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Zhou, Z. (author), Ge, Jianzhong (author), van Maren, D.S. (author), Gu, Jinghua (author), Ding, Pingxing (author), Wang, Zhengbing (author)The Krone–Partheniades (K-P) framework has been used for decades to quantify and analyze the sediment exchange at a water–bed interface. Measuring the erosion and deposition parameters that are part of this framework requires time-consuming field observations. Additionally, the erosion parameters are measured independently of deposition...journal article 2022
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Hopkins, J.A. (author), de Schipper, M.A. (author), Wengrove, M.E. (author), Castelle, Bruno (author)Observations from wave basin experiments and wave-resolving numerical simulations demonstrate the effect of wave-current interaction on shear stress around a sandy mound. Observations from the wave basin show that the mound deformation rate and morphological patterns depend on the mixture of waves and currents in the incident flow conditions....journal article 2022
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Moerman, A. M. (author), Korteland, S. (author), Dilba, K. (author), van Gaalen, K. (author), Poot, D. H.J. (author), van Der Lugt, A. (author), Verhagen, H. J.M. (author), Wentzel, J. J. (author), van Der Steen, A. F.W. (author), Gijsen, F.J.H. (author), Van der Heiden, K. (author)The role of wall shear stress (WSS) in atherosclerotic plaque development is evident, but the relation between WSS and plaque composition in advanced atherosclerosis, potentially resulting in plaque destabilization, is a topic of discussion. Using our previously developed image registration pipeline, we investigated the relation between two...journal article 2022
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Yao, Peng (author), Su, Min (author), Wang, Zhengbing (author), van Rijn, Leo C. (author), Stive, M.J.F. (author), Xu, Chunyang (author), Chen, Yongping (author)The erosion threshold, beyond which bed sediments start to move, is a key parameter describing sediment transport processes. For silt-dominated mixtures, in which the grain size is between sand and clay, existing experimental studies exhibit contradictory observations. That is, the erosion was either sand-like or clay-like, suggesting...journal article 2022
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Wilgenburg, Gert (author)Torsional moments and shear stresses are not calculated correctly in the framework analysis software SCIA Engineer for cross-sections with a shear centre eccentricity. The aim of this research is to analyze and solve this problem.bachelor thesis 2021
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El Hasnaoui, Nabil (author)Cleaning is an important factor in the reprocessing of hollow medical instruments. Inadequate cleaning disturbs the disinfection and sterilization process and increases the risk of cross-contamination. An automated washer-disinfector is often used for cleaning medical instruments, by using fluid flow. fluid flow induces shear stress at the wall...master thesis 2021
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Perinajová, R. (author), Juffermans, Joe F. (author), Westenberg, Jos J.M. (author), van der Palen, Roel L.F. (author), van den Boogaard, Pieter J. (author), Lamb, Hildo J. (author), Kenjeres, S. (author)Aortic aneurysm is associated with aberrant blood flow and wall shear stress (WSS). This can be studied by coupling magnetic resonance imaging (MRI) with computational fluid dynamics (CFD). For patient-specific simulations, extra attention should be given to the variation in segmentation of the MRI data-set and its effect on WSS. We performed...journal article 2021
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Ge, Baoyun (author), Liua, Mingda (author), Dong, J. (author), Liu, Wenbo (author)In view of the increasing demand in torque density, this article propounds the idea of looking for an upper bound of the torque production and average shear stress for surface permanent magnet (SPM) synchronous machines. The derivation is based on the assumption of an infinite permeability of the iron core and employs the transfer relation...journal article 2021
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Wu, X. (author), Gurzing, S.D. (author), Schinkel, C.V. (author), Toussaint, Merel (author), Perinajová, R. (author), van Ooij, Pim (author), Kenjeres, S. (author)Introduction: Wall shear stress (WSS) is associated with the growth and rupture of an intracranial aneurysm. To reveal their underlying connections, many image-based computational fluid dynamics (CFD) studies have been conducted. However, the methodological validations using both in vivo medical imaging and in vitro optical flow measurements...journal article 2021
