کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10431368 910212 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fully three-dimensional model of the interaction of driven elastic filaments in a Stokes flow with applications to sperm motility
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
A fully three-dimensional model of the interaction of driven elastic filaments in a Stokes flow with applications to sperm motility
چکیده انگلیسی
In many animals, sperm flagella exhibit primarily planar waveforms. An isolated sperm with a planar flagellar beat in a three-dimensional unbounded fluid domain would remain in a plane. However, because sperm must navigate through complex, three-dimensional confined spaces along with other sperm, forces that bend or move the flagellum out of its current beat plane develop. Here we present an extension of previous models of an elastic sperm flagellar filament whose shape change is driven by the pursuit of a preferred curvature wave. In particular, we extend the energy of the generalized elastica to include a term that penalizes out-of-plane motion. We are now able to study the interaction of free-swimmers in a 3D Stokes flow that do not start out beating in the same plane. We demonstrate the three-dimensional nature of swimming behavior as neighboring sperm swim close to each other and affect each others' trajectories via fluid-structure coupling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biomechanics - Volume 48, Issue 9, 25 June 2015, Pages 1639-1651
نویسندگان
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