The basic principle of mixing is to convert the rotational energy of the mixer shaft into the correct combination of flow, shear and turbulence to achieve the required process result.
In the industrial process, the mixing operation is a Unit Operation that involves manipulating a heterogeneous physical system with intent to make it more homogeneous. In order to arrive at an optimum mixer design a detailed understanding of the various mechanisms involved and their importance in acheving the required process result is required.