TUFLOW 1D Flood Modeller Connectivity: Difference between revisions

'''NOTE: Remember that the Flood Modeller node ID is Case Sensitive.'''

 

Flood Modeller and TUFLOW will be considered linked if an ESTRY node in a 1D_nwk layer, and a Flood Modeller node in a Read GIS ISIS Nodes or Read GIS ISIS Network layer are snapped together (see Figure 3). Ensure that the 2 nodes are snapped, or that a snap tolerance is being used. The ESTRY node should have a 1d_nwk Conn_1D_2D attribute of either "X1DH" or "X1DQ". If Conn_1D_2D field is blank then “X1DH” is assumed (see Figure 4). Note that the upstream and downstream inverts for the ESTRY node linked to Flood Modeller should be set to -99999 unless the node is also being used to set the inverts of channels snapped to it.

 

[[File:Messages.png|thumb|border|none|700px|Figure 8: _messages layer showing successful activation of X1DQ connection.]]

 

 

Generally, an ESTRY timestep will be smaller than the Flood Modeller timestep. In these cases, the total volume is accumulated over all ESTRY timesteps within a Flood Modeller timestep, and applied to the Flood Modeller model as a discharge by dividing the volume by the Flood Modeller timestep.

[[File:X1dq results.png|thumb|border|none|700px|Figure 11: X1DQ Results showing flow from the Flood modeller Open Channel into the TUFLOW 1D(ESTRY) Open Channel]]

 

 

Flood Modeller and ESTRY (TUFLOW 1D) models can be dynamically coupled to enable a bi-directional connection between the two software using either a X1DH link or a X1DQ link. The links take place when an ESTRY node and Flood Modeller node are snapped together. Where an ESTRY channel is also attached flow is transferred at this interface. When an ESTRY channel is not connecting, an X-connector is required to connect the snapped ESTRY/Flood Modeller node to the ESTRY channel. The dynamic coupling allows full integrated catchment modelling with open channels being represented in Flood Modeller, Pipe networks being modelled in TUFLOW 1D and the urban surface and floodplain being modelled in TUFLOW 2D. From Flood Modeller 4.5, there is also the capability to run linked Flood Modeller-ESTRY models with TUFLOW HPC. This allows models to be run on multiple processors and on GPU cards for significant speed gains for the integrated catchment model. Further details can be found in the following [[Flood_Modeller-TUFLOW_Benchmarking|page]].