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da Silva, Renan F. (author), Hansen, Jeff E. (author), Lowe, Ryan J. (author), Rijnsdorp, D.P. (author), Buckley, Mark L. (author)Nearshore rocky reefs with scales of order 10–100 m are common along the world's coastline and often shape wave-driven hydrodynamics and shoreline morphology in their lee. The interaction of waves with these reefs generally results in either two or four-cell mean circulation systems (2CC and 4CC, respectively), with diverging flows behind the...journal article 2023
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Lowe, R. J. (author), Altomare, C. (author), Buckley, M. L. (author), da Silva, R. F. (author), Hansen, J. E. (author), Rijnsdorp, D.P. (author), Domínguez, J. M. (author), Crespo, A. J.C. (author)As waves interact with the slopes of coral reefs and other steep bathymetry profiles, plunging breaking usually occurs where the free surface overturns and violent water motion is triggered. Resolving these surf zone processes pose significant challenges for conventional mesh-based hydrodynamic models, due to the rapidly-deforming nature of...journal article 2022
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da Silva, Renan F. (author), Hansen, Jeff E. (author), Rijnsdorp, D.P. (author), Lowe, Ryan J. (author), Buckley, Mark L. (author)Engineered and natural submerged coastal structures (e.g., submerged breakwaters and reefs) modify incident wave fields and thus can alter hydrodynamic processes adjacent to coastlines. Although submerged structures are generally assumed to promote beach protection by dissipating waves offshore and creating sheltered conditions in their lee,...journal article 2022
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David, Daniel R. (author), Kurniawan, Adi (author), Wolgamot, Hugh (author), Hansen, Jeff E. (author), Rijnsdorp, D.P. (author), Lowe, Ryan (author)To be commercially viable, wave energy converters (WECs) will need to be deployed in arrays or “wave farms” to generate significant amounts of energy and to have the costs of these farms minimised. However, when designing a wave farm, there are a number of trade-offs to be made between competing objectives; for example, between the power...journal article 2022
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Buckley, Mark L. (author), Lowe, Ryan J. (author), Hansen, Jeff E. (author), van Dongeren, Ap R. (author), Pomeroy, Andrew (author), Storlazzi, Curt D. (author), Rijnsdorp, D.P. (author), da Silva, Renan F. (author), Contardo, Stephanie (author), Green, Rebecca H. (author)Wave breaking on the steep fore-reef slopes of shallow fringing reefs can be effective at dissipating incident sea-swell waves prior to reaching reef shorelines. However, wave setup and free infragravity waves generated during the sea-swell breaking process are often the largest contributors to wave-driven water levels (wave runup) at the...journal article 2022
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Dushatskiy, A. (author), Lowe, Gerry (author), Bosman, P.A.N. (author), Alderliesten, T. (author)Deep learning algorithms have become the golden standard for segmentation of medical imaging data. In most works, the variability and heterogeneity of real clinical data is acknowledged to still be a problem. One way to automatically overcome this is to capture and exploit this variation explicitly. Here, we propose an approach that improves...conference paper 2022
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da Silva, Renan F. (author), Rijnsdorp, D.P. (author), Hansen, Jeff E. (author), Lowe, Ryan (author), Buckley, Mark (author), Zijlema, Marcel (author)Analysis of the mean (wave-averaged) momentum balance is a common approach used to explain the physical forcing driving wave set-up and mean currents in the nearshore zone. Traditionally this approach has been applied to phase-averaged models but has more recently been applied to phase-resolving models using post-processing, whereby model...journal article 2021
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Contardo, Stephanie (author), Lowe, Ryan J. (author), Hansen, Jeff E. (author), Rijnsdorp, D.P. (author), Dufois, François (author), Symonds, Graham (author)Long waves are generated and transform when short-wave groups propagate into shallow water, but the generation and transformation processes are not fully understood. In this study we develop an analytical solution to the linearized shallow-water equations at the wave-group scale, which decomposes the long waves into a forced solution (a bound...journal article 2021
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Rijnsdorp, D.P. (author), Buckley, Mark L. (author), da Silva, Renan F. (author), Cuttler, Michael V.W. (author), Hansen, Jeff E. (author), Lowe, Ryan J. (author), Green, Rebecca H. (author), Storlazzi, Curt D. (author)Two-dimensional mean wave-driven flow and setup dynamics were investigated at a reef-lagoon system at Ningaloo Reef, Western Australia, using the numerical wave-flow model, SWASH. Phase-resolved numerical simulations of the wave and flow fields, validated with highly detailed field observations (including >10 sensors through the energetic...journal article 2021
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Tinker, Jonathan (author), Palmer, Matthew D. (author), Copsey, Dan (author), Howard, Tom (author), Lowe, Jason A. (author), Hermans, T.H.J. (author)Variability of Sea-Surface Height (SSH) from ocean dynamic processes is an important component of sea-level change. In this study we dynamically downscale a present-day control simulation of a climate model to replicate sea-level variability in the Northwest European shelf seas. The simulation can reproduce many characteristics of sea-level...journal article 2020
