Searched for: subject%3A%22streamline%22
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document
Langeveld, Bram (author)
Groynes are hydraulic structures commonly applied in the Dutch rivers. Depending on the water depth, groynes can be emerged or submerged. When a groyne is emerged, it has two main functions: maintaining the water depth in the main channel and preventing the river from eroding its bank. When the discharge in the river increases, the groynes...
master thesis 2023
document
Kislaya, A. (author)
The precise manipulation of particles and droplets is crucial to many microfluidic applications in engineering. The design of microfluidic devices is generally tailored to perform a specific task, with each specific application requiring a unique and fixed design. In this way, using a single device to perform multiple analyses of a wide range of...
doctoral thesis 2022
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Steenman, Yannick (author)
Shallow jet flows are often coupled to high flow velocities and complex flow patterns. To properly ensure the stability of the barrier between both water bodies surrounding the jet, a scour analysis is often a necessity. Such analyses are inevitably coupled to the hydrodynamic processes occurring in jet flows, either in the form of loads on...
master thesis 2020
document
Ahmad Mohammad Tahir, Ahmad (author)
The hot water produced from a geothermal doublet possesses energy, which once utilized, the water cools down and is re-introduced back into the same reservoir at a sufficient distance using an injector well. As cold water flows through the reservoir, it acquires thermal energy from surrounding in-situ rocks. This process recurs until a...
master thesis 2019
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Kislaya, A. (author), Deka, Antaran (author), Veenstra, Peter (author), Tam, D.S.W. (author), Westerweel, J. (author)
In micro-PIV, reaching the optimum image density has always been difficult due to high displacement gradient, coagulation of particles at the inlet and due to particles adhering to the surface to name a few. The most widely used method is to take ensemble correlation average of multiple PIV images to extract the velocity field. However, this...
conference paper 2018
document
Bruinsma, M.C. (author)
The Master’s programme Industrial Ecology is jointly organised by Leiden University and Delft University of Technology.
master thesis 2016
document
Schaap, T. (author)
In this master thesis the flow behavior and the performance of a bow tunnel thruster at slow forward vessel motion is studied using Computational Fluid Dynamics (CFD). The study analyzes the flow and the turning ability for a cylindrical cross-section and the effect of changing the cross-section of the bow tunnel thruster. At Royal IHC it is...
master thesis 2015
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Van El, W.A. (author)
“Dispersion” has two meanings in reservoir engineering: (1) the variety of arrival times at a production well for an injected tracer, which is mostly a function of heterogeneity of permeability in the reservoir, and (2) mixing of injected fluids in situ. It is very difficult to distinguish these two processes in situ, while the success of...
master thesis 2015
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Spruit, R.M. (author)
The objective of this study is to determine for which conditions the bypass capacity is optimized in combination with a limited influence on the navigational function of the harbour. The bypass capacity is defined as the capacity to bypass the sediment around the harbour under the presence of the defined driving forces (i.e. waves and/or tide)....
master thesis 2013
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Walfisch, D. (author), Ryan, J.K. (author), Kirby, R.M. (author), Haimes, R. (author)
The discontinuous Galerkin (DG) method continues to maintain heightened levels of interest within the simulation community because of the discretization flexibility it provides. One of the fundamental properties of the DG methodology and arguably its most powerful property is the ability to combine high-order discretizations on an inter-element...
journal article 2008
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Zhao, L. (author), Botha, C.P. (author), Truyen, R. (author), Vos, F.M. (author), Post, F.H. (author)
Many computer aided diagnosis (CAD) schemes have been developed for colon cancer detection using Virtual Colonoscopy (VC). In earlier work, we developed an automatic polyp detection method integrating flow visualization techniques, that forms part of the CAD functionality of an existing Virtual Colonoscopy pipeline. Curvature streamlines were...
conference paper 2008
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Hemker, K. (author), Bakker, M. (author)
Analytical solutions are derived for steady state groundwater flow in a heterogeneous, anisotropic, semiconfined aquifer. The aquifer consists of a number of horizontal layers, while each layer consists of a number of homogeneous cells with different hydraulic conductivity tensors. An exact solution for an arbitrary number of layers and cells is...
journal article 2006
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Ham, D.A. (author), Pietrzak, J. (author), Stelling, G.S. (author)
A new scheme for the construction on an unstructured grid of the streamlines of the three-dimensional shallow water equations is presented. The qualitative advantages of the scheme, notably closed streamlines and realistic treatment of closed boundaries, are derived and the spatial accuracy is demonstrated. Semi-Lagrangian advection schemes...
journal article 2005
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De Vriend, H.J. (author)
The relationship between streamline curvature and bed resistance in shallow water flow with little side constraint, as derived in 1970 by H.J. Schoemaker, is reconsidered. Schoemaker concluded that the bed resistance causes the curvature of a free streamline to grow exponentially with the distance along this streamline, thus giving rise to a...
report 1979
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