- document
-
Li, H. (author), Pourquie, M.J.B.M. (author), Ooms, G. (author), Henkes, R.A.W.M. (author)DNS and RANS simulations were carried out for core-annular flow in a horizontal pipe and results were compared with experiments carried out with water and oil in our lab. In contrast to most existing studies for core-annular flow available in the literature, the flow annulus is not laminar but turbulent. This makes the simulations more...journal article 2024
- document
-
Ooms, Simone (author), Röggla, Thomas (author), Cesar, Pablo (author), El Ali, Abdallah (author)Within our Distributed and Interactive Systems research group, we focus on affective haptics, where we design and develop systems that can enhance human emotional states through the sense of touch. Such artificial haptic sensations can potentially augment and enhance our mind, body, and (virtual) social connections. In three works—voice...journal article 2024
- document
-
Situm, Arthur (author), Bahadormanesh, Behrouz (author), Bannenberg, L.J. (author), Ooms, F.G.B. (author), Feltham, Hunter A. (author), Popov, German (author), Behazin, Mehran (author), Goncharova, Lyudmila V. (author), Noël, James J. (author)One concern regarding the used nuclear fuel containers proposed for use in a Canadian deep geological repository (DGR) is the possibility that a small amount of hydrogen might be absorbed into their copper coating, potentially altering its mechanical properties. Reported herein is a study of hydrogen absorption into 50 nm of copper, coated on...journal article 2023
- document
-
Li, H. (author), Pourquie, M.J.B.M. (author), Ooms, G. (author), Henkes, R.A.W.M. (author)The Reynolds-Averaged Navier Stokes (RANS) with the Launder & Sharma low-Reynolds number k−ε model was used to simulate core-annular flow in the same configuration with vertical upflow as considered by Kim & Choi (2018), who carried out Direct Numerical Simulations (DNS), and by Vanegas Prada (1999), who performed experiments. The DNS...journal article 2023
- document
-
Puladi, Behrus (author), Ooms, Mark (author), Geijtenbeek, T. (author), Trinler, Ursula (author), Houschyar, Khosrow Siamak (author), Gruber, Lennart Johannes (author), Motmaen, Ila (author), Rashad, Ashkan (author), Hölzle, Frank (author), Modabber, Ali (author)The myocutaneous anterolateral thigh (ALT) and vastus lateralis (VL) flaps include a large muscle mass and a sufficient vascular pedicle, and they have been used for decades to reconstruct traumatic and acquired defects of the head and neck and extremities. In spite of these benefits, musculoskeletal dysfunction was reported in nearly 1 out...journal article 2023
- document
-
Ooms, Simone (author), Lee, Minha (author), Cesar, Pablo (author), El Ali, Abdallah (author)Emotion plays a key role in the emerging wave of immersive, multi-sensory audience news engagement experiences. Since emotions can be triggered by somatosensory feedback, in this work we explore how augmenting news video watching with haptics can influence affective perceptions of news. Using a mixed-methods approach, we design and evaluate...conference paper 2023
- document
-
Ooms, G. (author), Pourquie, M.J.B.M. (author), Tam, D.S.W. (author)A three-dimensional (3D) numerical simulation was performed using a combined stroke swimmer (deformable sphere) in an incompressible fluid of an infinite domain. The time-dependent deformation of the swimmer surface was assumed independent of the circumferential cross section in the flow direction of the swimmer. The 3D numerical simulation...journal article 2022
- document
-
Li, H. (author), Pourquie, M.J.B.M. (author), Ooms, G. (author), Henkes, R.A.W.M. (author)Interfacial waves in core-annular pipe flow are studied through two-phase numerical simulations. Here the water annulus is turbulent, whereas the oil core stays laminar. The low-Reynolds number Launder & Sharma k−ε model is applied. By extracting the moving wave shape from the two-phase results and imposing this as a solid boundary in a...journal article 2022
- document
-
Li, H. (author), Pourquie, M.J.B.M. (author), Ooms, G. (author), Henkes, R.A.W.M. (author)1D, 2D and 3D numerical simulations were carried out with the Reynolds-Averaged Navier-Stokes equations (RANS) for horizontal oil-water core-annular flow in which the oil core stays laminar while the water layer is turbulent. The turbulence is described with the Launder-Sharma low-Reynolds number k−ϵ model. The simulation results are compared...journal article 2021
- document
-
Jiang, J. (author), Li, H. (author), Pourquie, M.J.B.M. (author), Ooms, G. (author), Henkes, R.A.W.M. (author)Core-annular flow is an efficient way of transporting viscous oil through a pipeline. A sharp increase in the pressure drop will occur when the oil waves at the water-oil interface touch the pipe wall. Depending on the oil and pipe material physical properties, the oil may adhere to the wall leading to fouling. Therefore, a necessary...journal article 2021
