is used to enable and disable the solution of the fiber equations for Momentum (Equation 22–4), Energy (Equation 22–11), and Species (Equation 22–1). When switching off the solution of one of these equations, it is not computed for any fibers defined in your model.

provides a drop-down list where you can assign to each of the fiber equations one of three different discretization schemes explained in Discretization of the Fiber Equations.

contains all under-relaxation factors for all fiber equations that are being solved in the continuous fiber model. See Under-Relaxation for additional background information and see Solution Strategies for how to make use of under-relaxation factors in your solution strategy.

is used to stop the fiber iterations when the residuals of all fiber equations are below the prescribed criteria. You can define a separate convergence criterion for every fiber equation.

must be turned on if you want to compare the residuals of the fiber equations with the Convergence Criterion. If you turn this option off, the given number of fiber iterations will be computed.

are used to compute the change of the residual of two subsequent iterations relative to the residual of the last iteration by applying Equation 22–20. The result of this is compared to the Convergence Criterion to check whether convergence has been achieved.

defines the number of Fiber Iterations performed every time the fiber equations are updated.

sets the number of fiber iterations that will pass before the residuals will be printed.

You can reduce the output to the last fiber iteration by specifying Reporting Interval as 0. This is recommended when performing a solution that is coupled with the surrounding flow.

sets the number of Fluent iterations before the fiber equations are updated in a solution that is coupled with the surrounding flow.

factor is used to under-relax the fiber source term exchange to the surrounding fluid. In a converged solution this value does not influence your predictions.