EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY
The subject of the article is to determine the level of incipient turbulence in the wind tunnel T-1 which is based on the method of measuring the pressure drop. The purpose is to experimentally determine the level of incipient turbulence in the working part of wind tunnel T-1 of Ivan Kozhedub Kharki...
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| Format: | Article |
| Language: | English |
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National Technical University "Kharkiv Polytechnic Institute"
2021-06-01
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| Series: | Сучасні інформаційні системи |
| Subjects: | |
| Online Access: | http://ais.khpi.edu.ua/article/view/234994 |
| _version_ | 1798027268364173312 |
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| author | Віталій Бездєльний Сергій Шевченко Ілля Грідасов |
| author_facet | Віталій Бездєльний Сергій Шевченко Ілля Грідасов |
| author_sort | Віталій Бездєльний |
| collection | DOAJ |
| description | The subject of the article is to determine the level of incipient turbulence in the wind tunnel T-1 which is based on the method of measuring the pressure drop. The purpose is to experimentally determine the level of incipient turbulence in the working part of wind tunnel T-1 of Ivan Kozhedub Kharkiv National Air Force University in preparation for aerodynamic testing of aircraft models. Research methods: the method of pressure drop on the surface of the sphere by drainage. The following results of experimental determination of the level of incipient turbulence in the wind tunnel T-1 were obtained. It is established that the wind tunnel T-1 has a level of incipient turbulence 0,5…0,9 %, which corresponds to the normal condition for further experimental studies. Conclusions. According to the results of studies of the incipient turbulence in the wind tunnel T-1 by the method of pressure drop, the main dependences are obtained, and the incipient turbulence of the flow for the wooden sphere x = 0,9 %, and for the metal sphere x = 0,5 %, is determined. Determining the pressure distribution and aerodynamic drag does not involve measures to balance the aerodynamic scales and their certification, which determines the necessary role in the obtained reliable results of the experimental study, and this favors the drainage method. |
| first_indexed | 2024-04-11T18:48:35Z |
| format | Article |
| id | doaj.art-8aab55ffe837489995827baa409efa7c |
| institution | Directory Open Access Journal |
| issn | 2522-9052 |
| language | English |
| last_indexed | 2024-04-11T18:48:35Z |
| publishDate | 2021-06-01 |
| publisher | National Technical University "Kharkiv Polytechnic Institute" |
| record_format | Article |
| series | Сучасні інформаційні системи |
| spelling | doaj.art-8aab55ffe837489995827baa409efa7c2022-12-22T04:08:30ZengNational Technical University "Kharkiv Polytechnic Institute"Сучасні інформаційні системи2522-90522021-06-015210.20998/2522-9052.2021.2.13EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITYВіталій Бездєльний0Сергій Шевченко1Ілля Грідасов2Ivan Kozhedub Kharkiv National Air Force University, KharkivIvan Kozhedub Kharkiv National Air Force University, KharkivIvan Kozhedub Kharkiv National Air Force University, KharkivThe subject of the article is to determine the level of incipient turbulence in the wind tunnel T-1 which is based on the method of measuring the pressure drop. The purpose is to experimentally determine the level of incipient turbulence in the working part of wind tunnel T-1 of Ivan Kozhedub Kharkiv National Air Force University in preparation for aerodynamic testing of aircraft models. Research methods: the method of pressure drop on the surface of the sphere by drainage. The following results of experimental determination of the level of incipient turbulence in the wind tunnel T-1 were obtained. It is established that the wind tunnel T-1 has a level of incipient turbulence 0,5…0,9 %, which corresponds to the normal condition for further experimental studies. Conclusions. According to the results of studies of the incipient turbulence in the wind tunnel T-1 by the method of pressure drop, the main dependences are obtained, and the incipient turbulence of the flow for the wooden sphere x = 0,9 %, and for the metal sphere x = 0,5 %, is determined. Determining the pressure distribution and aerodynamic drag does not involve measures to balance the aerodynamic scales and their certification, which determines the necessary role in the obtained reliable results of the experimental study, and this favors the drainage method.http://ais.khpi.edu.ua/article/view/234994incipient turbulencewind tunnelpressure dropaerodynamic scalesexperimental studydrainage method |
| spellingShingle | Віталій Бездєльний Сергій Шевченко Ілля Грідасов EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY Сучасні інформаційні системи incipient turbulence wind tunnel pressure drop aerodynamic scales experimental study drainage method |
| title | EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY |
| title_full | EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY |
| title_fullStr | EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY |
| title_full_unstemmed | EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY |
| title_short | EXPERIMENTAL DETERMINATION OF THE LEVEL OF INCIPIENT TURBULENCE IN THE WORKING PART OF THE T-1 WIND TUNNEL OF IVAN KOZHEDUB KHARKIV NATIONAL AIR FORCE UNIVERSITY |
| title_sort | experimental determination of the level of incipient turbulence in the working part of the t 1 wind tunnel of ivan kozhedub kharkiv national air force university |
| topic | incipient turbulence wind tunnel pressure drop aerodynamic scales experimental study drainage method |
| url | http://ais.khpi.edu.ua/article/view/234994 |
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