«FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH»
The present research centers on the phenomenon of film cooling across curved surfaces with coolant delivery through a transverse trench. The primary objective of this work is to scrutinize the efficacy and physical characteristics of film cooling under controlled conditions, simulating a system wher...
Збережено в:
| Дата: | 2023 |
|---|---|
| Автори: | , |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
Institute of Engineering Thermophysics of NAS of Ukraine
2023
|
| Онлайн доступ: | https://ihe.nas.gov.ua/index.php/journal/article/view/556 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Thermophysics and Thermal Power Engineering |
Репозитарії
Thermophysics and Thermal Power Engineering| id |
oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-556 |
|---|---|
| record_format |
ojs |
| spelling |
oai:ojs2.ihenasgovua.s43.yourdomain.com.ua:article-5562024-02-13T11:20:20Z «ПЛІВКОВЕ ОХОЛОДЖЕННЯ КРИВОЛІНІЙНИХ ПОВЕРХОНЬ З ПОДАЧЕЮ ВТОРИННОГО ПОТОКУ ЧЕРЕЗ ОТВОРИ В ПОПЕРЕЧНІЙ ТРАНШЕЇ» «FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» Potapov, S.V. Khalatov, A.A. The present research centers on the phenomenon of film cooling across curved surfaces with coolant delivery through a transverse trench. The primary objective of this work is to scrutinize the efficacy and physical characteristics of film cooling under controlled conditions, simulating a system where coolant is supplied via a single series of inclined holes within a transverse trench. This study focuses on the examination of film cooling efficiency of surfaces characterized by both negative and positive curvature, juxtaposed with a reference flat surface. The research endeavors to delineate the impact of the curvature of the surface to the efficiency of film cooling when coolant is supplied through a sole series of inclined holes within the transverse trench. Calculations were executed under minimal external factors (low temperatures, no rotation, low turbulence) to determine “clear” impact of the curvature. Given the intricate nature of fluid dynamics and heat transfer phenomena involved in this context, the experimental investigation was executed using computational fluid dynamics (CFD) simulations facilitated by the commercial software package ANSYS CFX 2020 R2. The SST turbulence model, low-temperature conditions and low turbulence were used in the calculations. The results of the calculations showed a weak influence of surface curvelinearity on the efficiency of film cooling. On a convex surface, the obtained results practically coincide with the data for a flat surface, and on a curved surface, the efficiency decreases in the region 3 < x/d < 30 at m = 1.5 and 2.0. У роботi представлені результати комп’ютерного моделювання ефективності плiвкового охолодження на випуклій і увігнутій поверхні постійної кривизни при турбулентному режимі основного потоку. Вторинний потік (охолоджувач) подавався через дискретнi отвори, що знаходяться в траншеї, дослідження виконано для параметру вдуву m в діапазоні вiд 0,5 до 2,0. В розрахунках використовувалась SST модель турбулентності, низькотемпературні умови і низька турбулентність. Результати розрахунків показали слабкий вплив криволінійності поверхні на ефективність плівкового охолодження. На випуклій поверхні отримані результати практично співпадають з даними для плоскої поверхні, а на увігнутій – ефективність зменшується в області 3 < x/d < 30 при m = 1.5 і 2.0. Institute of Engineering Thermophysics of NAS of Ukraine 2023-11-23 Article Article application/pdf https://ihe.nas.gov.ua/index.php/journal/article/view/556 10.31472/ttpe.4.2023.5 Thermophysics and Thermal Power Engineering; Vol 45 No 4 (2023): Thermophysics and Thermal Power Engineering; 45-52 Теплофизика и Теплоэнергетика; Vol 45 No 4 (2023): Thermophysics and Thermal Power Engineering; 45-52 Теплофізика та Теплоенергетика; Vol 45 No 4 (2023): Thermophysics and Thermal Power Engineering; 45-52 2663-7235 uk https://ihe.nas.gov.ua/index.php/journal/article/view/556/479 https://creativecommons.org/licenses/by/4.0 |
| institution |
Thermophysics and Thermal Power Engineering |
| baseUrl_str |
|
| datestamp_date |
2024-02-13T11:20:20Z |
| collection |
OJS |
| language |
Ukrainian |
| format |
Article |
| author |
Potapov, S.V. Khalatov, A.A. |
| spellingShingle |
Potapov, S.V. Khalatov, A.A. «FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» |
| author_facet |
Potapov, S.V. Khalatov, A.A. |
| author_sort |
Potapov, S.V. |
| title |
«FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» |
| title_short |
«FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» |
| title_full |
«FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» |
| title_fullStr |
«FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» |
| title_full_unstemmed |
«FILM COOLING OVER THE CURVED SURFACES WITH COOLANT SUPPLY INTO THE TRANSVERSE TRENCH» |
| title_sort |
«film cooling over the curved surfaces with coolant supply into the transverse trench» |
| title_alt |
«ПЛІВКОВЕ ОХОЛОДЖЕННЯ КРИВОЛІНІЙНИХ ПОВЕРХОНЬ З ПОДАЧЕЮ ВТОРИННОГО ПОТОКУ ЧЕРЕЗ ОТВОРИ В ПОПЕРЕЧНІЙ ТРАНШЕЇ» |
| description |
The present research centers on the phenomenon of film cooling across curved surfaces with coolant delivery through a transverse trench. The primary objective of this work is to scrutinize the efficacy and physical characteristics of film cooling under controlled conditions, simulating a system where coolant is supplied via a single series of inclined holes within a transverse trench.
This study focuses on the examination of film cooling efficiency of surfaces characterized by both negative and positive curvature, juxtaposed with a reference flat surface. The research endeavors to delineate the impact of the curvature of the surface to the efficiency of film cooling when coolant is supplied through a sole series of inclined holes within the transverse trench. Calculations were executed under minimal external factors (low temperatures, no rotation, low turbulence) to determine “clear” impact of the curvature.
Given the intricate nature of fluid dynamics and heat transfer phenomena involved in this context, the experimental investigation was executed using computational fluid dynamics (CFD) simulations facilitated by the commercial software package ANSYS CFX 2020 R2.
The SST turbulence model, low-temperature conditions and low turbulence were used in the calculations.
The results of the calculations showed a weak influence of surface curvelinearity on the efficiency of film cooling. On a convex surface, the obtained results practically coincide with the data for a flat surface, and on a curved surface, the efficiency decreases in the region 3 < x/d < 30 at m = 1.5 and 2.0. |
| publisher |
Institute of Engineering Thermophysics of NAS of Ukraine |
| publishDate |
2023 |
| url |
https://ihe.nas.gov.ua/index.php/journal/article/view/556 |
| work_keys_str_mv |
AT potapovsv plívkoveoholodžennâkrivolíníjnihpoverhonʹzpodačeûvtorinnogopotokučerezotvorivpoperečníjtranšeí AT khalatovaa plívkoveoholodžennâkrivolíníjnihpoverhonʹzpodačeûvtorinnogopotokučerezotvorivpoperečníjtranšeí AT potapovsv filmcoolingoverthecurvedsurfaceswithcoolantsupplyintothetransversetrench AT khalatovaa filmcoolingoverthecurvedsurfaceswithcoolantsupplyintothetransversetrench |
| first_indexed |
2025-12-17T13:56:00Z |
| last_indexed |
2025-12-17T13:56:00Z |
| _version_ |
1851763993756041216 |