27 citations · 81 across the 9 of their papers we have counts for
9 papers
A microstructural rheological model for transient creep in polycrystalline ice
Alex J. Vargas, Ranjiangshang Ran, Justin C. Burton
The slow creep of glacial ice plays a key role in sea-level rise, yet its transient deformation remains poorly understood. Glen's flow law, where strain rate is simply a function o…
Sedimentation dynamics of passive particles in dilute bacterial suspensions: emergence of bioconvection
Bryan O. Torres Maldonado, Shravan Pradeep, Ranjiangshang Ran +2
Microorganisms are ubiquitous in nature and technology. They inhabit diverse environments ranging from small river tributaries and lakes to oceans, as well as wastewater treatment…
Enhancing Transport Barriers with Swimming Microorganisms in Chaotic Flows
Ranjiangshang Ran, Paulo E. Arratia
We investigate the effects of bacterial activity on the mixing and transport properties of a passive scalar in time-periodic flows in experiments and in a simple model. We focus on…
Mixing in chaotic flows with swimming bacteria
Ranjiangshang Ran, Quentin Brosseau, Brendan C. Blackwell +3
This is a manuscript accepted for publication on Physical Review Fluids, Gallery of Fluid Motion special issue. The manuscript is associated with a poster winner of the 39th Annual…
Understanding the rheology of kaolinite clay suspensions using Bayesian inference
Ranjiangshang Ran, Shravan Pradeep, Sébastien Kosgodagan Acharige +4
Mud is a suspension of fine-grained particles (sand, silt, and clay) in water. The interaction of clay minerals in mud gives rise to complex rheological behaviors, such as yield st…
Flow and aerosol dispersion from wind musical instruments
Quentin Brosseau, Ranjiangshang Ran, Ian Graham +2
In the midst of the COVID-19 pandemic, many live musical activities had to be postponed and even canceled to protect musicians and audience. Orchestral ensembles face a particular…
Polymers in Swarming Bacterial Turbulence
Ranjiangshang Ran, David A. Gagnon, Alexander Morozov +1
We experimentally investigate the effects of polymer additives on the collective dynamics of swarming Serratia marcescens in quasi two-dimensional (2D) liquid films. We find that e…
Phase-separation during sedimentation of dilute bacterial suspensions
Bryan O. Torres Maldonado, Ranjiangshang Ran, K. Lawrence Galloway +3
Numerous natural systems depend on the sedimentation of passive particles in presence of swimming microorganisms. Here, we investigate the dynamics of the sedimentation of spherica…
Bacteria hinder large-scale transport and enhance small-scale mixing in time-periodic flows
Ranjiangshang Ran, Quentin Brosseau, Brendan C. Blackwell +3
Understanding mixing and transport of passive scalars in active fluids is important to many natural (e.g. algal blooms) and industrial (e.g. biofuel, vaccine production) processes.…