Welcome to TOSCA’s documentation

TOSCA is an incompressible finite-volume large-eddy simulation code formulated in curvilinear coordinates with Boussinesq approximation to account for buoyancy. It features a moving immersed boundary method and several actuator models to include bodies and wind turbines within the simulation domain. Moreover, a two-way coupled overset mesh method has been introduced in the latest release, allowing to nest one or more refined regions within the main background domain.

TOSCA has been successfully used to simulate atmospheric boundary layer and wind farm flows, including terrain and wind farm induced atmospheric gravity waves, cluster wakes, as well as wind farm control problems. TOSCA is currently developed at the Computational Fluid Dynamics Laboratory of the University of British Columbia, Okanagan Campus.

We kindly ask you to please fill up our user survey , which allows us to keep track of new TOSCA users around the world.

This link brings you back to the official repository of TOSCA. The code is open-source and licensed under the BSD 2-Clause Simplified License.

Reporting Bugs, Issues & Contributing

For bugs, issues, questions and new features please open an issue on the GitHub repository here. To contribute to the TOSCA code, please see Contribute to the TOSCA Project.

Publications

The following is a list of publication where TOSCA has been used. For referencing the TOSCA code please use the first publication on the list.

• TOSCA – an open-source, finite-volume, large-eddy simulation (LES) environment for wind farm flows

• The actuator farm model for large eddy simulation (LES) of wind-farm-induced atmospheric gravity waves and farm–farm interaction

• The multi-scale coupled model: a new framework capturing wind farm–atmosphere interaction and global blockage effects

• A large-eddy simulation (LES) model for wind-farm-induced atmospheric gravity wave effects inside conventionally neutral boundary layers

• A shear stress parametrization for arbitrary wind farms in conventionally neutral boundary layers

• Recommendations on setup in simulating atmospheric gravity waves under conventionally neutral boundary layer conditions

• Active Cluster Wake Mixing

Contributing Authors

This user guide is being developed by Sebastiano Stipa. The TOSCA code is under active development by the following authors:

• Sebastiano Stipa (von Karman Institute for Fluid Dynamics)

• Arjun Ajay (University of British Columbia)

• Joshua Brinkerhoff (University of British Columbia)