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Matteo Dellacasagrande, Davide Lengani, Daniele Simoni and Marina Ubaldi
The bursting phenomenon consists in the switch of a laminar separation bubble from a short to a long configuration. In the former case, reduced effects on profile pressure distribution are typically observed with respect to the attached condition. On the...
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Daniel Martinez-Sanchis, Andrej Sternin, Oskar Haidn and Martin Tajmar
Direct numerical simulations of non-premixed fuel-rich methane?oxygen flames at 20 bar are conducted to investigate the turbulent mixing burning of gaseous propellants in rocket engines. The reacting flow is simulated by using an EBI-DNS solver within an...
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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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Kalyani Bhide and Shaaban Abdallah
Turbulence is governed by various mechanisms, such as production, dissipation, diffusion, dilatation and convection, which lead to its evolution and decay. In high-speed flows, turbulence becomes complicated due to compressibility effects. Therefore, the...
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Anurag Sharma, Bimlesh Kumar and Giuseppe Oliveto
This work experimentally investigates the turbulent flow characteristics of developing and fully-developed flows over a rough bed channel that is subjected to downward seepage. Instantaneous 3D velocities were collected using an acoustic Doppler velocime...
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Katsuhiro Sekine, Furuto Kato, Kota Kageyama and Eri Itoh
Although the application of new wake turbulence categories, the so-called ?RECAT (wake turbulence category re-categorization)?, will realize lower aircraft separation minima and directly increase runway throughput, the impacts of increasing arrival traff...
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Taiping Wang and Zhaoqing Yang
Cook Inlet in Alaska has been identified as a prime site in the U.S. for potential tidal energy development, because of its enormous tidal power potential that accounts for nearly one-third of the national total. As one important step to facilitate tidal...
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Theodore T. Kapsis, Nikolaos K. Lyras, Charilaos I. Kourogiorgas and Athanasios D. Panagopoulos
Next generation 5G networks generate a need for broadband, low latency and power efficient backhauling and data-relay services. In this paper, optical satellite communications links, as an integrated component of 5G networks, are studied. More specifical...
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Cheng Liu, Jianping Huang, Evgeni Fedorovich, Xiao-Ming Hu, Yongwei Wang and Xuhui Lee
Turbulence statistics and spectra in a radiatively heated convective boundary layer (CBL) under aerosol pollution conditions are less investigated than their counterparts in the clear CBL. In this study, a large-eddy simulation (LES) coupled with an aero...
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Mahdi Abkar
A large-eddy simulation (LES) study of vertical-axis wind turbine wakes under uniform inflow conditions is performed. Emphasis is placed on exploring the effects of subgrid-scale (SGS) modeling on turbine loading as well as on the formation and developme...
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