NUMERICAL modeling HYDRAULIC CHARACTERISTICS OF AN elbow exhaust duct OF A gas turbine engine
The article considers the particularities of calculation of the hydraulic characteristics of the elbow exhaust duct using Ansys CFX. Results of simulation of the hydraulic characteristics in three-dimensional formulation for models of turbulence SST and k-ω with the construction of structured hexagonal grid are presents. The conducted research allows determine the joint influence of the main geometrical parameters on hydraulic characteristics of an elbow exhaust duct. The selection of parameters for the numerical simulation, analysis of possible errors introduced in the model and experiment, ensuring an acceptable agreement between calculated and experimental hydraulic characteristics in working range of operation mode are presents.