Complex Fluids Engineering Laboratory

Complex Fluids Engineering Laboratory (CFEL, Prof. Hyun Wook Jung) focuses on rheology and rheological processes based on theoretical modeling, simulation, and experiments. CFEL’s research fields are shown below. CFEL contributed to the product quality control and productivity enhancement in polymer extensional deformation processes such as film casting and film blowing, exhibiting Hopf bifurcation features. CFEL also established the key strategy for uniform coating flow control and operability windows in pre-metered coating processes which have been importantly applied in IT industries manufacturing display films, Li-ion secondary batteries, and fuel cells. CFEL elucidated the relationship between curing kinetics and mechanical properties of dual-curable organic coatings for automotive applications. Employing various light scattering techniques such as dynamic light scattering (DLS), diffusing wave spectroscopy (DWS), and multi-speckle DWS, CFEL have investigated the micro-rheological aspects in particulate suspension systems. Through Brownian dynamics simulations and related microfluidic experiments, CFEL clarified the migration and conformation of polyelectrolyte/biological polymer chains in various flow fields. CFEL recently performed macro/microscopic simulations for diesel particulate filters and developed coating technologies of catalytic slurries.