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Cozzoli, Francesco (author), Shokri, Milad (author), Gomes da Conceição, Tatiana (author), Herman, P.M.J. (author), Hu, Zhan (author), Soissons, Laura M. (author), Van Dalen, Jeroen (author), Ysebaert, Tom (author), Bouma, T.J. (author)Tidal flats are biogeomorphic landscapes, shaped by physical forces and interaction with benthic biota. We used a metabolic approach to assess the overarching effect of bioturbators on tidal landscapes. The benthic bivalve common cockle (Cerastoderma edule) was used as model organism. The effect of C. edule on sediment resuspension was...journal article 2021
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Tsouvalas, A. (author), Van Dalen, K.N. (author), Metrikine, A. (author)Modal decomposition is often applied in elastodynamics and acoustics for the solution of problems related to propagation of mechanical disturbances in waveguides. One of the key elements of this method is the solution of an eigenvalue problem for obtaining the roots of the dispersion equation, which signify the wavenumbers of the waves that may...journal article 2015
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Versteijlen, W.G. (author), De Oliveira Barbosa, J.M. (author), Van Dalen, K.N. (author), Metrikine, A. (author)The motivation for this work stems from the offshore wind industry, where designers are faced with a discrepancy between the available design methods and the typical dimensions of the offshore wind foundations that call for other design approaches. Throughout the years, much valuable work has been performed in the prediction of long, slender,...conference paper 2015
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Weemstra, C. (author), Wapenaar, C.P.A. (author), Van Dalen, K.N. (author)In this work we investigate a modification of the formulation of the theory underlying seismic interferometry (SI) by multidimensional deconvolution (MDD). The current formulation, and hence method, relies on separation of waves traveling inward and outward of a volume bounded by receivers. As a consequence, it is predominantly useful when...conference paper 2015
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Van Dalen, J.H. (author), Bosch, J.W. (author), Broere, W. (author)Flow processes, taking place during the concreting of diaphragm wall panels (D-wall panels), are of great importance for the quality of the wall. During this phase, the bentonite, present in the excavated trench, should be completely replaced by concrete in a controlled way. In literature several cases are described in which this process...conference paper 2015
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Flow processes, taking place during the concreting of diaphragm wall panels (D-wall panels), are of great importance for the quality of the wall. During this phase, the bentonite, present in the excavated trench, should be completely replaced by concrete in a controlled way. In literature several cases are described in which this process...conference paper 2015
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Broere, W. (author), Van Dalen, J. (author), Van der Schrier, J. (author)As part of the Dutch national research program GeoImpuls an inventory has been made of the state of the education at Dutch institutes of higher education and post-graduate education in so far as this education concerns geotechncial engineering and geotechnical risk management. Significant differences have been found in the amount of time...conference paper 2015
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Van Dalen, J.H. (author), Bosch, J.W. (author), Broere, W. (author)Flow processes, taking place during the concreting of diaphragm wall panels (D-wall panels), are of great importance for the quality of the wall. During this phase, the bentonite, present in the excavated trench, should be completely replaced by concrete in a controlled way. In literature several cases are described in which this process...conference paper 2015
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Broere, W. (author), Van Dalen, J. (author), Van der Schrier, J. (author)As part of the Dutch national research program GeoImpuls an inventory has been made of the state of the education at Dutch institutes of higher education and post-graduate education in so far as this education concerns geotechncial engineering and geotechnical risk management. Significant differences have been found in the amount of time...conference paper 2015
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Van Dalen, K.N. (author), Mikesell, T.D. (author), Ruigrok, E.N. (author), Wapenaar, C.P.A. (author)Retrieving virtual source surface waves from ambient seismic noise by cross correlation assumes, among others, that the noise field is equipartitioned and the medium is lossless. Violation of these assumptions reduces the accuracy of the retrieved waves. A point-spread function computed from the same ambient noise quantifies the associated...journal article 2015
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Kudarova, A. (author), Van Dalen, K.N. (author), Drijkoningen, G.G. (author)Several models are discussed for seismic wave propagation in periodically layered poroelastic media where layers represent mesoscopic-scale heterogeneities that are larger than the pore and grain sizes but smaller than the wavelength. The layers behave according to Biot’s theory. Wave propagation normal to the layering is considered and the...conference paper 2014
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Van der Male, P. (author), Van Dalen, K.N. (author), Metrikine, A. (author)In determining wind forces on wind turbine blades, and subsequently on the tower and the foundation, the blade response velocity cannot be neglected. This velocity alters the wind force, which depends on the wind velocity relative to that of the blades This blade response velocity component of the wind force is commonly referred to as added...conference paper 2014
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Van Dalen, K.N. (author), Metrikine, A. (author), Tsouvalas, A. (author)Transition radiation is emitted when a perturbation source (e.g., electric charge, mechanical load), which does not possess an inherent frequency, moves along a straight line at a constant velocity in or near an inhomogeneous medium. The phenomenon was described for the first time in electromagnetics, but it is universal from the physical point...conference paper 2014
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Versteijlen, W.G. (author), Van Dalen, K.N. (author), Metrikine, A. (author), Hamre, L. (author)In this contribution, in situ seismic measurements are used to derive the small-strain shear modulus of soil as input for two soil-structure interaction (SSI) models to assess the initial soil stiffness for offshore wind turbine foundations. This stiffness has a defining influence on the first natural frequency of offshore wind turbines (OWTs),...conference paper 2014
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Van der Male, P. (author), Van Dalen, K.N. (author)The wind force on turbine blades, consisting of a drag and lift component, depends nonlinearly on the relative wind velocity. This relative velocity comprises mean wind speed, wind speed fluctuations and the structural response velocity. The nonlinear wind excitation couples the flap wise and edge wise response of a turbine blade. To analyze...journal article 2014
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Van Dalen, K.N. (author), Wapenaar, C.P.A. (author), Halliday, D.F. (author)Virtual-source surface wave responses can be retrieved using the crosscorrelation (CC) of wavefields observed at two receivers. Higher mode surface waves cannot be properly retrieved when there is a lack of subsurface sources that excite these wavefields, as is often the case. In this paper, we present a multidimensional-deconvolution (MDD)...journal article 2013
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Van der Male, P. (author), Van Dalen, K.N. (author), Metrikine, A. (author)This paper presents the first step of the derivation of an aerodynamic damping matrix that can be adopted for the foundation design of a wind turbine. A single turbine blade is modelled as a discrete mass-spring system, representing the flap and edge wise motions. Nonlinear wind forcing is applied, which couples the degrees of freedom. The...conference paper 2013
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- Van Dalen, K.N. (author), Slob, E.C. (author), Schoemaker, C. (author) journal article 2013
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Kudarova, A. (author), Van Dalen, K.N. (author), Drijkoningen, G.G. (author)An effective poroelastic model is proposed that describes seismic attenuation and dispersion in periodically layeredmedia. In this model, the layers represent mesoscopic-scale heterogeneities (larger than the grain and pore sizes but smaller than the wavelength) that can occur both in fluid and solid properties. The proposed effectivemedium is...journal article 2013
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Van Dalen, K.N. (author), Wapenaar, C.P.A. (author), Halliday, D.F. (author)Virtual-source surface-wave responses can be retrieved using the crosscorrelation of wavefields observed at two receivers. Higher-mode surface waves cannot be properly retrieved when there is a lack of subsurface sources, which is often the case. In this paper, we present a multidimensional-deconvolution scheme that introduces an additional...conference paper 2013
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