The analysis of gas-dynamic structure of stream in grates of profiles of axial compressor of turbo-engine

• Дата: 2015
• Автори: Карпик, А. А., Яковлев, В. А., Воробьев, Ю. С.
• Формат: Стаття
• Мова: Russian
• Опубліковано: Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України 2015
• Теми: compressor; shoulder-blade vehicle; airfoil cascade; viscous flow; numerical simulation; unstationarity
• Онлайн доступ: https://journals.uran.ua/jme/article/view/57521
• Назва журналу: Journal of Mechanical Engineering

The numerical simulation of a three-dimensional viscous flow in cascade of the axial compressor of low pressure of the gas-turbine engine is presented. Gas-dynamic calculation of a flow in the first compressor stage in non-stationary three-dimensional statement in program complex F is carried out. The two-equation differential k-ω SST Menter’s turbulence model is used. The calculation is carried out on a differential H-grid with quantity of cells more than 1,3 million in one blade channel. Distribution of speeds and pressure fields is as a result received, the main reasons nonuniformity of parameters are defined, adverse areas of a flow in the blade channel are revealed, the assessment of parameters of a flow in the grid profiles is carried out. The gas-dynamic structure of a flow has changeable character on blade height from a root to the periphery. It can be the reason of the alternating strain causing bending and torsion vibration at action of a non-stationary flow.