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Lowe, Ryan J. (author), Buckley, Mark L. (author), Altomare, Corrado (author), Rijnsdorp, Dirk P. (author), Suzuki, T. (author), Bricker, J.D. (author)In this study we assess the capabilities of the mesh-free, Lagrangian particle method (Smooth Particle Hydrodynamics, SPH) method to simulate the detailed hydrodynamic processes generated by both spilling and plunging breaking waves within the surf zone, and present how the approach can be used to predict a broad spectrum of hydrodynamic...conference paper 2019
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Lowe, R. J. (author), Buckley, M. L. (author), Altomare, C. (author), Rijnsdorp, D. P. (author), Yao, Y. (author), Suzuki, T. (author), Bricker, J.D. (author)In this study we investigated the capabilities of the mesh-free, Lagrangian particle method (Smoothed Particle Hydrodynamics, SPH) to simulate the detailed hydrodynamic processes generated by both spilling and plunging breaking waves within the surf zone. The weakly-compressible SPH code DualSPHysics was applied to simulate wave breaking over...journal article 2019
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Lashley, Christopher H. (author), Roelvink, D. (author), Van Dongeren, Ap R. (author), Buckley, Mark (author), Lowe, Ryan J. (author)The accurate prediction of extreme wave run-up is important for effective coastal engineering design and coastal hazard management. While run-up processes on open sandy coasts have been reasonably well-studied, very few studies have focused on understanding and predicting wave run-up at coral reef-fronted coastlines. This paper applies the short...journal article 2018
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Liu, D (author), Šavija, B. (author), Smith, G.E. (author), Flewitt, P.E.J. (author), Lowe, T. (author), Schlangen, E. (author)In this work, porosity-property relationships of quasi-brittle materials are explored through a combined experimental and numerical approach. In the experimental part, hemihyrate gypsum plaster powder (CaSO 4 ⋅1/2H 2 O CaSO4⋅1/2H2O) and expanded spherical polystyrene beads (1.5–2.0 mm dia.) have been mixed to form a model material with...journal article 2017
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Bodde, W.P. (author), Pomeroy, A.W.M. (author), Van Dongeren, A.R. (author), Lowe, R. (author), van Thiel de Vries, J.S.M. (author)Coral reefs are highly valuable ecosystems, which are under an increasing number of environmental pressures. Sedimentation and sediment transport patterns are among key physical drivers of coral reefs, so it is important to improve our understanding of these poorly studied dynamics on reefs. To this purpose, flume experiments were performed on a...conference paper 2014
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- Pomeroy, A.W.M. (author), Lowe, R.J. (author), Bowyer, C. (author), Zhang, Z. (author), Falter, J. (author), Van Dongeren, A. (author), Roelvink, D. (author) conference paper 2013
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Pomeroy, A.W.M. (author), van Dongeren, A. (author), Lowe, R.J. (author), Van Thiel de Vries, J.S.M. (author), Roelvink, J.A. (author)Low frequency wave resonance has been postulated to enhance damage to coral reef protected coastlines during storm events. This paper uses the numerical model XBeach to examine the dynamics that contribute to resonance that have been previously observed on a fringing reef on Guam during tropical storm Man-Yi (Péquignet et al., 2009). The methods...conference paper 2012
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Pomeroy, A. (author), Lowe, R. (author), Symonds, G. (author), Van Dongeren, A. (author), Moore, C. (author)A 3 week field study was conducted to investigate the dynamics of low-frequency (infragravity) wave motions over a fringing reef at Ningaloo Reef, Western Australia. Short-period wave motions (0.04–0.2 Hz) were observed to dissipate on the reef crest beyond which infragravity wave motions (0.004–0.04 Hz) gradually dominated toward the lagoon....journal article 2012
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Katsman, C.A. (author), Sterl, A. (author), Beersma, J.J. (author), Van den Brink, H.W. (author), Church, J.A. (author), Hazeleger, W. (author), Kopp, R.E. (author), Kroon, D. (author), Kwadijk, J. (author), Lammersen, R. (author), Lowe, J. (author), Oppenheimer, M. (author), Plag, H.P. (author), Ridley, J. (author), Von Storch, H. (author), Vaughan, D.G. (author), Vellinga, P. (author), Vermeersen, L.L.A. (author), Van de Wal, R.S.W. (author), Weisse, R. (author)Sea level rise, especially combined with possible changes in storm surges and increased river discharge resulting from climate change, poses a major threat in low-lying river deltas. In this study we focus on a specific example of such a delta: the Netherlands. To evaluate whether the country’s flood protection strategy is capable of coping with...journal article 2011
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Lowe, C.P. (author), Bakker, A.F. (author), Dreischor, M.W. (author)We describe simulations of isolated ideal polymer chains consisting of N monomers. The solvent is simulated using a dissipative ideal gas maintained at a set temperature by a Lowe-Andersen thermostat. By choosing a particular ratio of the Kuhn length to the monomer hydrodynamic radius, long-polymer scaling of the diffusion coefficient holds even...journal article 2004
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