New techniques for mixing viscous reacting liquids. Part I. Mechanical means to improved laminar mixing

A discussion of the basic mechanisms and governing laws for liquid mixing is used to motivate new design concepts for more efficient mixing equipment. In this part of the paper, the use of V‐grooves in the inner cylinder of a concentric cylinder mixer is examined. The purpose of the grooves is to induce vortex‐like motions in the fluids in order to overcome the negative effects of interface orientation on mixing performance. Results show that the grooves are efficacious in increasing the effectiveness of the mixer. Descriptions of the experimental and analytical work done to characterize the design and to prove its efficacy are presented in detail. Scale‐up parameters are also discussed.