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El Hasadi, Yousef M.F. (author), Padding, J.T. (author)At the beginning of the second half of the twentieth century, Proudman and Pearson (J. Fluid. Mech.,2(3), 1956, pp.237–262) suggested that the functional form of the drag coefficient (C<sub>D</sub>) of a single sphere subjected to uniform fluid flow consists of a series of logarithmic and power terms of the Reynolds number (Re). In this paper...journal article 2023
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Beikmirza, M.R. (author), Shen, Y. (author), de Vreede, L.C.N. (author), Alavi, S.M. (author)This article presents a wideband, energy-efficient digital transmitter (DTX) suitable for multi-mode/multi-band wireless communication applications. It features various operation modes comprising Cartesian (Modes-1/-2) and multi-phase (Modes-3/-4) configurations utilizing LO clocks with different duty cycle in the interleaving/non...journal article 2023
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HUA, YUAN (author)This thesis presents a 48V-to-1V 10-level dual inductor hybrid converter (DIHC) containing 11 on-chip switches and an off-chip Gallium Nitride (GaN) switch. Thanks to the 10-level Dickson switched-capacitor (SC) circuit, most of the voltage stress will be taken over by off-chip capacitors, which reduces the voltage stress of each switch to 4.8 V...master thesis 2022
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Pál, Botond (author), Roekaerts, D.J.E.M. (author), Zandbergen, B.T.C. (author)This study investigates the potential of a newly released multi-phase solver to simulate atomisation in an air-blast type atomiser. The 'VOF-to-DPM' solver was used to simulate primary and secondary atomisation in an atomiser with a coaxial injector-like geometry. The solver uses a hybrid Eulerian/Eulerian-Lagrangian formulation with...journal article 2021
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Abidi, Awatef (author), Ahmadi, Amir (author), Enayati, Mojtaba (author), Sajadi, S. Mohammad (author), Yarmand, H. (author), Ahmed, Arslan (author), Cheraghian, Goshtasp (author)In industrial processes, the microtechnology concept refers to the operation of small devices that integrate the elements of operational and reaction units to save energy and space. The advancement of knowledge in the field of microfluidics has resulted in fabricating devices with different applications in micro and nanoscales. Micro-and nano...review 2021
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Zhang, Cheng-lin (author), Chen, Wei-kang (author), Mu, Song (author), Šavija, B. (author), Liu, Qing-feng (author)Reinforced concrete (RC) structures may suffer from serious durability problems during long-term service. To investigate the deterioration of RC structures subjected to the dual attacks of chlorides and sulfates, this study proposes a coupled model for external sulfate attack (ESA) and its effect on chloride binding and diffusion. To account for...journal article 2021
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Liu, D. (author), Song, X. (author), Deng, Fujin (author), Dong, J. (author)High-Temperature superconducting (HTS) generators are being considered as a competitive candidate in large direct-drive (DD) wind turbines because of their features of being lightweight and compact. Normally a large air gap is inevitable in partially HTS generators, sacrificing the torque producing capability. In this paper, multi-phase...journal article 2020
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Pal, Botond (author)The conducted study investigates the potential of a newly released multi-phase solver to simulate atomization in liquid rocket injectors. The "VOF-to-DPM" solver was used to simulate primary and secondary atomization in an air-blast atomizer with a coaxial injector-like geometry. The solver uses a hybrid Eulerian/Eulerian-Lagrangian formulation...master thesis 2019
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Verbeek, Thijs (author)In the work of Den Ouden the level-set method has been used to model the growth and dissolution in a steel alloy of the precipitate cementite and the diffusive phase austenite. The movement of the interface between the two phases is controlled by the diffusion of carbon and a reaction on the interface between the two phases. In this thesis...master thesis 2018
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Torre, Francesco (author)Turbopumps are used in large-scale liquid rockets to inject the cryogenic propellants into the combustor. The turbopumps operate at high rotational speed, which in turn leads to cavitation at the inlet of the impeller. Cavitation can cause performance issues, instabilities and mechanical damage of the blades.<br/>This thesis presents and...master thesis 2018
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Santos, Emilie M M (author), D’Esterre, C. D. (author), Treurniet, Kilian M. (author), Niessen, W.J. (author), Abou Najm, M (author), Goyal, M. (author), Demchuk, A. M. (author), Majoie, C. B L M (author), Menon, B. K. (author), Marquering, Henk A. (author)Purpose: Thrombus perviousness has been associated with favorable functional outcome in acute ischemic stroke (AIS) patients. Measuring thrombus perviousness on CTA may be suboptimal due to potential delay in contrast agent arrival in occluded arteries at the moment of imaging. Dynamic sequences acquired over time can potentially overcome...journal article 2018
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Nazari Moghaddam, R. (author)This report concerns the addition of a new well control option ‘Flow Through Surface Choke’ (CHK) to AD-GPRS, the Automatic Differentiation General Purpose Research Simulator developed at Stanford University. The report provides background information on the modelling of fluid flow through surface chokes and gives details of the implementation...report 2017
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- Rotunno, A.F. (author), Callari, C. (author), Froiio, F. (author) conference paper 2017
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- Raees, F. (author) doctoral thesis 2016
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Madadi, I. (author)There are nowadays strong business and technical demands to integrate radio- frequency (RF) receivers (RX) into a complete system-on-chip (SoC) realized in scaled digital processes technology. As a consequence, the RF circuitry has to function well in face of reduced power supply ( V DD ) while the CMOS device threshold voltage ( V th ) stays...doctoral thesis 2015
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Tirumalasetty, G.K. (author), Van Huis, M.A. (author), Fang, C.M. (author), Xu, Q. (author), Tichelaar, F.D. (author), Hanlon, D.N. (author), Sietsma, J. (author), Zandbergen, H.W. (author)Multiphase steels utilising composite strengthening may be further strengthened via grain refinement or precipitation by the addition of microalloying elements. In this study a Nb microalloyed steel comprising martensite, bainite and retained austenite has been studied. By means of transmission electron microscopy (TEM), we have investigated the...journal article 2011
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Application of the numerical density-enthalpy method to the multi-phase flow through a porous mediumIbrahim, D. (author), Vermolen, F.J. (author), Vuik, C. (author)In this paper we apply a new method to solve multi-phase fluid flow problem for 1D1D and 2D2D fluid systems. This method is developed at TNO and presented in [1] for spatially homogeneous systems. We call this method the numerical density-enthalpy method (or ??-hh method) because density-enthalpy phase diagrams (or ??-hh diagrams) play an...journal article 2010
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Bakker, R. (author)With precise knowledge of the rules which govern a deterministic chaotic system, it is possible to interact with the system and change its dynamics. This research is part of a larger project, in which chaos control is used to improve the bubbling behavior of multi-phase chemical reactors. Chaos control requires models which capture the complete...doctoral thesis 2007
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Niu, Y.Y. (author), Lin, Y.C. (author)In this paper, a modification of pressure-velocity diffusion terms in AUSMDV is proposed to compute the compressible cavitated liquid-gas flows. As we know, cavitation phenomena are widely seen in multi-phase flow with different sizes of time and length scale. An accurate resolution of multi-scale phenomena such as material interfaces, contact...conference paper 2006