Segregated Energy Solver for Multiphase
The Segregated Energy solver controls the solution update for the Segregated Fluid Energy model. It is used to set the under-relaxation factor and algebraic multigrid parameters for the energy equation.
Segregated Energy Solver Properties
- Fluid Under-Relaxation Factor
- At each iteration, this property governs the extent to which the newly computed solution supplants the old solution. The default value is 0.9.
- Solid Under-Relaxation Factor
- At each iteration, this property governs the extent to which the newly computed solution supplants the old solution. The default value is 0.99.
- Enable High-Accuracy Temporal Discretization
- Activates the High-Accuracy Temporal Discretization options for the solver.
For more information, see Setting High-Accuracy Temporal Discretization.
- Reconstruction Frozen
- When On, Simcenter STAR-CCM+ does not update reconstruction gradients with each iteration, but rather uses gradients from the last iteration in which they were updated. Activate Temporary Storage Retained in conjunction with this property. This property is Off by default.
- Reconstruction Zeroed
- When On, the solver sets reconstruction gradients to zero at the next iteration. This action means that face values used for upwinding (Eqn. (905)) and for computing cell gradients (Eqn. (917) and Eqn. (918)) become first-order estimates. This property is Off by default. If you turn this property Off after having it On, the solver recomputes the gradients on the next iteration.
- Solver Frozen
- When On, the solver does not update any quantity during an iteration. It is Off by default. This is a debugging option that can result in non-recoverable errors and wrong solutions due to missing storage. See Finite Volume Solvers Reference for details.
- Temporary Storage Retained
- When On, Simcenter STAR-CCM+ retains additional field data that the solver generates during an iteration. The particular data retained depends on the solver, and becomes available as field functions during subsequent iterations. Off by default.