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This translates to an approximate increase in runtime of 8 four times the number of cells and half the timestep. In this first module, a fully two-dimensional 2D model is built. This offers the following benefits: Surface roughness or bed resistance values eg. In Module 3 we will overcome this issue by modelling the creek using a 1D model, which will be dynamically linked with the 2D model. The second approach is to manually assign the elevation at each of the points using a GIS package.

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Do the logs and results appear different? This materials files will be referred to in the. This is shown in a text editor below.

TUFLOW Documentation

We will introduce the check files as we progress with the tutorial modules. We have setup the required GIS and text based inputs and ran the simulation. The check files are useful for reviewing the inputs have been correctly specified. This section contains links to some common issues that may occur when progressing through the first module of the TUFLOW tulow model.

The first method is covered in this tutorial. The simulation will take a few minutes to process depending on the speed of you computer. Please progress to the next step. We now need to assign elevations at each 2D cell centre, mid-side and corner.

Is the increase in simulation time justified? Privacy policy About Tuflow Disclaimers.

Earlier on we add the following command to the TCF: Commands in the TGC file are read sequentially from the top of the file to the mamual.

This can be opened in excel, or your GIS package. The model performs better with a smaller cell size, as the 5m resolution is a bit too coarse for representing the narrow in-bank flowpath in a 2D manner. This is nanual last step before running the simulation. MB2 contour lines at time 3hrs, over aerial photo in SMS.

Tutorial Module01 - Tuflow

Please read the Tutorial Model Introduction before starting this tutorial. In Module 3 we will overcome this issue by modelling the creek using a 1D model, which will be dynamically linked with the 2D model. A description of each of these messages is given in the message database section of this wiki: However, if using MapInfo and Vertical Mapper the. For earlier versions of TUFLOW this method was the only option, it has largely been superseded, but is still supported. In this first module, a fully two-dimensional 2D model is built.

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In Module 3 we will model the creek area as an embedded 1D open channel, this should minimise the mass area mahual in this tutorial. We have initialised the code status for the entire model as inactivethen updated the status to active manuwl the areas contained within the GIS polygon.

In most cases, the location or order within the file is not important, with the last occurrence of that command prevailing.

Retrieved from " https: Choosing an appropriate cell size that allows representation of the hydraulics whilst resulting in realistic run times is an important part of the modelling process. This page was last modified on 8 Mayat Consider the following two blocks of "code" commands below: The following post on the TUFLOW forum gives some guidance on estimating model runtimes based on tufkow model area and cell size.

We will look at where these occur in the next section.

These include, but are not limited to:. It can be opened in Excel or any text-editing program.