain moment they start fluctuating a lot and show some strange behaviour in my eyes. At last I have a problem which is mentioned in a earlier question as well, postprocessing does not show CoP and Cl(f) and Cd(f). You are welcome to send your case, so I can check it myself. |