Searched for: subject:"computational%5C+fluid%5C+dynamics"
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Liu, D. (author), Kenjeres, S. (author)
In the present study, we address the development and application of an efficient tool for conversion of results obtained by an integrated computational fluid dynamics (CFD) and computational reaction dynamics (CRD) approach and their visualization in the Google Earth. We focus on results typical for environmental fluid mechanics studies at a...
journal article 2017
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van der Kolk, N.J. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author)
A Reynolds-Averaged Navier Stokes computational fluid dynamics (RANS-CFD) package will be one of the primary tools used during the development of a performance prediction program for Wind-Assisted commercial ships. The modelling challenge presented by large separated flow structures in the wake of the sailing ship points to a conscientious...
conference paper 2017
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Abbasi, A. (author)
This research aims at developing a flexible and efficient (numerical) approach for estimating energy balance and heat storage of small shallow lakes in arid and semi-arid regions. To reach to this aim, some numerical methods and improvements in conventional methods were done. Optimizing the methods developed in this thesis is considered in order...
doctoral thesis 2016
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Janssen, S.R. (author)
Double degree. Supervision of the thesis also at: Faculty Applied Mathematics, Department Numerical Analysis, Programme M.Sc. Applied Mathematics. Structure-preserving discretization techniques preserve fundamental structure of operators and operands found in partial differential equations. Classical discretization techniques sometimes neglect...
master thesis 2016
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Kevelam, M.D.J. (author)
In the offshore industry rock is used for different kind of applications, such as scour protection and pipeline protection. In deep water operations, but also increasingly in shallow water operations, use is made of the method by guiding the rock from the water surface to the seabed with a fallpipe. During a rock placement operation a current...
master thesis 2016
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Derksen, G.A.D. (author)
Royal IHC is exploring the possibilities of a subsea separation concept for its deep sea mining concept. The most promising concept from literature was the crossflow separator, this separation concept was further researched. This to have a look at the performance of such a crossflow separator and to find out what geometry is most suitable for...
master thesis 2016
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Stam, C.J. (author)
Vortex generators (VGs) are effectively used to improve the performance of the wind turbine blades by means of flow control. VGs can be represented by local geometrical disturbance on the aerodynamic surfaces. This disturbance generates vortices in the streamwise direction, energizing the boundary layer and hence delaying or suppressing the flow...
master thesis 2016
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Derakhshani, S.M. (author)
Dust has negative effects on the environmental conditions, human health as well as industrial equipment and processes. In this thesis, the transfer point of a belt conveyor as a bulk material handling system with a very high potential place for dust liberation is studied. This study is conducted based on experimental and numerical methods as...
doctoral thesis 2016
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Rotteveel, E. (author), van der Ploeg, A (author), Hekkenberg, R.G. (author)
Shallow water effects change the flow around a ship significantly which can affect the optimum design of the hull. This paper describes a study into the optimization of the aft ship region for various water depths. The research focuses on variations of the following parameters of a hull form: The athwart ship’s propeller location, the tunnel top...
conference paper 2016
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Viré, A.C. (author), Spinneken, J (author), Piggott, MD (author), Pain, CC (author), Kramer, SC (author)
This study aims at demonstrating the capability of the immersed-body method to simulate wave–structure interactions using a non-linear finite-element model. In this approach, the Navier–Stokes equations are solved on an extended mesh covering the whole computational domain (i.e. fluids and structure). The structure is identified on the extended...
journal article 2016
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Rotte, G.M. (author), Zverkhovskyi, Oleksandr (author), Kerkvliet, Maarten (author), van Terwisga, T.J.C. (author)
Air lubrication techniques are very promising in reducing ship drag. It has been demonstrated that air cavity applications can realise propulsive power reduction percentages of 10-20% due to the reduction of the frictional resistance [1, 2]. However, a complete understanding of the two-phase flow physics involved with air cavity flows is still...
conference paper 2016
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Bordogna, G. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), Fossati, Fabio Vittorio (author), Belloli, Marco (author)
In recent years wind-assisted propulsion for commercial ships has gained an increasing interest as valuable alternative to reduce fuel pollutant emissions. However, the development of feasible and commercially viable wind propulsion systems to partially (or fully) propel a ship is nowadays hindered by the difficulties of modelling the...
conference paper 2016
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Chang, X. (author), Akkerman, I. (author), Huijsmans, R.H.M. (author), Veldman, A.E.P. (author)
The CFD simulation tool ComFLOW is extended to investigate the characteristics of wave motions in the presence of steady uniform currents. Initially, the inflow boundary is the superposition of waves and current. Effect of the latter on the former is resolved by solving Navier-Stokes equations within the domain as a next step. A Generating and...
conference paper 2016
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van den Bos, L.M.M. (author), Koren, B (author), Dwight, R.P. (author)
The problem of non-intrusive uncertainty quantification is studied, with a focus on two computational fluid dynamics cases. A collocation method using quadrature or cubature rules is applied, where the simulations are selected deterministically. A one-dimensional quadrature rule is proposed which is nested, symmetric, and has positive weights....
conference paper 2016
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Liu, J. (author), Hekkenberg, R.G. (author)
In order to reach the required manoeuvrability, inland vessels often use twin rudders, but the interaction effects are poorly understood. To achieve a proper configuration, this paper applies 2D RANS simulations to analyse the interaction effects on the twin-rudder hydrodynamics. Various twin-rudder configurations with different profiles and...
conference paper 2016
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Lancelot, P.M.G.J. (author), Sodja, J. (author), Werter, N.P.M. (author), De Breuker, R. (author)
This paper summarises the design of a gust generator and the comparison between high fidelity numerical results and experimental results. The gust generator has been designed for a low subsonic wind tunnel in order to perform gust response experiments on wings and assess load alleviation. Special attention has been given to the different design...
conference paper 2015
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De Jong, R.H. (author)
Fuel efficiency is an important factor for the shipping industry both regarding new build vessels and existing vessels. A method to reduce the fuel consumption of existing vessels operating in off design conditions is to trim a vessel in the most optimum trim condition. The current approach to determine the most efficient trim condition is to...
master thesis 2015
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Kadar, A.H. (author)
Measuring the temperature distribution inside the rotary kilns, using thermocouples for instance has proven to be difficult due to the harsh operating conditions of the kiln. Numerical modelling of turbulent combustion and the associated physical phenomenon thus proves to be an indispensable tool towards predicting the kiln operating conditions....
master thesis 2015
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Valk, M.N.B. (author)
The Technical University Delft has great ambitions for the future. Becoming a well-known university in the world is one of them. Therefore the TU Delft should reconsider the impression that they carry out of the TU Delft Campus. My site is located in the center of the campus, where the 80 -meter-high faculty of EWI (electronis, math and...
master thesis 2015
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Rotteveel, E. (author), Hekkenberg, R.G. (author)
Effects of a hull form variation and shallow water on a 110-meter inland ship are presented as preliminary results of the Top Ships project, which is initiated in order to improve inland ship design tools and design guidelines.
conference paper 2015
Searched for: subject:"computational%5C+fluid%5C+dynamics"
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