Gregory J. Sheard

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The shear rate dependence of platelet aggregation geometries is investigated using a combination of in vitro and numerical experiments. Changes in upstream shear rate, γ(Pw), are found to cause systematic changes in mature platelet aggregation geometries. However, γ(Pw) is not the only factor determining the shear rate experienced by a platelet moving over,(More)
Control systems for lab on chip devices require careful characterisation and design for optimal performance. Traditionally, this involves either extremely computationally expensive simulations or lengthy iteration of laboratory experiments, prototype design, and manufacture. In this paper, an efficient control simulation technique, valid for typical(More)
The flow of blood past an axisymmetric thrombus analogue, within an in vitro geometry, is computed via solution of the discrete three-dimensional (3D) Navier–Stokes equations. Particle tracking is used to model the behaviour of thrombocytes (platelets) moving throughout the domain and to investigate behaviour with respect to the platelets. The system is(More)
For shallow flow past an obstacle in a channel, the channel depth and blockage ratio play a significant role in the dynamics of the wake. In this study, the flow past a confined circular cylinder is investigated numerically using a spectral element algorithm. The incompressible Navier-Stokes equations are solved over a two dimensional domain, and a linear(More)
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