5 papers
Seeing new depths: Three-dimensional flow of a free-swimming alga
Gregorius Pradipta, Wanho Lee, Van Tran +8
A swimming microorganism stirs the surrounding fluid, creating a flow field that governs not only its locomotion and nutrient uptake, but also its interactions with other microorga…
Inertia-Dilatancy Interplay Governs Shear-Thickening Drop Impact
Anahita Mobaseri, Leonardo Gordillo, Charles Burton +5
Combining high-speed photography with direct force measurements, we investigate the impact dynamics of drops of cornstarch-water mixtures -- a premier example of shear-thickening f…
Dynamics of rotating helices in viscous fluid
Chijing Zang, Luke Omodt, Moumita Dasgupta +1
We investigate the dynamics of a pair of rigid rotating helices in a viscous fluid, as a model for bacterial flagellar bundle and a prototype of microfluidic pumps. Combining exper…
Maximum spreading of impacting shear-thinning and shear-thickening drops
Anahita Mobaseri, Satish Kumar, Xiang Cheng
The maximum spreading of an impacting liquid drop is a key metric for characterizing the fundamental fluid process of drop impact. While extensively studied for Newtonian liquids,…
Microscopic contact line dynamics dictate the emergent behaviors of particle rafts
Ranit Mukherjee, Zih-Yin Chen, Xiang Cheng +1
Fluid-fluid interfaces laden with discrete particles behave curiously like continuous elastic sheets, leading to their applications in emulsion and foam stabilization. Although exi…