COMP_nbSmooth_Eta

Default: COMP_nbSmooth_Eta = 2 This parameter specifies the number of smoothing cycles for %ind_ETA_sm% and %ind_ETA_eff% and %ind_r_sm%. If \( \hat{\eta}_i^{k}\) is the smoothed version, i.e. the total viscosity or the density after the k-th smoothing cycle at MESHFREE point with index i, then the new value at cycle (k+1) is given by \begin{align} \hat{\eta}_i^{k+1} = \frac{ \sum\limits_{j=1}^N W_{ij} \cdot \hat{\eta}_j^{k} }{ \sum\limits_{j=1}^N W_{ij} }\end{align} i.e. a Shepard-based smoothing is employed. Note: The weight kernel \( W_{ij}\) is defined by COMP_facSmooth_Eta. The same weighted kernel is used also for smoothing density.