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Оптимизация параметров Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ð¾Ð³Ð¾ диффузора Ð´Ð²ÑƒÑ Ð²Ð°Ð»ÑŒÐ½Ð¾Ð¹ газотурбинной установки

выпускная квалификационная работа магистра

Оптимизация параметров Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ð¾Ð³Ð¾ диффузора Ð´Ð²ÑƒÑ Ð²Ð°Ð»ÑŒÐ½Ð¾Ð¹ газотурбинной установки

Abstract

В данной работе проведен анализ влияния геометрических параметров на потери в межтурбинных диффузорах. Построена трехмерная модель проточной части блока «ступень КТ – переходный диффузор - ступень СТ» в среде SolidWorks. С помощью программы ANSYS ICEM CFD выполнено сеточное разбиение расчетной модели переходного диффузора. В программе ANSYS Turbogrid выполнено сеточное разбиение расчетной модели лопаток КТ и СТ – отдельно для направляющего аппарата и рабочего колеса. В программе       CFX-Pre разработана расчетная модель, представляющая собой сектор проточной части. Проведен газодинамический расчет в программе ANSYS CFX. Выполнено исследование структуры потока в переходном канале в блоке «ступень КТ - переходный диффузор - ступень СТ». Выполнены расчеты проточной части с измененной геометрией. По результатам исследования сделан 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.

Keywords

gas turbine, оптимизация, диффузорный эффект, газовая турбина, transition diffuser, diffuser effect, Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ñ‹Ð¹ диффузор, Ð´Ð²ÑƒÑ Ð²Ð°Ð»ÑŒÐ½Ð°Ñ ГТУ, two-shaft gas turbine, ANSYS CFD, optimization

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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