The Ergun equation is a mathematical model that describes the pressure drop across a packed bed of particles when a fluid flows through it. This equation combines the effects of viscous flow and inertial forces, making it crucial for understanding fluid dynamics in solid-fluid systems. By providing a relationship between pressure drop, fluid velocity, particle characteristics, and viscosity, the Ergun equation is essential for designing and analyzing various engineering processes involving packed beds, such as in chemical reactors and filtration systems.
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