Аннотация:The 2-D problem on evolution of continuously stratified flow on wedge was investigated. The mathematical model and numerical method of implementation, allowing simultaneous studying all the elements of the internal multi-scale stratified flows was proposed. The constructed original solver of the open-source package OpenFOAM enabled to carry out parallel calculations on stratified flow structure and dynamics around an impermeable horizontal wedge. The evolution of the structure of the stratified flow was studied in a wide range of free stream velocities.