Further investigate the flow mechanism of the liquid-liquid hydrocyclone, and the oil and water phases flow field in hydrocyclone for oil water separation is simulated using LRR stress model.

The phase separation processes under external stress field of polymer blends with modulus inhomogeneity were also investigated.

With the method of asymptotic and variable separation, the stress singularity near the conic-shaped crack tip at a bi-material interface is fulfilled.