Viscous Fluid Flowing around the Plate: Turbulence

Numerical simulation of flow hydrodynamic around dolphin body in viscous fluid

The biomimetic and hydrodynamic study of aquatic animals is one of the most challenging computational fluid dynamics topics in recent studies due to the complexity of body geometry and the type of flow field. The movement of the aquatic body, and particularly the tail section and the corresponding movement of fluid around the body, causes an unsteady flow and requires a comprehensive study of t...

Microcantilever mechanics in flowing viscous fluids

Melting and Flowing of Viscous Volumes

We present a simple, linear 3D cellular automata approach for animating the melting process of solid volumetric models. Accurate modelling of object melting usually requires complicated physical simulations of heat transfer and phase transition from solid to liquid. Instead, we propose a simplified model to describe the melting behaviors of highly viscous objects, such as wax, lava, plastic, me...

Intermittent turbulence in flowing bacterial suspensions.

Dense suspensions of motile bacteria, possibly including the human gut microbiome, exhibit collective dynamics akin to those observed in classic, high Reynolds number turbulence with important implications for chemical and biological transport, yet this analogy has remained primarily qualitative. Here, we present experiments in which a dense suspension of Bacillus subtilis bacteria was flowed t...

Eddy Formation and Turbulence in Flowing Liquids

• The steady flow of liquids through straight rigid tubes has been extensively analyzed, but these data cannot be applied directly to the pulsatile flow of blood through distensible, tapered and branching vascular channels. Since it is very difficult to follow flow patterns in the living animal, certain types of studies must be performed in models. Laminar flow, eddy formation and turbulence ca...