
Ð’ данной работе проведен анализ влиÑÐ½Ð¸Ñ Ð³ÐµÐ¾Ð¼ÐµÑ‚Ñ€Ð¸Ñ‡ÐµÑких параметров на потери в межтурбинных диффузорах. ПоÑтроена Ñ‚Ñ€ÐµÑ…Ð¼ÐµÑ€Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»ÑŒ проточной чаÑти блока «Ñтупень КТ – переходный диффузор - Ñтупень СТ» в Ñреде SolidWorks. С помощью программы ANSYS ICEM CFD выполнено Ñеточное разбиение раÑчетной модели переходного диффузора. Ð’ программе ANSYS Turbogrid выполнено Ñеточное разбиение раÑчетной модели лопаток КТ и СТ – отдельно Ð´Ð»Ñ Ð½Ð°Ð¿Ñ€Ð°Ð²Ð»Ñющего аппарата и рабочего колеÑа. Ð’ программе       CFX-Pre разработана раÑÑ‡ÐµÑ‚Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»ÑŒ, предÑтавлÑÑŽÑ‰Ð°Ñ Ñобой Ñектор проточной чаÑти. Проведен газодинамичеÑкий раÑчет в программе ANSYS CFX. Выполнено иÑÑледование Ñтруктуры потока в переходном канале в блоке «Ñтупень КТ - переходный диффузор - Ñтупень СТ». Выполнены раÑчеты проточной чаÑти Ñ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð½Ð¾Ð¹ геометрией. По результатам иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ñделан вывод о наиболее оптимальной геометрии переходного диффузора.
In this paper, we analyzed the influence of geometric parameters on losses in inter-turbine diffusers. A three-dimensional model of the flow part of the block "CT stage - transitional diffuser - ST stage" in the SolidWorks environment was built. Using the ANSYS ICEM CFD program, a grid partitioning of the design model of the transitional diffuser was performed. In the ANSYS Turbogrid program, a grid partitioning of the calculation model of the CT and CT blades was performed - separately for the guide vane and the impeller. In the CFX-Pre program, a calculation model has been developed, which is a sector of the flow path. A gas dynamic calculation was carried out in the ANSYS CFX program. A study of the flow structure in the transition channel in the block "CT stage - transition diffuser - ST stage" was carried out. Calculations of the flow path with modified geometry were performed. Based on the results of the study, a conclusion was made about the most optimal geometry of the transitional diffuser.
gas turbine, опÑимизаÑиÑ, диÑÑÑзоÑнÑй ÑÑÑекÑ, Ð³Ð°Ð·Ð¾Ð²Ð°Ñ ÑÑÑбина, transition diffuser, diffuser effect, пеÑÐµÑ Ð¾Ð´Ð½Ñй диÑÑÑзоÑ, двÑÑ Ð²Ð°Ð»ÑÐ½Ð°Ñ ÐТУ, two-shaft gas turbine, ANSYS CFD, optimization
gas turbine, опÑимизаÑиÑ, диÑÑÑзоÑнÑй ÑÑÑекÑ, Ð³Ð°Ð·Ð¾Ð²Ð°Ñ ÑÑÑбина, transition diffuser, diffuser effect, пеÑÐµÑ Ð¾Ð´Ð½Ñй диÑÑÑзоÑ, двÑÑ Ð²Ð°Ð»ÑÐ½Ð°Ñ ÐТУ, two-shaft gas turbine, ANSYS CFD, optimization
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