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van der Meer, Gerben (author)Hydrodynamic bearings can be used to minimise friction, and their load capacity can be improved by texturing the bearing surfaces. However, due to mechanical contact between the surfaces during start and stop, these textures are susceptible to wear. Previously, a new method of creating textures using magnetorheological fluids as lubricant was...master thesis 2020
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Gavriilidis, Prodromos (author)Introduction: Atherosclerosis, the major source of cardiovascular diseases, is one of the leading causes of death. During atherosclerosis the arterial wall is affected by a complex process of lipid driven inflammation that leads to thickening of the arterial wall resulting in a so called plaque. Because of plaque growth, the lumen of the artery...master thesis 2020
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Henriquez, M. (author)This thesis is about the hydrodynamic processes that occur when a nearshore sandbar migrates towards the shore driven by the waves. These processes are relevant because process-based morphological models have difficulty simulating coastal accretion events in contrast to erosion events. Simulating accretion events is important for engineering...doctoral thesis 2019
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Korevaar, Iris (author)Worldwide 8-16% of the people are affected by chronic kidney disease (CKD). If the CKD is undetected, people have the risk to develop progressive loss of kidney function, which can lead to kidney failure. People with kidney failure will need dialysis to take over the kidney function. For the hemodialysis a vascular access is needed, currently...master thesis 2019
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Yagisawa, Junji (author), van Damme, M. (author), Pol, J.C. (author), Bricker, J.D. (author)Apart from the soil erodibility parameter, the critical shear stress is the most important parameter in predicting erosion rates. On the basis of experiments several empirical formulas have already been de-veloped which relate the critical shear stress to soil properties. Based on these findings and supported by new large scale experiments, a...conference paper 2019
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Estimating the roughness of muddy beds: A study based on in-site measurements and numerical modelingSpeerstra, Han (author)Bed roughness is an important parameter for the prediction of sediment transport as well as calculating flow conditions near the bed. Numerical models are extensively used to make these predictions. In these models it is fundamental to have proper values for bed roughness. The bed roughness is being estimated using a dataset from an ongoing...master thesis 2018
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Bregman, Martijn (author)This thesis presents a new methodology for representing the effect of spiral flow on the bed shear stress magnitude and direction, using a low-vertical-resolution three-dimensional model. Furthermore, it discusses the performance of the new methodology in comparison with conventional high-vertical-resolution three-dimensional and depth-averaged...master thesis 2018
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Bomers, A. (author), Aguilar Lopez, J.P. (author), Warmink, JJ (author), Hulscher, Suzanne J.M.H. (author)Structures integrated in a grass-covered dike may increase erosion development. Currently, safety assessment methods for flood defences are only applicable for a conventional grass-covered dike and the effects of structures on dike cover erosion are poorly understood. Since many dikes have a road on top, it is important to study the effect of...journal article 2018
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Riteco, J. (author)A new flood risk approach for design and testing of primary and secondary flood defence structures in the Netherlands relies on the probability of loss of the water retaining capacity. Determining this probability for levees requires a better understanding of consequences of extreme conditions leading to failure, starting with a study of soil....master thesis 2017
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Mathew, R. (author), Winterwerp, J.C. (author)Numerical models of fine sediment transport depend on different approaches to parameterize the erosion properties of surficial sediment strata. These properties, namely the critical shear stress for erosion and the erosion rate coefficient, are crucial for reproducing the short-term and long-term sediment dynamics of the system. Methods to...journal article 2017
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Lantsoght, E.O.L. (author), de Boer, A. (author), van der Veen, C. (author)Existing reinforced concrete solid slab bridges in the Netherlands are re-assessed for shear based on a Unity Check: the ratio of the shear stress caused by the applied loads to the shear capacity of the concrete cross-section. The governing shear stress resulting from the self-weight, weight of the wearing surface, distributed and concentrated...journal article 2017