Zobrazeno 1 - 10
of 2 168
pro vyhledávání: '"large eddy simulation (LES)"'
Publikováno v:
Gaoyuan qixiang, Vol 43, Iss 2, Pp 293-302 (2024)
The Qinghai-Xizang Plateau has complex terrain and climate， which is a great challenge to the airdrop parachute landing and aviation safety.This research focuses on Qinghai-Xizang Plateau wind field simulation in boundary layer based on numerical c
Externí odkaz:
https://doaj.org/article/4716f28caa61405cb71bd200caa9de56
Autor:
Namug Heo, Ji-Hye Kim
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 9, p 1681 (2024)
The occurrence of cavitation in marine propellers is a major source of noise in ships. Consequently, the occurrence and noise characteristics of cavitation must be better understood to control this issue. This study focuses on identifying the occurre
Externí odkaz:
https://doaj.org/article/b9831a20c3e44d539fa163becb69d6de
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7789 (2024)
The impact of tropical cyclones on the operation of bridges and railways are mostly dependent on the forecast wind speed trend (upward, downward or staying steady) at present in Hong Kong. There are requests to forecast the exceedance of wind speed t
Externí odkaz:
https://doaj.org/article/d79d3d5e1bc046799d3ccd89195a89ad
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7895 (2024)
Pipe bends disrupt the flow, resulting in an asymmetric velocity field across the pipe diameter (D). We examined the recovery length required for the flow to return to a symmetric velocity profile downstream of a sharp elbow. The wall-resolved Large
Externí odkaz:
https://doaj.org/article/263b6c5efd9f4e17a50f97f7bca4ca0f
Publikováno v:
Results in Engineering, Vol 21, Iss , Pp 101679- (2024)
In the present article, we introduce a local hybrid RANS/LES turbulence model, the Flow-based Stress-Blended Eddy Simulation (Fb-SBES). The methodology is applied to urban flow simulations in atmospheric boundary layer. The blending from RANS to LES
Externí odkaz:
https://doaj.org/article/018b8d91a3524349a3edd5ce4699a2d0
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 17, Iss 1, Pp 43-59 (2023)
In this study, the Large Eddy Simulation (LES) model in OpenFOAM was used to investigate the scale effects in the physical modeling of recirculating shallow flow at low Froude numbers. A laboratory test of turbulent flow through a submerged conical i
Externí odkaz:
https://doaj.org/article/ca1b11447957422bbd0542d87e61af67
Publikováno v:
Fluids, Vol 9, Iss 6, p 144 (2024)
This study explores the dynamics of turbulent flow around a sphere at a Reynolds number of Re=103 using large-eddy simulation, focusing on the intricate connection between vortices and strain within the recirculation bubble of the wake. Employing a r
Externí odkaz:
https://doaj.org/article/c05bc423f1d74573aef9fca91f9f6b58
Publikováno v:
Powders, Vol 2, Iss 3, Pp 607-623 (2023)
The CFD simulation of cyclone separators has remarkably evolved over the past decades. Nowadays, computational models are essential for designing, analyzing, and optimizing these devices. Due to the intrinsic anisotropy of the flow inside these separ
Externí odkaz:
https://doaj.org/article/7247beb0920c476db41ea698461339ee
Publikováno v:
Wind Energy, Vol 26, Iss 6, Pp 521-537 (2023)
Abstract In this work, a closely spaced dual turbine concept is studied. The distance between the two side‐by‐side hubs is 1.05 D, where D is the rotor diameter. This configuration has a potential benefit for offshore wind developments in which p
Externí odkaz:
https://doaj.org/article/6e89700bc22846dcb8ac4bda9b556950
Publikováno v:
International Journal of Numerical Methods for Heat & Fluid Flow, 2023, Vol. 33, Issue 5, pp. 1955-1980.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/HFF-06-2022-0389