Simulation of flagellar motions near a rigid surface

Simulations of the hydrodynamic interaction of rotating flagella with a neighboring solid surface are presented using the method of Regularized Stokeslets. We include in the method the use of regularized rotlets and a system of images that exactly cancels the fluid velocity at the wall. The results show features such as an attraction towards the surface and rotations that generate a drag force that allows the flagellum to ``roll'' along the surface. Other compute flows resemble observed features of the flow when organisms are near the bottom of the plate in an experimental setting.