Onset of unsteady horizontal convection in rectangle tank at $Pr=1$

Opportunities for use of exact statistical equations

Optical Trapping by Radiometric Flow

Optically induced electrokinetic patterning and manipulation of particles

Optimal chaotic mixing by two-dimensional Stokes flows

Optimal homogenization of perfusion flows in microfluidic bio-reactors; a numerical study

Optimal Prandtl number for heat transfer in rotating Rayleigh-Benard convection

Optimal stirring strategies for passive scalar mixing

Optimal streaks in a Falkner-Skan boundary layer

Optimal Taylor-Couette turbulence

Optimizing the Source Distribution in Fluid Mixing

Optimizing the vertebrate vestibular semicircular canal: could we balance any better?

Orbitally-Induced, Quasi-Periodic Climate Change on Mars: Modelling Changes in the Global Cycling of Water and Carbon Dioxide

Orbits of fluid elements accreting onto a black hole

Order and chaos in two-dimensional Rayleigh-Bénard convection

Order-to-disorder transition in ring-shaped colloidal stains

Ordering of small particles in one-dimensional coherent structures by time-periodic flows

Orientation changes of the large-scale circulation in turbulent Rayleigh-Benard convection

Orientation dynamics of weakly Brownian particles in periodic viscous flows

Orientational instabilities in nematics with weak anchoring under combined action of steady flow and external fields