Contemporary turbulence modelling research has been developed beyond the claasical concepts of Boussinesq eddy-viscosity and linear Reynolds-stress transport,the nonlinear nature of turbulent flolws is now one of the focal points of researcher's concern. The purposc iS to dcvelop the turbulence model which can simulate for modelling studics the complexity of turbulcnce motion more rcalistically, and to increase the adaptivity of the model in applications. Significant progress has heen made over the last fe...