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In this talk we focus on the velocity fluctuations in highly turbulent Taylor-Couette flow for the case of stable flow (constant rotation) and for decaying flow. Turbulent flows are generally characterized by the range of scales of their fluctuations, and a statistical description of the flow is often done by calculating the correlations of...conference paper 2015
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In Taylor-Couette flow, the radius ratio ($\eta = r_i/r_o$) is one of the key parameters of the system. For small $\eta$, the asymmetry of the inner and outer boundary layer becomes more important, affecting the general flow structure and boundary layer characteristics. Using high-resolution particle image velocimetry we measure flow profiles...conference paper 2015
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We report experimental results on the Lagrangian dynamics of finite-size light particles in turbulence. Using an orthogonal camera setup and 3D particle tracking, we study the velocity and acceleration statistics of rigid light spheres in a water tunnel with nearly homogeneous and isotropic turbulence. The Reynolds number (ReY) is varied from...conference paper 2015
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We investigate the double diffusive convection between two parallel plates with either no-slip or free-slip boundary conditions. Direct numerical simulations have been conducted systematically for a series of control parameters. Salt fingers can be observed for both boundary conditions and all parameters explored. Compared to the no-slip case,...conference paper 2015
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Sun, Y. (author), Ditmar, P. (author), Riva, R. (author)A new methodology is proposed to estimate changes in the Earth’s dynamic oblateness (?J2 or equivalently, ?5??C20) on a monthly basis. The algorithm uses monthly Gravity Recovery and Climate Experiment (GRACE) gravity solutions, an ocean bottom pressure model and a glacial isostatic adjustment (GIA) model. The resulting time series agree...journal article 2015
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- Sun, S. (author) conference paper 2015
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Van Loon, F.D. (author), Pouderoijen, M.T. (author), Alberini, E. (author), Dijkstra, C.M. (author), Hagen, S.R. (author), De Jong, M. (author), Kiliço?lu, I.D. (author), Koukouvelou, A. (author), Mekel, M.L. (author), Schotting, K. (author), Shao, S. (author), Sun, X. (author), Terzi, O. (author), De Waal, W. (author), Van der Wal, I.A. (author), Zhang, B. (author)Booklet of the elective course AR0048 2014/2015 ‘Landscape Architecture ON site - being part of Oerol’, an elective course of the MSc2 - Chair of Landscape Architecture at the TU Delft.book 2015
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Sun, P. (author), Charbon, E. (author), Ishihara, R. (author)The first single-photon avalanche diode (SPAD) image sensor fully integrated on flexible substrate is reported. The design consists of an array of 1024 quenched pixels with CMOS readout and addressing circuitries. The flexible substrate was made compatible with sol-gel polymer, which will be used to imprint microlenses by quartz mold to improve...conference paper 2015
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- Liu, T (author), Sun, L. (author) journal article 2016
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Tol, H.J. (author), de Visser, C.C. (author), Sun, LG (author), van Kampen, E. (author), Chu, Q. P. (author)In this paper, a new modular adaptive control system is presented to compensate for aerodynamic uncertainties in high-performance flight control systems. This approach combines nonlinear dynamic inversion with multivariate spline-based adaptive control allocation. A new real-time identification routine for multivariate splines is presented to...journal article 2016
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Pan, W. (author), Sun, Yimin (author), Turrin, M. (author), Paul, J.C. (author)The integration of architectural (functional spaces) and structural design is especially crucial for the conceptual design of large multi-functional sports halls, due to the strict regulations for functional spaces, the requirement of large-span structure, and the complex interrelationships between these two aspects. This on-going research aims...conference paper 2016
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Sun, Junzi (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)With the increasing availability of ADS-B transponders on commercial aircraft, as well as the rapidly growing deployment of ground stations that provide public access to their data, accessing open aircraft flight data is becoming easier for researchers. Given the large number of operational aircraft, significant amounts of flight data can be...conference paper 2016
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Sun, Junzi (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Aircraft mass is an important parameter in many ways, either to build aircraft performance models, to predict flight trajectories, or to simulate air traffic. Mass data is usually considered as sensitive information for airlines and is, therefore, not disclosed to researchers publicly. In this paper, we use two methods to infer the mass of an...conference paper 2016
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Liu, Tao (author), Sun, L. (author)In 1999 the State Council of the People’s Republic of China (PRC) introduced the Regulation on the Minimum Living Standard Scheme (MLSS, or dibao) for urban residents in China. Policy learning from different parts of the world significantly shaped the formation and expansion of the MLSS, and Chinese social policy researchers have drawn...journal article 2016
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Turrin, M. (author), Yang, D. (author), D'Aquilio, A. (author), Sileryte, R. (author), Sun, Y (author)The design of sport buildings has great impact on top-sport as well as on recreational sport-activities. It implies challenging tasks in meeting the performance-requirements. This includes the control of factors like daylight/lighting, air flow, thermal conditions, just to name a few. Such factors impact the performance of athletes and are hard...journal article 2016
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Kleinherenbrink, M. (author), Riva, R.E.M. (author), Sun, Y. (author). In this study, for the first time, an attempt is made to close the sea level budget on a sub-basin scale in terms of trend and amplitude of the annual cycle. We also compare the residual time series after removing the trend, the semiannual and the annual signals. To obtain errors for altimetry and Argo, full variance–covariance matrices are...journal article 2016
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Wennersten, Ronald (author), Sun, Q (author), de Jong, W.M. (author)Great efforts have been made in China to reduce coal consumption over the last decade. However, the energy transition to more sustainable energy systems will be gradual and take a longer time than expected. This paper discusses how sustainable development of energy systems on the local level can be gradually achieved. A challenge will be to...journal article 2016
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Precision Recess of AlGaN/GaN with Controllable Etching Rate Using ICP-RIE Oxidation and Wet EtchingSokolovskij, R. (author), Sun, J. (author), Santagata, F. (author), Iervolino, E. (author), Li, S. (author), Zhang, G.Y. (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)A method for highly controllable etching of AlGaN/GaN for the fabrication of high sensitivity HEMT based sensors is developed. The process consists of cyclic oxidation of nitride with O<sub>2</sub> plasma using ICP-RIE etcher followed by wet etching of the oxidized layer. Previously reported cyclic oxidation-based GaN etching obtained very...journal article 2016
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Valero-Romero, M.J. (author), Sartipi, S. (author), Sun, X. (author), Rodríguez-Mirasol, J. (author), Cordero, T. (author), Kapteijn, F. (author), Gascon, J. (author)Mesoporous H-ZSM-5–carbon composites, prepared via tetrapropylammonium hydroxide (TPAOH) post treatment of H-ZSM-5 followed by deposition of pyrolytic carbon, have been used as the support for the preparation of Co-based Fischer–Tropsch catalysts. The resulting catalysts display an improved performance during Fischer–Tropsch synthesis (FTS),...journal article 2016
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Sun, F. (author)The ultimate objective of this work is to gain a better understanding of the plastic behavior of rough metal surfaces under contact loading. Attention in this thesis focuses on the study of single and multiple asperities with micrometer scale dimensions, a scale at which plasticity is known to be size dependent. The asperities have very simple...doctoral thesis 2016