Zobrazeno 1 - 10
of 839
pro vyhledávání: '"k-ε model"'
Autor:
Arka Banerjee, Joydeep Mazumdar
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-25 (2024)
Abstract Mixing elbows are widely used in various industrial processes to mix two different Newtonian or non-Newtonian fluids under turbulent flow conditions. This study numerically investigates the fluid flow and mixing characteristics in 90-degree
Externí odkaz:
https://doaj.org/article/a7eaa8f4a9e942ffa357a749d431c670
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
Turbulence modelling is crucial in predicting train aerodynamics while its performance is closely related to the model closure coefficients. To reveal the influence, uncertainty quantification and sensitivity analysis are conducted on the closure coe
Externí odkaz:
https://doaj.org/article/ee08c45732af470a8b8000c3c442fe15
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 9, p 1547 (2024)
In the field of ocean engineering, the variation of flow field during ship-to-ship (STS) interaction has been a hot topic. Noteworthy, the effect of vortex distribution on flow field characteristic variations during STS interaction remains insufficie
Externí odkaz:
https://doaj.org/article/b88e765aa9624e15897c73d70ec07ba2
Autor:
J. J. H. Brouwers
Publikováno v:
Inventions, Vol 9, Iss 5, p 95 (2024)
An upgrade is presented of a recently published model for the calculation of statistical averages of turbulent flow variables. Instead of empirical constructions, important parts of the model are based on general principles of statistical turbulence
Externí odkaz:
https://doaj.org/article/468883011fde4d9d96af58dfb8533a61
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7497 (2024)
The occurrence of extreme weather, such as heavy rainfall and sudden increases in precipitation, has led to a notable rise in the frequency of flooding in subway stations. By conducting numerical simulations of flood disasters in subway stations unde
Externí odkaz:
https://doaj.org/article/edae09d27fd148bb8ab93fe80c632027
Autor:
M.A. Pakhomov, U.K. Zhapbasbayev
Publikováno v:
Heliyon, Vol 10, Iss 2, Pp e24062- (2024)
RANS simulation of turbulent non-isothermal flow in a pipe by transition of Newtonian fluid into a viscoplastic non-Newtonian fluid is carried out. Carrier phase turbulence was modeled using two-equation isotropic k‒ε˜ – model and Reynolds stre
Externí odkaz:
https://doaj.org/article/8117dde066994a56b5f0681d8af75064
Publikováno v:
Applied Sciences, Vol 14, Iss 13, p 5432 (2024)
The global adoption of face masks as a preventive measure against the spread of the SARS-CoV-2 virus (COVID-19) has spurred extensive research into their filtration efficacy. This study begins by elucidating various mechanisms of particle penetration
Externí odkaz:
https://doaj.org/article/ca4afb6f5f694bf4a325f3a2548462f4
Autor:
J. J. H. Brouwers
Publikováno v:
Inventions, Vol 9, Iss 2, p 38 (2024)
Predictions are presented of mean values of statistical variables of large-scale turbulent flow of the widely used basic k-ϵ model, and of a new model, which is based on general statistical descriptions of turbulence. The predictions are verified ag
Externí odkaz:
https://doaj.org/article/be81301475014ae98c4360d2c1ce11d9
Autor:
Madaliev Murodil, Usmonov Mavlonbek, Fayzullaev Jamshid, Khusanov Yunusali, Radjapov Komil, Sattorov Abdusalom, Jalilov Inomjon
Publikováno v:
E3S Web of Conferences, Vol 538, p 01012 (2024)
In this research work, we conducted an extensive numerical study of the flow around the NASA 4412 airfoil in both two- and threedimensional spaces. To do this, we used advanced computational methods and tools, such as the Comsol Multiphysics software
Externí odkaz:
https://doaj.org/article/172904ee856949dda87b34a3b9db14c1
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