title: ÐÑÐµÐ½ÐºÐ° ÑÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸Ñ Ð¾Ñ Ð»Ð°Ð¶Ð´Ð°ÑÑÐµÐ³Ð¾ Ð²Ð¾Ð·Ð´ÑÑ Ð° Ð·Ð° Ð²ÑÑ Ð¾Ð´Ð½Ð¾Ð¹ ÐºÑÐ¾Ð¼ÐºÐ¾Ð¹ Ð½Ð° Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÐµ Ð¿Ð¾ÑÐµÑÐ¸ ÑÐ¾Ð¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ Ð°Ð¿Ð¿Ð°ÑÐ°Ñ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: Assessment of mixing of cooling air behind the output edge for profile losses of the nozzle apparatus
Creators: name: ÐÐµÐ±ÐµÐ´ÐµÐ², ÐÐ²Ð°Ð½
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: 2020
Subjects: ÐÐ¢Ð-25
ÐºÐ¾Ð½Ð²ÐµÐºÑÐ¸Ð²Ð½Ð¾Ðµ Ð¾Ñ Ð»Ð°Ð¶Ð´ÐµÐ½Ð¸Ðµ
ÑÐ¾Ð¿Ð»Ð¾Ð²Ð°Ñ Ð»Ð¾Ð¿Ð°ÑÐºÐ°
Ð´ÐµÑÐ»ÐµÐºÑÐ¾Ñ
Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÐµ
ÑÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð²
GTN-25
convective cooling
nozzle blade
deflector
profile losses
mixing of flows

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÑÐµÐ½ÐºÐ° ÑÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸Ñ Ð¾ÑÐ»Ð°Ð¶Ð´Ð°ÑÑÐµÐ³Ð¾ Ð²Ð¾Ð·Ð´ÑÑÐ° Ð·Ð° Ð²ÑÑÐ¾Ð´Ð½Ð¾Ð¹ ÐºÑÐ¾Ð¼ÐºÐ¾Ð¹ Ð½Ð° Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÐµ Ð¿Ð¾ÑÐµÑÐ¸ ÑÐ¾Ð¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ°Â». ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÑ Ð¿Ð¾ÑÐµÑÑ, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ñ Ð¿ÑÐ¸ ÑÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸Ð¸ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð² Ð·Ð° Ð²ÑÑÐ¾Ð´Ð½Ð¾Ð¹ ÐºÑÐ¾Ð¼ÐºÐ¾Ð¹ ÑÐ¾Ð¿Ð»Ð¾Ð²Ð¾Ð¹ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸, Ð¸Ñ Ð¾ÑÐµÐ½ÐºÐµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¸ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ðµ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ ÑÐ°ÐºÐ¾Ð²ÑÑ. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼ Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ ÑÐ¾Ð¿Ð»Ð¾Ð²ÑÑ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº. 2. ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¾Ð±ÑÐµÐºÐ°Ð½Ð¸Ñ ÑÐ¾Ð¿Ð»Ð¾Ð²Ð¾Ð¹ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸. 3. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð¾ÑÐ»Ð°Ð¶Ð´Ð°ÑÑÐµÐ³Ð¾ Ð²Ð¾Ð·Ð´ÑÑÐ° Ð½Ð° Ð²ÑÑÐ¾Ð´Ðµ Ð¸Ð· Ð»Ð¾Ð¿Ð°ÑÐºÐ¸. 4. ÐÑÐµÐ½ÐºÐ° Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÑ Ð¿Ð¾ÑÐµÑÑ. 5. ÐÑÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐµÑÑ Ð² Ð¡Ð. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ðµ ÑÐ°ÑÑÐµÑÑ, Ð¿Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑÐ¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ ÑÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð² Ð³Ð°Ð·Ð° Ñ Ð¾ÑÐ»Ð°Ð´Ð¸ÑÐµÐ»ÐµÐ¼. ÐÐ½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ Ð´Ð²ÑÐ¼Ñ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸: ÑÐ¿ÑÐ¾ÑÐµÐ½Ð½ÑÐ¼, Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð½ÑÑ Ð±ÐµÐ·ÑÐ°Ð·Ð¼ÐµÑÐ½ÑÑ ÑÐºÐ¾ÑÐ¾ÑÑÐµÐ¹, Ð¸ ÑÑÐ¾ÑÐ½ÐµÐ½Ð½ÑÐ¼, ÐºÐ¾ÑÐ¾ÑÑÐ¹ ÑÑÐ¸ÑÑÐ²Ð°ÐµÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ ÑÐµÑÐµÑÐºÐ¸, Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð¸ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ. Ð Ð¸ÑÐ¾Ð³Ðµ Ð±ÑÐ»Ð¾ ÑÐ¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ð¾Ð±ÑÐµÐºÐ°Ð½Ð¸Ðµ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸ Ð´Ð²ÑÐ¼Ñ Ð¿Ð¾ÑÐ¾ÐºÐ°Ð¼Ð¸ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ Ansys. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð´Ð°Ð½Ð½ÑÐµ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ´Ð¸Ð»Ð¸ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÑÐ¸Ð»ÑÐ½ÑÑ Ð¿Ð¾ÑÐµÑÑ Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ Ñ Ð²ÑÐ¿ÑÑÐºÐ¾Ð¼ Ð²Ð¾Ð·Ð´ÑÑÐ° Ð¸Ð· Ð²ÑÑÐ¾Ð´Ð½Ð¾Ð¹ ÐºÑÐ¾Ð¼ÐºÐ¸. ÐÐ¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾ Ð±ÑÐ»Ð¸ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐµÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð²Ð°ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÑÐ¾Ð´Ð½ÑÐ¼Ð¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ°Ð¼Ð¸ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð¾ÑÐ»Ð°Ð´Ð¸ÑÐµÐ»Ñ Ð´Ð»Ñ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² ÑÐ´ÑÐµ ÐºÑÐ¾Ð¼Ð¾ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐ´Ð°. ÐÐ°Ð½Ð½ÑÐµ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð¿Ð¾Ð²ÑÑÐ¸Ð»Ð¸ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¼ÐµÐ½ÑÑÐ¸Ð»Ð¸ Ð¾Ð±ÑÑÑ Ð´Ð»Ð¸Ð½Ñ ÐºÑÐ¾Ð¼Ð¾ÑÐ½Ð¾Ð³Ð¾ ÑÐ»ÐµÐ´Ð°.
description: The topic of the final qualification work: "Assessment of mixing of cooling air behind the output edge for profile losses of the nozzle apparatus". This work is devoted to the study of profile losses that occur when mixing flows behind the output edge of the nozzle blade, their impact assessment and the creation of recommendations for reducing them. Tasks that were solved during the research: 1. Study of nozzle blade cooling systems. 2. The simulation of the flow around the nozzle vanes. 3. Determining the parameters of the cooling air at the outlet of the blade. 4. Assessment of profile losses. 5. Development of recommendations for reducing losses in SA. In this paper, gas-dynamic calculations are performed, showing the effect of mixing gas flows with the cooler. The analysis was performed using two methods: rough, using the dimensionless velocities given, and refined, which takes into account the parameters of the grid, the main flow, and the cooling system. As a result, the flow of two streams around the blade was modeled in the Ansys program. The obtained data confirmed the reduction of profile losses when using cooling with air release from the output edge. Additionally, recommendations were made to reduce losses by varying the initial flow parameters of the cooler to increase the average pressure in the core of the edge trace. These actions increased the speed coefficient and reduced the total length of the edge track.