4.3 General arrangement
A water quality simulation is set up and executed under the umbrella of a TUFLOW FV control file (Figure 4.1, with other optional modules shown for illustrative purposes). That is:
- The TUFLOW FV control file (*.fvc) file remains the central file that initiates and coordinates an overall simulation. This mirrors the way in which other TUFLOW FV modules, such as the ST Module and PT Module, are activated and executed
- The TUFLOW FV control file contains a path to a separate WQ Module control file (*.fvwq) that in turn contains all the commands required to configure a WQ Module simulation

Figure 4.1: Simulation Coordination
TUFLOW FV and WQ Module control file commands are presented following.