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Hannes Zöschg
Trash racks installed at hydropower plants cause head losses that reduce energy output. Previous research has thoroughly investigated head losses through both experimental and field studies. However, only a limited number of numerical studies have been p...
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Arvid Åkerblom, Martin Passad, Alessandro Ercole, Niklas Zettervall, Elna J. K. Nilsson and Christer Fureby
With growing interest in sustainable civil supersonic and hypersonic aviation, there is a need to model the combustion of alternative, sustainable jet fuels. This work presents numerical simulations of several related phenomena, including laminar flames,...
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Shiyan Lin, Ruiyu Li, Limin Gao and Ning Ge
The accurate prediction of tip leakage flow is the premise for flow mechanism analysis and compressor performance optimization. The detached eddy simulation (DES) method, which compromises cost and accuracy, has excellent potential for a high Reynolds fl...
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Omkar Walvekar and Satyanarayanan Chakravarthy
A conceptual framework is presented to determine the improvement in the aerodynamic performance of a canard aircraft fitted with distributed propellers along its main wing. A preliminary study is described with four airframe?propeller configurations pred...
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Chong Yan, Yibing Xu, Ruizhe Cao and Ying Piao
The very large eddy simulation (VLES) method was investigated for supersonic reacting flows in the present work. The advantages and characteristics of the VLES model and the widely used improved delayed detached eddy simulation (IDDES) method were reveal...
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Simon Joßberger and Stefan Riedelbauch
Double-regulated Kaplan turbines with adjustable guide vanes and runner blades offer a high degree of flexibility and good efficiency for a wide range of operating points. However, this also leads to a complex geometry and flow guidance with, for example...
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Mohan Kumar Gajendran, Ijaz Fazil Syed Ahmed Kabir, Sudhakar Vadivelu and E. Y. K. Ng
As wind energy continues to be a crucial part of sustainable power generation, the need for precise and efficient modeling of wind turbines, especially under yawed conditions, becomes increasingly significant. Addressing this, the current study introduce...
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Mo Chen, Nan Zhang, Hailang Sun and Xuan Zhang
Aiming towards a better understanding of the flow field around a fully appended Joubert BB2 submarine model, and in order to complement the experimental investigations of the wake of the hydroplanes and sail, large eddy simulation (LES) with the dynamic ...
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Wenxiong Xi, Hui Xu, Tianyang Dong, Zhiyong Lin and Jian Liu
To improve the flame propagation, combustion stability, and uniformity of the temperature field, multi-position injection is applied in a dual-mode combustor by controlling heat release in different locations. Using the chemical reaction of the finite ra...
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Yin Wang, Ming Xu, Lingling Wang, Sha Shi, Chenhui Zhang, Xiaobin Wu, Hua Wang, Xiahui Xiong and Chunling Wang
In this study, a three-dimensional internal wave (IW)?cylinder?terrain coupled numerical model is established. Based on the large-eddy simulation (LES) method, the IW mechanical characteristics of the cylinder and the flow field evolution around the cyli...
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