Stokesian dynamics

Stokesian Dynamics is like playing with tiny balls in a pool of jelly. You throw the balls and they move through the jelly, but the jelly sticks to the balls and slows them down. This is what happens when small particles, called colloids, move through a fluid, like water. But instead of pools of jelly, scientists use computers to simulate the movement of these small particles through the fluid.

The movement of the colloids is important because it can affect things like how drugs are delivered to cells or how pollutants move through water. To understand this movement, scientists use equations, called the Stokes equations, which describe how fluids move and the forces acting on the particles. But solving these equations exactly would take too much time, so scientists use approximations and simulations to study the movement of the colloids.

The simulations work like a computer game, where the particles are modeled as tiny balls and the fluid is modeled as a sea of jelly. The computer calculates how the jelly sticks to the balls and how they move through it. The movement of the colloids depends on many factors, like how big they are, how fast they're moving, and how many of them there are. By changing these factors, scientists can study how the movement of the colloids changes and how it affects things like drug delivery or pollution.

Overall, Stokesian Dynamics is like a computer game that helps scientists understand how small particles move through fluids. It's important because it can give us insight into how drugs and pollutants move through our bodies and the environment.