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Kaiwen Pang, Xianbei Huang, Zhuqing Liu, Yaojun Li and Wei Yang
This study aims to research the prediction performance of a bifurcated adaptive DDES (BADDES) model in different turbulent flows with rotation and curvature. The ??-??
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model is modified by the bifurcation approach to account for the rotation and s...
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Matthieu Boudreau, Guy Dumas and Jean-Christophe Veilleux
A detailed numerical investigation of the flow behind a square cylinder at a Reynolds number of 21,400 is conducted to assess the ability of the delayed detached-eddy simulation (DDES) modeling approach to accurately predict the velocity recovery in the ...
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Matthieu Boudreau, Guy Dumas and Jean-Christophe Veilleux
A detailed numerical investigation of the flow behind a square cylinder at a Reynolds number of 21,400 is conducted to assess the ability of the delayed detached-eddy simulation (DDES) modeling approach to accurately predict the velocity recovery in the ...
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Osama Moaaz, Ioannis Dassios, Haifa Bin Jebreen and Ali Muhib
The objective of this study was to improve existing oscillation criteria for delay differential equations (DDEs) of the fourth order by establishing new criteria for the nonexistence of so-called Kneser solutions. The new criteria are characterized by ta...
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Ville M. Viitanen, Antti Hynninen, Tuomas Sipilä and Timo Siikonen
In this paper we present results of delayed detached eddy simulation (DDES) and computational hydroacoustics (CHA) simulations of a marine propeller operating in a cavitation tunnel. DDES is carried out in both wetted and cavitating conditions, and we pe...
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Ville M. Viitanen, Antti Hynninen, Tuomas Sipilä and Timo Siikonen
In this paper we present results of delayed detached eddy simulation (DDES) and computational hydroacoustics (CHA) simulations of a marine propeller operating in a cavitation tunnel. DDES is carried out in both wetted and cavitating conditions, and we pe...
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Changsheng Chen, Guoping Li, Zhenlai Ma, Ziyi Mei, Bo Gao and Ning Zhang
Podded propulsors have become a focal point of research in the field of marine propulsion in recent years due to their high efficiency, low noise, and excellent maneuverability. To investigate the acoustic characteristics induced by the flow field of pod...
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Wenbo Shi, Heng Zhang and Yuanxiang Li
The accurate prediction of blade tip vortices continues to be challenging for the investigation of rotor aerodynamics. In the current work, the blade tip vortex system of a Caradonna?Tung rotor in the hovering state is simulated on account of the framewo...
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Kangshen Xiang, Weijie Chen, Siddiqui Aneeb and Weiyang Qiao
Future UHBR (Ultra-High Bypass-Ratio) engines might cause serious ?turbine noise storms? but, at present, turbine noise prediction capability is lacking. The large turning angle of the turbine blade is the first major factor deserving special attention. ...
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Guoqiang Li, Qing Wang, Qijun Zhao, Guoqing Zhao, Fei Feng and Linxin Wu
The environment for the shipboard landing and takeoff of helicopters is extremely complex and significantly affects their safe flight. To address the intricate characteristics of the flow field during these operations, a simulation method suitable for ro...
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Yonggang Mei, Rong Mo, Huibin Sun, Bingbing He and Kun Bu
Cutting chatter is extremely harmful to the machining process, and it is of great significance to eliminate chatter through analyzing the stability of the machining process. In this work, the stability of the milling process with multiple delays is inves...
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Jairo Andrés Gutiérrez Suárez, Carlos Humberto Galeano Urueña and Alexánder Gómez Mejía
The use of adaptive meshing strategies to perform cost-effective transient simulations of spray drying processes is evaluated. These simulations are often computationally expensive, given the large differences between the characteristic times of the cent...
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Hongming Cai, Zhuoran Zhang, Ziqi Li and Hongda Li
Cavity flows are a prevalent phenomenon in aerospace engineering, known for their intricate structures and substantial pressure fluctuations arising from interactions among vortices. The primary objective of this research is to predict noise levels in hi...
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Yihan Xing, Marek Jan Janocha, Guang Yin and Muk Chen Ong
The Subsea Shuttle Tanker (SST) was proposed by Equinor as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) from existing offshore/land facilities to marginal subsea fields. In contrast to highl...
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