2023.next
- Added anisotropy to FRPM
- Added rotating terms to Jacobian
- Bug fix in fluent convert
- Added non-orthogonal correction to wall distance calculation
- Improved startup time of large jobs on GPUs
- Added force driver to alter boundary conditions to achieve a target lift
- Linear solver performance improvements
2021.11.765
- Added SU2 to zCFD mesh converter
- Added time averaging to FV solver
2021.07.123
- Deal with conformal and non-conformal interfaces in Fluent meshes
- Improve stability of SST and SA-neg
- Added Langtry-Menter SST transition model
- Additional dynamically updatable params
- Increased granularity of output control
2021.04.122
- Implemented FSI with rotating zones
- Added specification of mass flow rate for FV solver inlet and outlet BCs
- RBF/FSI bug fixes
- Added RBF/FSI restarts
- Added distributed RBF solve
- Added check for duplicate zones in boundary conditions
2019.06.86
- Added multiscale RBF transformations
2019.01.68
- Added capability to restart SA solver from SST and SST from SA
- Improved validation of different solver/time stepping combinations in parameters dictionary
- Removed requirement for write permissions on restart file
- Improved handling and validation of dynamically updated parameters
2018.09.62
- Fixed viscous forces calculation in high order solver which were a factor of 2.0 too large
- Upgraded versions of CUDA, Intel MPI and MKL used. CUDA 9.2 is now required for GPU runs
- Added validate_input script to allow checking of control dictionary before run time
- Enforce input parameters that are either True or False to be booleans when validating the dictionary. i.e. 'true' is no longer valid
- Changed colour of timer breakdown output to improve readability
2018.07.60
- Optimised GPU execution with 2x performance improvement on V100
- Fixed bug in activate script. zdeactivate didn't restore PYTHONPATH correctly
2018.05.58
- Upgraded to Paraview 5.4
- Bug fix to node ordering for DG tetrahedra
- MUSCL reconstruction no longer demotes interface faces between FV and high order cells
- Improved low Mach number preconditioning for turbulent flow for SST and SA models
- DG Performance improvements
- Fixed wavespeed calculation for rusanov scheme for FV solver
- Fixes for P4 hexahedra
- Default parameter values output when solver is run without controldict present are now no longer merged with the supplied control dictionary
- Fix for launching using LSF job scheduler
- Added option to set cell orders in cylindrical regions for DG solver
- Correction to dynamic viscosity output and added output of turbulence kinetic energy
- Added sponge layer option for farfield boundary conditions
- Improved warning message for cell zone definition
- Set velocity to cell velocity on the farfield boundary for ALE cases
- Fix rotating cell zones partition face flux ale velocity
2017.2.3
- Corrected DG WALE solver and exposed DG WALE solver to the user
- Correction to BR2 scheme
- Bug fix to velocity gradient vtk output for DG solver
2017.2.2
- Print correct release version number, 2017.2.1 release inadvertently reported 2017.2.0
- Improved memory allocation reservations outputting to VTK format
- Always sync gradients from GPU when outputting
- Fixed logic to detect lu-sgs
- Fix to allow P4 hexas
- Efficiency improvements to the BR2 diffusive flux scheme
- Wall functions corrected for HO solver
2017.2.1
- Added ability for use to select SST DES variants
- When requested Python dictionary is not available, write default
- Fix issue on Skylake based CPUs
- Improve performance of P0 cases
- Correction to force output extracted in surfaces
2017.2.0
- Added ability to override convolution function from controldict
- Python libraries now link against bundled openssl
- Performance improvements
- Added some validation of parameters before running the solver
- Corrected parsing of filtering epsilon and filtering strength values so they are treated as double instead of truncated to int
- Fix to roughness values when running in parallel
- Added BR2 scheme to High Order code
- Ensured halo conditions are correct for strong Boundary Condition formulations
- Added improved interpolation for temperature field input
- Ensured restricted mut is the average of the child cells
- Fixes to restart logic
- Timing output has been improved to report in days. hours, minutes and seconds
- Enabled CUDA optimisations for Pascal architecture GPUS
- Added support for P3 Tris
- Bug fix to prism elements when running in parallel
- Allow user to scale cfl number for viscous timestep
- Added update frequency parameter for turbine zone definitions
- Added a native implementation of the convolution function
- Added specific keywords for specifying the turbine fluid zone length factor and the reference point offset
- Added automatic check to make sure that the reference point is located inside the turbine region
- Added fix for case where only one turbine location is specified as this broke the numpy logic
- Added warning when users specify a thrust coefficient greater than 1 as this invalidates the induction factor calculation later
- Added turbine power curve to turbine fluid zones
- Added keyword to specify the model (induction or simple) to be used for modelling turbines
- Added function 'create_turbine_segments_simple' which uniformly applies thrust and torque to the actuator disc segments, based on the thrust coefficient, tip speed ratio and power curves supplied by the user
- Added thrust summation for simple turbine
- Added use of a search tree to speed up cell searching in turbine regions
- Turbine region function now use line and tube filters rather than cylinder
- Added dissipation to boundary fluxes
- Turned on extrapolation for Farfield Boundary conditions
- Added support for Cray XC systems. Contact us to get a specific version for this platform
- Added relocate option for when the executable on the compute nodes are in a different location to the submit node
- Fixes to WALE model for High Order solver
