TUFLOW 1D Flood Modeller Connectivity: Difference between revisions

TUFLOW models can be configured with Flood Modeller to allow dynamically linked models comprising 1D pipe networks, represented in ESTRY (aka TUFLOW 1D), open channels represented in Flood Modeller Pro and/or TUFLOW 1DESTRY and the 2D representation of surface flow represented in TUFLOW 2D. This allows full integrated catchment modelling.

An ESTRY X1DH (the default) would be used for most Flood Modeller ESTRY links where TUFLOW is discharging into Flood Modeller. The discharge will be applied to the Flood Modeller 1D model as a lateral inflow. The Flood Modeller 1D node on the receiving end of an X1DH connection must be a channel unit (eg, River, Interpolate, Replicate or Conduit) and must not be the end node of a reach (iei.e., distance to next cross section of zero). This is commonly used when representing a pipe network within ESTRY which discharges to an open channel represented in Flood Modeller as per Figure 1.

[[File:X1DQ Example.PNG|thumb|Border|none|700px|Figure 2: Flood Modeller Open Channel Discharging into aan TUFLOWESTRY 1D Open Channel, the green node, DSBDY, is the location of the 'X1DQ' node.]]

==Building aan TUFLOWESTRY-Flood Modeller 1D-1D Connection==

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 ISISX1D Nodes or Read GIS ISISX1D 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:Estry Link.png|thumb|Border|none|400px|Figure 3-The ESTRY 1d_nwk node layer (in blue) snapped to a Flood Modeller node (in a 1d_x1d_isis1d_x1d Flood Modeller layer in orange).]]<br>

[[File:Estry Properties.png|thumb|Border|none700pxnone|700px|Figure 4-1d_nwk_nodes attributes for the ESTRY node snapped to the Flood Modeller node.]]<br>

A connector "X" channel type can be used to connect the end of the linked ESTRY channel to the ESTRY node snapped to the Flood Modeller node if the end of the ESTRY channel and the snapped Flood Modeller /ESTRY nodes are not in the same location. In this case it is important that the X-connector is drawn from the ESTRY channel (iei.e., the first vertex on the polyline) to the ESTRY node which is snapped to the Flood Modeller node (see Figure 5). The Flood Modeller node label in the 1d_x1d_isis1d_x1d Flood Modeller layer should match that within the Flood Modeller network.

It is not possible to have a HX connection to ESTRY and a X1DQ connection at the same node. This is because the X1DQ connection node is snapped to the Flood Modeller node and the model thinkthinks it's trying to connect a HX and X1DQ to the same Flood Modeller node. In this situation it would be necessary to insert a small dummy channel between the X1DQ node and the node connected to the HX boundary.

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

[[File:X1dh results.png|thumb|border|none|700px|Figure 1011: X1DH Flow Results showing Flow from the ESTRY Pipe Network into the Flood Modeller Open Channel]]