Multiple 2D Domains (M2D) Module allows any number of 2D domains of different cell size and orientation to be built into a model. The 2D domains can be linked by 1D domains, or via the 2D/2D linking feature. Each domain can be of different cell size, orientation and extent.
For example, a 1D domain of a river system may have several 2D domains embedded to represent several townships where a more detailed 2D analysis is required. Another scenario is to use a coarser 2D grid linking to a finer resolution 2D domain over the area of interest. 1D elements can link between the different 2D domains, for example, an underlying pipe network can be linked to any number of different 2D domains.
To have access to multiple 2D domains requires having access to the M2D Module.
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Tuflow GPU is a 2D fixed grid hydrodynamic numerical model that uses the computational performance of GPUs to deliver a 10 to 100 times speed increase.
Successfully benchmarked and a top performer of the 2012 UK EA 2D Bench-marking, the GPU solver seamlessly slots into TUFLOW “Classic”. It has the power and flexibility of TUFLOW’s superior GIS functionality and scripting and scenario/event management is at your fingertips when using the GPU Module. The explicit finite volume 1st order space, 1st or 4th order time solution is 100% stable. It solves the full 2D free-surface equations including inertia and sub-grid turbulence (eddy viscosity).
For further information see GPU 2D Solver.
TUFLOW AD (Advection Dispersion) is a module for simulating depth-averaged, two and one-dimensional constituent fate and transport. Both dissolved and particulate constituents can be simulated.
TUFLOW AD takes depth and velocity fields computed by the TUFLOW and ESTRY engines and uses this information, together with initial and boundary conditions, to simulate the advection and dispersion of constituents. TUFLOW AD is specifically oriented towards such analyses in systems including coastal waters, estuaries, rivers, floodplains and urban areas.
The TUFLOW AD 2D advection solution algorithm is based on the third order ULTIMATE QUICKEST method of Leonard (1991), Leonard & Niknafs (1991) and Leonard et al. (1993). It solves the full two-dimensional, depth averaged, constituent conservation equation, including sink terms such as settling (for particulate species) and decay. The continuity equation is used to ensure conservation of mass.
The scheme also includes representation of mixing due to sub-grid-scale turbulence and vertical shear via the dispersion formulation provided in Falconer et al. (2005). The TUFLOW AD scheme implements automatic sub-stepping to maintain stability, and has the capability to adaptively expand its computational stencil from third to ninth order if strong constituent gradients are identified.
TUFLOW AD Flyer