Figure 5: Particle retention after removal of mesh from cross-step model compared with standard crossflow model.
From: Fish mouths as engineering structures for vortical cross-step filtration
(a,b) Removal of mesh from the right posterior slot (7.0% of total mesh area) in the 90° cross-step model had minimal effect on particle retention in the other slots (side view). (c,d) Removal of 2.8% of the posterior mesh from the right side of a standard crossflow model lacking ribs and slots caused a significant reduction in particle retention (side view). (e) Particle retention with mesh intact versus removed (mean±s.d., n=5 models for each design). Means with different letters indicate P<0.0001 (two-way ANOVA with Tukey’s post-hoc test). Photos a–d by P. Yañez. MF, direction of mainstream flow inside model. Scale bars, 0.5 cm.
