Zobrazeno 1 - 10
of 2 730
pro vyhledávání: '"Turbulence intensity"'
Autor:
Zhifeng Liu, Yue Yang
Publikováno v:
Advances in Aerodynamics, Vol 6, Iss 1, Pp 1-19 (2024)
Abstract Bio-inspired micro-air-vehicles (MAVs) usually operate in the atmospheric boundary layer at a low Reynolds number and complex wind conditions including large-scale turbulence, strong shear, and gusts. We develop an open jet facility (OJF) to
Externí odkaz:
https://doaj.org/article/aaf94f76499042b58cab8640874b0dd8
Autor:
Rani P. Pawar, Prajna Priyadarshini, T. Dharmaraj, Dada P. Nade, Mahendra N. Patil, Omkar M. Patil, N. Jeni Victor, Sambhaji M. Pawar, D.G. Kanase, Sunil D. Pawar
Publikováno v:
Tropical Cyclone Research and Review, Vol 13, Iss 2, Pp 55-71 (2024)
One of the most important parameters in meteorology is the mean wind profile in the tropical cyclone boundary layer. The vertical profile of wind speed and wind direction were measured during the period of the Nisarga cyclone from May 31st, 2020, to
Externí odkaz:
https://doaj.org/article/71c12312f1ea4441a21e83fce6a44b3f
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 17, Iss 7, Pp 1485-1498 (2024)
This paper presents a comprehensive investigation of flow-induced noise characteristics in ethylene cracking furnace tubes, covering both pre- and post-coking conditions. Large-eddy simulation (LES) was employed in conjunction with a generalized Ligh
Externí odkaz:
https://doaj.org/article/b22bccfb9d654743bc3984790d231b3b
Publikováno v:
Heliyon, Vol 10, Iss 11, Pp e31859- (2024)
Wind is an emerging renewable energy resource, but more useful in cold regions. With the increasing threat of climate change and global warming, the unpredictability of wind energy patterns has been affected. With continual threats from extremes and
Externí odkaz:
https://doaj.org/article/794babb862a24d959e82d430718c823a
Publikováno v:
南方能源建设, Vol 11, Iss 1, Pp 42-53 (2024)
[Introduction] The wake effect of wind turbines is an important cause of energy loss in wind farms. The wake study of wind turbines is beneficial to optimization of the turbine arrangement and improvement of the economic efficiency of wind farms. [Me
Externí odkaz:
https://doaj.org/article/bbdbc999a491467cba941a87ac0882bc
Publikováno v:
IEEE Access, Vol 12, Pp 824-839 (2024)
Pitching turbine blades into the wind increases the thrust coefficient, $C_{T}$ , which increases the power generated by the wind turbine. However, excessive $C_{T}$ increments beyond rotor mean wind speed $C_{T}$ -equivalent, tend to cause overexert
Externí odkaz:
https://doaj.org/article/fac3da1b495541a58d59c739cb42574a
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 18, Iss 6, Pp 49-59 (2023)
ObjectivesThis paper aims to study the influencing factors and mechanisms of ship model resistance prediction uncertainty, as well as proposing corresponding suppression methods. MethodsResistance tests and local flow measurements on the flow around
Externí odkaz:
https://doaj.org/article/39ec6809507249cc98336a701391a7b9
Autor:
José Antônio da Silva, Lucas Pereira da Silva, Júlio César Costa Campos, Antônio Marcos de Oliveira Siqueira, Alexandre Gurgel, Luben Cabezas Gómez
Publikováno v:
REM: International Engineering Journal, Vol 77, Iss 1, Pp 27-37 (2023)
Abstract A continuous increase in levels of atmospheric pollution and emission restrictions has forced scientists and engineers to adopt new strategies to improve and develop internal combustion engines. One strategy is based on the development of ne
Externí odkaz:
https://doaj.org/article/2043d00b02be4c949c68514fb46a2c82
Publikováno v:
Water Science and Engineering, Vol 16, Iss 4, Pp 359-368 (2023)
This study reported and discussed turbulence characteristics, such as turbulence intensity, correlation time scales, and advective length scales. The characteristic air–water time scale, including the particle chord time and length and their probab
Externí odkaz:
https://doaj.org/article/8911c10e5ce845f3a522b9ad22e4d5d5
Publikováno v:
Applied Sciences, Vol 14, Iss 21, p 10080 (2024)
Conical diffusers are widely used in technical devices (gasifiers, turbines, combustion chambers) and technological processes (ejectors, mixers, renewable energy). The perfection of flow gas dynamics in a conical diffuser affects the intensity of hea
Externí odkaz:
https://doaj.org/article/14475aa8c9b240309d1e23918c52cf33