Fluid flow, accompanied by the transport of mass and energy, can be used to describe many applications in chemical engineering. These transport mechanisms typically interact and can also be influenced by chemical reactions. Integrating multiple physical phenomena requires coupling the mathematical descriptions of the processes for accurate simulations, that is, multiphysics modeling.

Transport and reaction simulations cover a broad spectrum of technical fields and applications. Examples include the production of bulk commodities, such as plastics and paper; advanced material science applications in the semiconductor industry; the development of efficient and clean engines for transportation; the engineering of biochemical and environmental processes; and the manufacture of pharmaceuticals
and the processing of food.

Porous Reactor with Injection Needle

This example shows the mixing of reactants and the catalytic reaction rate in a packed bed reactor where one of the reactants is injected through a needle in a perpendicular direction to the main axis of the reactor.