- document
-
Wang, C. (author), Liu, M. (author), Thijs, M.A. (author), Ooms, F.G.B. (author), Ganapathy, S. (author), Wagemaker, M. (author)Li metal batteries are being intensively investigated as a means to achieve higher energy density when compared with standard Li-ion batteries. However, the formation of dendritic and mossy Li metal microstructures at the negative electrode during stripping/plating cycles causes electrolyte decomposition and the formation of electronically...journal article 2021
- document
-
Basak, S. (author), Migunov, Vadim (author), Lee, Q. (author), Ganapathy, S. (author), Vijay, Ashwin (author), Ooms, F.G.B. (author), Wagemaker, M. (author), Kelder, E.M. (author), Arszelewska, Violetta (author)With operando transmission electron microscopy visualizing the solid-solid electrode-electrolyte interface of silicon active particles and lithium oxide solid electrolyte as a model system, we show that (de)lithiation (battery cycling) does not require all particles to be in direct contact with electrolytes across length scales of a few...journal article 2020
- document
-
Wang, Qidi (author), Yao, Zhenpeng (author), Zhao, Chenglong (author), Verhallen, T.W. (author), Tabor, Daniel P. (author), Liu, M. (author), Ooms, F.G.B. (author), Kang, Feiyu (author), Wagemaker, M. (author)Metallic lithium is a promising anode to increase the energy density of rechargeable lithium batteries. Despite extensive efforts, detrimental reactivity of lithium metal with electrolytes and uncontrolled dendrite growth remain challenging interconnected issues hindering highly reversible Li-metal batteries. Herein, we report a rationally...journal article 2020
- document
-
Werker, C. (author), Ooms, Ward (author)Prior analyses of face-to-face contacts in collaborations have focused on one substitute only. Instead, we analyse various potential substitutes for face-to-face contacts in collaborations. Based on 45 interviews with academics from five leading European universities of technology our findings show that face-to-face contacts are closely...journal article 2019
- document
-
van Hulzen, M. (author), Ooms, F.G.B. (author), Wright, Jonathan P. (author), Wagemaker, M. (author)For the development of next-generation batteries it is important to understand the structural changes in electrodes under realistic non-equilibrium conditions. With microbeam X-ray diffraction it is possible to probe many individual electrode grains concurrently under non-equilibrium conditions in realistic battery systems. This makes it...journal article 2018
- document
-
Lv, Shasha (author), Verhallen, T.W. (author), Vasileiadis, A. (author), Ooms, F.G.B. (author), Xu, Y. (author), Li, Z. (author), Li, Zhengcao (author), Wagemaker, M. (author)Electrical mobility demands an increase of battery energy density beyond current lithium-ion technology. A crucial bottleneck is the development of safe and reversible lithium-metal anodes, which is challenged by short circuits caused by lithium-metal dendrites and a short cycle life owing to the reactivity with electrolytes. The evolution of...journal article 2018
- document
-
Ooms, Ward (author), Werker, C. (author), Caniëls, Marjolein (author)The proximity framework serves to analyse and understand how collaborations form and develop over time, and how these affect innovation and learning. The framework has inspired and informed empirical studies in several contexts, contributing to our understanding of the dynamics of dyadic collaborations, industrial clusters and districts, and...journal article 2018
- document
-
van Duin, Erik (author), Henkes, R.A.W.M. (author), Ooms, G. (author)An experimental study has been made of oil-water core-annular flow in a horizontal pipe with special attention for the influence of the oil viscosity on the pressure drop. For that purpose a heating system has been installed and configured that is able to control the oil temperature, such that the oil viscosity could be varied between 3000 cSt...journal article 2018
- document
-
Ooms, Ward (author), Werker, C. (author), Hopp, Christian (author)We look into the question whether heterogeneity stemming from research orientation, gender, or disciplinary and cultural differences with their PhD supervisors helps or hampers academics’ careers. Based on a sample of 248 academics at two leading European universities of technology, we combine multinomial logit models and sequential logit...journal article 2018
- document
-
Mulder, F.M. (author), Weninger, B. (author), Middelkoop, J. (author), Ooms, F.G.B. (author), Schreuders, H. (author)Grid scale electricity storage on daily and seasonal time scales is required to accommodate increasing amounts of renewable electricity from wind and solar power. We have developed for the first time an integrated battery-electrolyser ('battolyser') that efficiently stores electricity as a nickel-iron battery and can split water into hydrogen...journal article 2017