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O. N. Kornelyuk
Pág. 74 - 81
Purpose. The article is aimed to: generate 3D models of the screw-propellers under study, as well as the calculation box; carry out a series of numerical experiments to verify the obtained results with the corresponding results of the model experiments; ...
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Y. M. Korol,O. M. Kornelyuk
Pág. 80 - 88
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Maksym Vozniuk,Eugene Pis?mennyi,Alexandr Terekh,Alexandr Baranyuk,Vadym Kondratyuk
Pág. 74 - 79
The expediency of using "dry" cooling systems for technological products is considered. The expediency of using flat-oval tubes with incomplete finning as heat exchange surfaces of air coolers is shown. The transfer of the operating mode of air coolers t...
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Junliang Gao, Shukai Gong, Zhiwei He, Huabin Shi, Jun Zang, Tao Zou and Xu Bai
Fluid resonance may occur in a narrow gap between two side-by-side vessels under wave actions, which can cause significant wave height amplification inside the gap and further induce large wave loads and motion responses of the vessel. Based on an open-s...
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Zoltán Till, Bálint Molnár, Attila Egedy, Tamás Varga
Pág. 226 - 238
In this work, we focus on the most crucial units in a chemical technology, the chemical reactors. Using a commercially available CFD software package, COMSOL Multiphysics, 3D mathematical models of a batch reactor with different impeller geometries have ...
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Frank A. Plua, Francisco-Javier Sánchez-Romero, Victor Hidalgo, Petra Amparo López-Jiménez and Modesto Pérez-Sánchez
The selection of pumps as turbines (PATs) for their respective use in energy optimisation systems is a complicated task, because manufacturers do not provide the characteristic curves. For this reason, some research has been carried out to predict them w...
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Àlex Navó and Josep M. Bergada
A 2D aerodynamic study of the NASA?s X-43A hypersonic aircraft is developed using two different approaches. The first one is analytical and based on the resolution of the oblique shock wave and Prandtl?Meyer expansion wave theories supported by an in-hou...
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Adrian Lungu
The scale effect on the accuracy of a numerical simulation in ship hydrodynamics represents an important issue of the propeller numerical analysis. To grasp a better understanding on the influence of this effect, an introspection on the performances of a...
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Ehsan Askari, Pierre Proulx and Alberto Passalacqua
In order to optimize and design new bubbly flow reactors, it is necessary to predict the bubble behavior and properties with respect to the time and location. In gas-liquid flows, it is easily observed that the bubble sizes may vary widely. The bubble si...
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Yavuz Yaman, Ilhan Ozan Tunçöz, Yosheph Yang, Pinar Arslan, Ugur Kalkan, Harun Tiras, Ercan Gürses, Melin Sahin and Serkan Özgen
The idea of morphing is drawing extensive attention in aerospace technologies. Several different approaches like span, camber, twist, and sweep are finding applications. In this work, the concept of a trailing edge control surface which is capable of per...
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