Manipulation of small-scale matter is a fundamental topic in micro and nanorobotics. Numerous magnetic robotic systems have been developed for the manipulation microparticles an ambient environment, liquid, as well on air-liquid interface. These move intrinsically or magnetically tagged objects by inducing torque force. However, most materials found nature are nonmagnetic. Here, we report ferro...

We investigate how ferrofluid droplets suspended in a wall-bounded shear flow can organise when subjected to an external magnetic field. By tuning the magnitude of field, we find that form chain-like structures direction field is weak, while forming crystal-like pattern strong provide phase diagram and critical conditions for this chain-to-crystal transition, by applying both numerical simulati...

in the present study, the nonlinear model of non-newtonian blood flow in cosine-shape stenosed elastic artery is numerically examined. the model is carried out for axisymmetric, two-dimensional and fully developed blood flow. the vessel wall is assumed to be have time-dependent radius that is important factor for study of blood flow. the cosine-shape stenosis convert to rigid artery by using a ...