Figure 2
From: Towards uniformly oriented diatom frustule monolayers: Experimental and theoretical analyses
Theoretical analysis of diatom frustule interaction with water as it rises towards the surface following submersion. (a) An analytical model of a single diatom frustule. (b) A cross-section of the frustule model: hc denotes the distance between the mass center and convex surface of a frustule. (c) Forces exerted on a rising ‘concave-up’ oriented diatom frustule: F denotes the buoyance force, G the gravitational force, Fx and Fy the drag forces resulting from the corresponding relative water flow. (d) Forces exerted on a rising ‘concave-down’ diatom frustule.
