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About duncankitts

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    Leeds, UK

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  1. Hi SirAdelaide, Section 3.2.9 of the release notes available here provides the following:- "Treatment of Infiltration and Negative Rainfall with SGS Enabled With SGS enabled, cells that are partially wet the treatment of infiltration and direct rainfall is as follows. See Section 3.2.4 above for details on the SGS Infiltration Approach and SGS Negative Rainfall Approach options. For positive rainfall, i.e. rainfall on to the 2D cell, the volume source for each cell is the total cell area times the rainfall irrespective of whether the cell is partially wet or not. For negative rainfall (evaporation), the volume of evaporation is factored by the wet area fraction of the cell. That is, if the cell is only 10% wet, only one tenth of the cell’s total area contributes to the negative source term. For models with soil infiltration the infiltration rate is proportional to the wet area fraction of the cell. However, initial infiltration losses are based on the total area of the cell (i.e. infiltration will proceed at the maximum possible rate until the cumulative infiltration – also based on total cell area - equals the initial loss value) even if the infiltration occurs with the cell partially wet. This approach is adopted to conform with that required for direct rainfall, which assumes the rainfall is applied over the entire cell irrespective of whether the cell is partially wet or not. Likewise, soil capacity is based on the total cell area (i.e. infiltration will cease once the cumulative infiltration equals soil capacity), and the cumulative wet time for the Horton model will also increment for cells that are partially wet."
  2. Hi, The FEH rainfall-runoff model does consider infiltration losses both in the development of runoff (direct/total runoff and baseflow), as in the case of the upstream 2d_bc boundary, and the development of net rainfall, as in the case of the 2d_rf boundary. Therefore, if you're using runoff or net rainfall from FEH/ReFH and assuming your FEH/ReFH model is calibrated appropriately, you shouldn't have to also apply additional infiltration. To do risks double-counting the losses. Duncan
  3. Online Training We have recently published our new online training program so everyone can continue their professional development and TUFLOW learning from home. All fees associated with the 2020 online training schedule can be credited 100% toward any perpetual licence purchases or upgrades made before 1st January, 2021. Details are on the training page of the website: http://www.tuflow.com/Training.aspx?gblrmt. Training Courses can be filtered by location and include TUFLOW 2020 New Release training, integrated urban drainage modelling with TUFLOW training and Flood Modeller-TUFLOW linking training.
  4. With the ongoing COVID-19 situation, in conjunction with our partners at Edenvale Young who are organising the conference on our behalf, we have taken the difficult decision to postpone the TUFLOW UK/Europe User Conference which was originally scheduled for June 30th/July 1st. We’re currently looking at other dates later in the year and will post further details as they come available.
  5. Hi, I appreciate it's quite a late reply, but after a few of these types of queries, we've put together the following guidance on Flood Modeller-ESTRY linking:- https://wiki.tuflow.com/index.php?title=TUFLOW_1D_Flood_Modeller_Connectivity Cheers, Duncan
  6. We've put together some scheduled training courses for 2020. There'll be introductory courses in Leeds and London in March and October. We'll also be holding some new release hands on training in February to go over the details of modelling with the exciting new functionality which will be available in the 2019 release of TUFLOW. Spaces will be limited. http://www.tuflow.com/Training.aspx?ubt Email training@tuflow.com if you have any questions or would like to register.
  7. The TUFLOW team, together with our long-term collaborators, Edenvale Young, have been planning the 2020 UK TUFLOW Conference. The dates have now been finalised and we are pleased to announce that the 2020 UK TUFLOW Conference will be returning to Bristol and the world-renowned Bristol Zoo, on Tuesday 30 June and Wednesday 1 July. If you have an exciting TUFLOW application that you would be interested in presenting then please contact us at info@tuflow.com to register your interest. We’ll be releasing more details later in the year.
  8. An update to the TUFLOW version being used provided the solution. You should be using at least the 2018-03-AC version when using Flood Modeller in conjunction with TUFLOW HPC.
  9. Introduction to TUFLOW training courses in London (18th-19th September) and Leeds (24th-25th September) See below link for more details:- https://www.tuflow.com/Training.aspx?ubt Also coming soon, an exciting announcement on the 2020 UK TUFLOW User Conference.
  10. We are very close to a full house for the TUFLOW 2019 New Release Workshop in Leeds on the 6th June. We have an exciting agenda with Bill Syme and Mitchell Smith providing an update on the latest and greatest developments in TUFLOW Classic/HPC and TUFLOW FV. We're also delighted to have some external presenters providing case studies of the application of the software too. If you're still interested we do have a couple of spaces left. Email training@tuflow.com if you're interested.
  11. There's just under a month to go to the TUFLOW UK New Release Workshop in Leeds. We've been putting together a varied agenda which can be viewed in the attachment below covering some exciting upcoming functionality including TUFLOW Quadtree and Sub-Grid Sampling and even some UK specific tools. Places are being filled fast so don't miss out, email training@tuflow.com to secure your place. TUFLOW_UK_Workshops_agenda.pdf
  12. We will be running Introductory TUFLOW Training in both Leeds and London. More details found in the link below:- https://www.tuflow.com/Training.aspx?ubt Autumn dates to be confirmed shortly. For more information contact training@tuflow.com
  13. We are delighted to announce the 2019 UK and Europe New Release Workshop. Aimed at all TUFLOW users from modellers to managers, the day will cover new features in the 2019 release and introduce attendees to the upcoming TUFLOW HPC Quadtree solver, discuss the latest functionality within the latest TUFLOW FV release as well as showcase the new QGIS plugin. The workshop will be held in Leeds, UK on Thursday June 6th. Register early at training@tuflow.com to avoid disappointment. More details in the below link:- https://www.tuflow.com/Download/Training/TUFLOW_UK_Workshops.pdf
  14. Mathieu, See the link below which describes a similar scenario albeit from an Inflow perspective. http://www.tuflow.com/forum/index.php?showtopic=163 I would imagine that a similar concept, in reverse, would work just as well at a downstream end. Duncan
  15. It should just be a case of unzipping the downloaded file and then copying and pasting the new TUFLOW executable and associated .dll files into the directory where you kept previous versions of Tuflow. We like to keep a copy of the previous version of Tuflow in case of any compatibility issues but we have yet to come across any of these. Once the Tuflow executable has been replaced any built models should be able to run with no modifications. Duncan
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