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Pavlina Monhartova

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About Pavlina Monhartova

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  1. Please try the latest QGIS 3.24 and TUFLOW plugin 3.3. Since QGIS 3.8.1 a lot of development has been done and some of the latest improvements of TUFLOW plugin are not possible to come across to an older QGIS version. If that doesn't help, please send the 1d_nwk pits and pipes layer to support@tuflow.com. Pavlina
  2. Hi Peter, What version of QGIS and TUFLOW plugin are you using? Pavlina
  3. Hi Alex, The ESTRY engine requires the HQ relationship to be specified in a csv file. You might want to consider transitioning from 1D to 2D via HX line and using the automatic 2D HQ boundary as the downstream boundary. You would need to either shorten the 1D channel or extend the 2D code further downstream. There should be some number of 2D cells between the 1D HX and 2D HQ for the flow to transition smoothly. You might want to start with let's say 10 and see if that works well. Better solution would be elimination the 1D channel completely by using TUFLOW HPC with SGS and Quadtree. For more information, please see our recent webinar: https://www.tuflow.com/library/webinars/#quadtree Pavlina
  4. Hi, running TUFLOW Classic and and HPC on Linux is still on the cards, however was postponed due to other tasks taking priority. We are aiming for late next year at the moment, but this could change. Pavlina
  5. Hi Tom, asc_to_asc utility can be used on any grids regardless of which software produced them as long as the grids dimensions are matching (have identical headers when you open them in a text editor) and number of elements are matching respectively. You might need to do some further GIS post-processing to achieve that........ or use TUFLOW from the start Pavlina
  6. Hi Ben, We haven't heard from any of our users about using github for TUFLOW control files. If you do try it, please let us know about your experience. Kind regards, Pavlina
  7. Hi Helen, Can you please send .tlf to support@tuflow.com so we have a bit more information about your model? Thank you. Kind regards, Pavlina
  8. Hi Jason, The increase in startup time might be insignificant for some models and to some extent noticeable for others depending on how the model is built. Keep in mind that this would only affect the initialisation run time for the first time when XF files are used (the default). We will consider if skipping the grids that doesn't fall within the refinement domain can be implemented for future releases. Thank you for the suggestion. Cheers, Pavlina
  9. Hi Bonnie, Surcharging manholes are not currently supported in TUFLOW, however they are on our development list to consider for future releases. Q pit with 1d_na user defined storage might be a reasonable workaround in the meantime. Is there a storage node in your current model? Cheers, Pavlina
  10. Hi Matthew, Well spotted. It seems the only option for grids is to output to -asc. I have added this on our development list. In the meantime, you can use asc_to_asc utility to convert created asc grids to the binary format. Cheers, Pavlina
  11. Thank you Peter for the suggestion, great advice. If you or Paul still have the model with CN points that doesn't work well with HPC, please send it to support@tuflow.com and we can investigate if it should work. Cheers, Pavlina
  12. Hi Josh, Could you please send a .tlf to support@tuflow.com so we have a bit more information? Thank you. Kind Regards, Pavlina
  13. Hi Josh, Recently we had model (not rain on grid) with similar behaviour and double precision was the fix. Due to not enough significant numbers in single precision there was a trickle flow remaining throughout the pipes. The rest of Peter's suggestions are also worth checking, e.g. 1D timestep and justification for the trickle flow, especially with your model being rain on grid. If you can't get to the bottom of this, please send the model to support@tuflow.com for investigation. Thank you. Kind Regards, Pavlina
  14. Hello everyone, Not having access to the Jabber I would provide some feedback here. Thanks Peter for your input. To add, virtual pipes could also be used to transfer water, same as pumps, it really depends what exactly are you trying to model and what data you have available. For Ezra, a way how to model a rainfall falling on buildings without the 1D error or 2D waterfall like effect would be to use 2d_sa_rf layer and Read GIS SA RF command. You will digitise a small polygon for each building on the ground where you expect the rainfall from the building to fall and assign appropriate attributes – Table 7-6 in the latest TUFLOW Manual. https://www.tuflow.com/Downloads.aspx Kind Regards, Pavlina
  15. Hi Abhishek, Thank you for the suggestion. It has been added to the TUFLOW development list to consider for future releases. Kind regards, Pavlina
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