- Added SA Neg Model for Finite Volume solver
- Added SA Model for High Order solver
- Improved output of high order eddy viscosity
- Robustness fixes for reference plane cell identification
- Added option to output fluidic zone cell sets
- Removed warnings when TRBX file specifies thrust coefficient greater than 1
- Added warning when thrust coefficient > 1 is specified for the 'induction' model. CT is then scaled back to 0.8
- Added turbine power output for Betz limit turbine
- Allow user to set shock sensor variable
- multigrid_cycles variable can be use to turn off Polynomial Multigrid for the High Order solver
- Allow specifying the real time step frequency at which the restart H5 file gets written
- Added user option to scale residuals by volume
- Ensured dynamic viscosity and kinematic viscosity output total mu+mu_t
- Allow using Rusanov for turbulence when HLLC is chosen for High Order solver
- Added ABL fluidic zone type
- Added ability to specify the PMG cycle pattern from the python dictionary using the 'multipoly cycle pattern' key
- Ensure that the last solve cycle does a PMG cycle in the High Order Solver
- Added STL file option for turbine offset specification
- Improved parallel load balancing
- Added SAS to LES options
- Changed default ambient turbulence to off so that SA and SST results match
- Improve startup performance for High Order Solver
- Added option to turn on rotation correction for SA
- Fix to memory allocation for SAS
- Added Bousinessq buoyancy
- Write turbine power to file on update
- Added libgfortran to tarball for systems where it's not already installed
2017.1.1
- Moved cfl logic for coarse grids into the driver layer
- Allow overriding of RungeKutta scheme from users control dictionary
- Fixed bug with incorrect gradient values being calculated at boundaries
- Slip walls now extrapolate at the boundary
- Updated a number of third party dependencies
2017.1.0
- run_zcfd script now passes through the tasks per node parameter to the smartlaunch script which is needed when not running through a scheduler
- Made Intel MPI aware of the filesystem it is running on to improve performance on parallel file systems and address issues seen running on GPFS
- Fixed bug with periodic boundary condition
- Removed some code duplication in the python layer
- Fixed bug in create_trbx_zcfd_input that caused turbine regions not to be rotated.
- Bug fix to physical nodal locations in high order code
- Added curvature approximation for high order
- Added porus media support
- Fixed bug detecting actuator disc reference cell when running in parallel
- Ensure the generated turbine region contains the reference point
- Added thrust and tip speed interpolation functions
- Added screen output for actuator disc initialisation
- Performance improvements of file reading during restart
- Added eddy output for boundary faces for high order
- Bug fix to quad nodal location ordering
- Fixed bug in high order filtering
- Added MUSCL reconstruction option for P0
- Changed binding behaviour to bind to sockets if oversubscribing the number of processes on a node
- Added checks for existence of the unix tool numactl
- Added checks for the presence of the mesh and control files
- Bug fix to viscous force calcuation for high order
- Stability improvements to polynomial multigrid
- Upgraded to Python 2.7.13
- Removed requirement for a C++11 compiler for the foamtozCFD converter
- Added missing face area scaling for viscous friction calculation
- Only convect at lower polynomial orders for PMG
- Include pressure and friction forces in reports for High Order
- Fixes to support multiple moving reference frames
- Allow selection of Rusanov scheme for high order
- Added support for multiple cell zones in a single fluid zone entry
- Added translating mesh option
- Fix to ALE HLLC fluxes
- Added moment reporting
- Updated reporting notebook with plotting functionality
- Enable time history vtk output for global timestepping
- Various fixes to global timestepping scheme
- Added vorticity vector output for HO
- Fix support for mixed element CGNS files
- Fix dimensional Q criterion output
- Added helicity output for HO
- Added ability to choose between finite difference and analytic jacobian for LU-SGS FV
- Ensure reported residual is factored by CFL
- Fixes to FV LU-SGS residual reporting
- Added option to use rusanov scheme for FV LU-SGS jacobian
- Added pressure limiter to implicit time marching
- Added generic finite difference boundary jacobian calculator
- Added analytic jacobians for Wall, Wall Function, Farfield, Inflow, Outflow, Canopy and Symmetry boundary conditions
- Added ability to freeze viscous fluxes for FV LU-SGS sweeps
- Added support to restart from LnOmega turbulence model
- Bug fixes to preconditioning
- Added support for P4 Hexes for HO
- Added scaling of turbulent CFL for FV LU-SGS
- Added shock sensor for HO
- Enabled FV LU-SGS with multigrid
- Added output of artificial viscosity for HO
- Added logic to supply a start and end real time cycle for outputting solution in vtk format
- Add momentum source jacobians for FV LU-SGS
- Added capability to identify cells at a plane in actuator disc region
- Added actuator disc plane average reference velocity calculation
- Use diffusive flux on the boundary faces rather than applying penalty parameter
- Only rename the hdf5 file on the master process
- Added new functions for conserved gradient calc
- Fix for implicit solver with farfield subzones
- Added in prolongation relaxation factor for PMG
- Allow user to scale artificial viscosity
- Changed behaviour or restart reporting. Will create a backup of the restarted report file and start a new report file with all of the variable being reported at the top
- Put all *vtu and *vtp in a VISUALISATION sub-directory to help tidy up our file output. *.pvd files remain where they are and point to the files in VISUALISATION
- Put log files in a LOGGING sub-directory
- Added OpenSSL libraries to release distribution
2016.3.0