title: ÐÐµÑÐ¾Ð´Ñ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐ¿ÐµÐ½Ð¸ ÐÐÐ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Methods for modernization of the stage of the LPU
Creators: name: ÐÐ°ÑÑÑÐ¾Ð², ÐÐ³Ð¾Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¢ÑÑÐ±Ð¸Ð½Ð½ÑÐµ ÑÑÑÐ¿ÐµÐ½Ð¸
ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÑÐ°Ð±Ð¾ÑÐµÐµ ÐºÐ¾Ð»ÐµÑÐ¾
ÑÐ¾Ð¿Ð»Ð¾Ð²Ð¾Ð¹ Ð°Ð¿Ð¿Ð°ÑÐ°Ñ
Ð¾ÑÐµÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÑÐ½Ð¾Ðµ ÑÐ¾Ð¿Ð»Ð¾
turbine wheel
guide vane
axisymmetric nozzle

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÐ¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¼Ð°Ð»Ð¾ÑÐ°ÑÑÐ¾Ð´Ð½ÑÑ Ð¾ÑÐµÐ²ÑÑ ÑÑÑÐ¿ÐµÐ½ÐµÐ¹ Ñ Ð¾ÑÐµÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÑÐ½ÑÐ¼Ð¸ ÑÐ¾Ð¿Ð»Ð°Ð¼Ð¸Â». ÐÑÐµÐ´Ð¼ÐµÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÑÑÑÑ ÑÑÑÐ±Ð¸Ð½Ð½ÑÐµ ÑÑÑÐ¿ÐµÐ½Ð¸ Ñ Ð¼Ð°Ð»ÑÐ¼Ð¸ Ð¾Ð±ÑÑÐ¼Ð½ÑÐ¼Ð¸ ÑÐ°ÑÑÐ¾Ð´Ð°Ð¼Ð¸, Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½ÑÐ¼Ð¸ Ð½Ð° ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÐÐÐ. Ð¡ Ð²Ð·Ð³Ð»ÑÐ´Ð¾Ð¼ Ð½Ð° Ð¿ÑÐµÐ´ÑÐ´ÑÑÐ¸Ðµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÐºÐ°ÑÐµÐ´ÑÑ ÑÑÑÐ±Ð¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¡ÐÐ±ÐÐ£, Ð¿Ð¾ÑÐ²ÑÑÑÐ½Ð½ÑÐµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼Ð¾Ð¹ ÑÐµÐ¼Ðµ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð·Ð°ÑÑÐ±ÐµÐ¶Ð½ÑÐµ ÑÐ°Ð±Ð¾ÑÑ, ÑÐµÑÐ°ÐµÑÑÑ Ð²Ð¾Ð¿ÑÐ¾Ñ Ð¾ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ¼ Ð¿ÑÑÐ¸ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð´Ð°Ð½Ð½ÑÑ ÑÑÑÐ¿ÐµÐ½ÐµÐ¹ Ð¿ÑÑÑÐ¼ Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÑÐ¾Ð¿Ð»Ð¾Ð²ÑÑ ÑÐµÑÑÑÐ¾Ðº Ð¸ Ð¿ÑÐ¾ÑÐ¸Ð»ÐµÐ¹ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ Ð¸Ð·Ð²ÐµÑÑÐ½ÑÑ ÑÐ¸ÑÐ»ÐµÐ½Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ. Ð ÑÐ¾Ð´Ðµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÑÐ°ÑÑÑÑ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ðµ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÐµ Ð·Ð°Ð´Ð°ÑÐ¸: ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ ÑÑÑÑÐ¼ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¾ÑÐµÐ²Ð¾Ð¹ ÑÑÑÐ¿ÐµÐ½Ð¸ ÐÐ Ð¢ Ñ Ð¾ÑÐµÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸ÑÐ½ÑÐ¼Ð¸ ÑÐ¾Ð¿Ð»Ð°Ð¼Ð¸. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÑÑÐ¼ÐµÑÐ½ÑÑ ÑÐ°ÑÑÑÑÐ½ÑÑ Ð¾Ð±Ð»Ð°ÑÑÐµÐ¹ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ CAD Siemens NX Ð¸ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¿Ð°ÐºÐµÑÐ° Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² ANSYS CFX.Ð Ð°ÑÑÑÑ Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ¾Ð² ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼ÑÑ ÑÑÑÐ¿ÐµÐ½ÐµÐ¹ Ñ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐ¸Ð¼ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸ÐµÐ¼ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº. Ð¡ÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¸Ð½ÑÐµÐ³ÑÐ°Ð»ÑÐ½ÑÑ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº.
description: Topic of the final qualification work: "Modernization of low-flow axial stages with axisymmetric nozzles". The subject of study of the presented work is turbine stages with low volumetric flow rates, based on the LPI design.With a look at the previous developments of the Peter the Great St. Petersburg Polytechnic University Department of Turbine Engineering, dedicated to the topic under consideration, as well as foreign works, the issue of further ways to improve the efficiency of these stages by modernizing the design of nozzle arrays and rotor blade profiles using well-known numerical methods of experimental research is being resolved. Construction of a three-dimensional model of an axial MRI stage with axisymmetric nozzles. Development of three-dimensional computational domains using CAD Siemens NX and a modern software package for the finite element method ANSYS CFX. Calculation of gas dynamics of various design options for the stages under consideration, followed by determination of the main characteristics. Comparison and analysis of the obtained integral characteristics.