👉 Rough fluid, also known as colloidally dispersed fluid, is a type of colloidal suspension where the particles are larger than those in a true solution but smaller than those in a gel. These particles, typically ranging from 1 to 1000 micrometers in diameter, are not fully dissolved but remain suspended in the fluid medium due to Brownian motion and electrostatic repulsion. Unlike true solutions, where particles are completely dissolved, or gels, where particles form a network trapping the fluid, rough fluids exhibit properties of both, often displaying viscosity and surface tension. This unique behavior makes them useful in various applications, from paints and inks to drilling fluids and biomedical engineering.
