• Limited Visual Range in the Social Force Model: Effects on Macroscopic and Microscopic Dynamics 

  García, A.; Hernández-Delfin, D.; Lee, D.-J.; Ellero, M. (2023-01-15)

  The Social Force Model has been widely used to simulate pedestrian dynamics. Its simplicity and ability to reproduce some collective patterns of behavior make it an adequate tool in the field of pedestrian dynamics. However, ...

• A numerical method for suspensions of articulated bodies in viscous flows 

  Balboa, F.; Delmotte, B. (2022-09-01)

  An articulated body is defined as a finite number of rigid bodies connected by a set of arbitrary constraints that limit the relative motion between pairs of bodies. Such a general definition encompasses a wide variety of ...

• Technology-Agnostic Assessment of Wave Energy System Capabilities 

  Ruiz‐minguela, P.; Blanco, J.M.; Nava, V.; Jeffrey, H.F. (2022-04-01)

  Developing new wave energy technologies is risky, costly and time-consuming. The large diversity of concepts, components and evaluation criteria creates a vast design space of potentially feasible solutions. This paper ...

• Experimental investigation of anomalous molecular probe diffusion in entangled polymer melts 

  Nieto, D.; Ramakrishnan, V.; Smoukov, S. K.; Venerus, D. C. (2022-01-01)

  Investigations on the diffusion of small molecules or particles in polymeric materials are important to numerous technologies and can also be used to gain insight on polymer chain dynamics. Systems where the probe size is ...

• Mesoscopic simulations of inertial drag enhancement and polymer migration in viscoelastic solutions flowing around a confined array of cylinders 

  Nieto, D.; Ellero, M. (2022-07-01)

  We study the flow around a periodic array of cylinders using a mesoscopic viscoelastic fluid that mimics polymeric solutions. We model our fluid employing a novel mesoscopic method based on Smoothed Dissipative Particle ...

• Arbitrary flow boundary conditions in smoothed dissipative particle dynamics: A generalized virtual rheometer 

  Moreno, N.; Ellero, M. (2021-01-01)

  In this work, a methodology to perform rheological studies on smoothed dissipative particle dynamics under arbitrary flow configurations is introduced. To evaluate the accuracy and flexibility of the proposed methodology, ...

• Hydrodynamics of spike proteins dictate a transport-affinity competition for SARS-CoV-2 and other enveloped viruses 

  Moreno, N.; Moreno-Chaparro, D.; Balboa, F.; Ellero, M. (2022-12-01)

  Many viruses, such as SARS-CoV-2 or Influenza, possess envelopes decorated with surface proteins (a.k.a. spikes). Depending on the virus type, a large variability is present in the surface-proteins number, morphology and ...

• Self-diffusion of spherocylindrical particles flowing under non-uniform shear rate 

  Hernández-Delfin, D.; Weinhart, T.; Hidalgo, R. C. (2022-04-07)

  This work is devoted to study numerically the self-diffusion of spherocylindrical particles flowing down an inclined plane, using the discrete element method (DEM). This system is challenging due to particles being ...

• Modeling swelling effects during coffee extraction with smoothed particle hydrodynamics 

  Mo, C.; Navarini, F.; Ellero, M.; Liverani, F.S. (2022-04-01)

  It is commonly assumed that coffee particles swell during filtration, but it has not been clarified how different degrees of swelling affect the extraction. In this article, we propose a grain swelling model to investigate ...

• Time-adaptive Adomian decomposition-based numerical scheme for Euler equations 

  Garcia, I.; Remaki, L. (2022-04-21)

  Time efficiency is one of the more critical concerns in computational fluid dynamics simulations of industrial applications. Extensive research has been conducted to improve the underlying numerical schemes to achieve time ...

• Numerical Approaches for Loads and Motions Assessment of Floating WECs Moored by Means of Catenary Mooring Systems 

  Touzon, I.; Petuya, V.; Nava, V.; Alonso-Reig, M.; Mendikoa, I. (2022)

  Technologies for harvesting offshore renewable energy based on float- ing platforms, such as offshore wind, wave and tidal energies, are currently being developed with the purpose of achieving a competitive cost of energy. ...

• Motile dislocations knead odd crystals into whorls 

  Bililign, E. S.; Balboa, F.; Ganan, Y. A.; Poncet, A.; Soni, V.; Magkiriadou, S.; Shelley, M.J.; Bartolo, D.; Irvine, W.T.M. (2021-01-01)

  The competition between thermal fluctuations and potential forces governs the stability of matter in equilibrium, in particular the proliferation and annihilation of topological defects. However, driving matter out of ...

• Modeling the effect of flow-induced mechanical erosion during coffee filtration 

  Chaojie, M.; Johnston, R.; Navarini, L.; Ellero, M. (2021-09)

  The espresso extraction process involves a complex transport inside a geometry-changing porous medium. Large solid grains forming the majority of the porous medium can migrate, swell, consolidate and they can also ...

• Thermal conductivity of amorphous polymers and its dependence on molecular weight 

  Kiessling, A.; Nieto, D.; Vogiatzis, G.G.; Venerus, D. C. (2021-07-16)

  Thermal conductivity is an important transport property governing the performance of polymers in non-isothermal conditions. Nevertheless, its dependence on molecular weight M has not been the subject of as much attention ...

• A comparison of numerical approaches for the design of mooring systems for wave energy converters 

  Touzon, I.; Nava, V.; de Miguel, B.; Petuya, V. (2020-07-01)

  This paper analyses the numerical outcome of applying three different well-known mooring design approaches to a floating wave energy converter, moored by means of four catenary lines. The approaches include: a linearized ...

• Review of systems engineering (Se) methods and their application to wave energy technology development 

  Ruiz‐minguela, P.; Nava, V.; Hodges, J.; Blanco, J.M. (2020-10-01)

  The design of effective and economically viable wave energy devices involves complex decision‐making about the product based on conceptual design information, including stakeholder requirements, functions, components and ...

• Small scale experimental validation of a numerical model of the HarshLab2.0 floating platform coupled with a non-linear lumped mass catenary mooring system 

  Touzon, I.; Nava, V.; Gao, Z.; Mendikoa, I.; Petuya, V. (2020-03-15)

  When focusing on mooring system numerical modelling, the efforts are focused on validating models that increase the accuracy and maintain the computation time under reasonable limits. In this paper an approach for modelling ...

• Frequency domain modelling of a coupled system of floating structure and mooring Lines: An application to a wave energy converter 

  Touzon, I.; Nava, V.; Gao, Z.; Petuya, V. (2021-01-15)

  Floating structures for single offshore renewable energy devices, i.e. wave energy converters, tend to be significantly smaller than those of the traditional offshore industry and the interaction between floater motions ...

• Metallic microswimmers driven up the wall by gravity 

  Brosseau, Quentin; Balboa, F.; Lushi, Enkeleida; Wu, Yang; Ristroph, Leif; Ward, Michael D.; Shelley, Michael J.; Zhang, Jun (2021-07-21)

  Experiments on autophoretic bimetallic nanorods propelling within a fuel of hydrogen peroxide show that tail-heavy swimmers preferentially orient upwards and ascend along inclined planes. We show that such gravitaxis is ...

• Dynamics and rheology of a suspension of super-paramagnetic chains under the combined effect of a shear flow and a rotating magnetic field 

  Rossi, E.; Ruiz-Lopez, J.A.; Vazquez-Quesada, A.; Ellero, M. (2021)

  This study presents an analysis of the dynamics of a single and multiple chains of spherical super-paramagnetic beads suspended in a Newtonian fluid under the combined effect of an external rotating magnetic field and a ...

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