Interface; Chemotaxis; Hydrodynamics; Particles; Sediment; Turbulence; Environmental; Fluid; Stratification; Hyporheic; Biofilm
Neamtu-Halic Marius M., Krug Dominik, Haller George, Holzner Markus (2019), Lagrangian coherent structures and entrainment near the turbulent/non-turbulent interface of a gravity current, in Journal of Fluid Mechanics
, 877, 824-843.
van Reeuwijk Maarten, Holzner Markus, Caulfield C. P. (2019), Mixing and entrainment are suppressed in inclined gravity currents, in Journal of Fluid Mechanics
, 873, 786-815.
Eberhard Ursin, Seybold Hansjoerg J., Floriancic Marius, Bertsch Pascal, Jiménez-Martínez Joaquin, Andrade José S., Holzner Markus (2019), Determination of the Effective Viscosity of Non-newtonian Fluids Flowing Through Porous Media, in Frontiers in Physics
, 7, 71.
Penn Roni, Maurer Max, Michalec François-Gaël, Scheidegger Andreas, Zhou Jiande, Holzner Markus (2019), Quantifying physical disintegration of faeces in sewers: Stochastic model and flow reactor experiments, in Water Research
, 152, 159-170.
Harmanci Yunus, Gülan Utku, Holzner Markus, Chatzi Eleni (2019), A Novel Approach for 3D-Structural Identification through Video Recording: Magnified Tracking, in Sensors
, 19(5), 1229-1229.
Sidler Daniel, Michalec François-Gaël, Holzner Markus (2018), Counter-current swimming of lotic copepods as a possible mechanism for drift avoidanceBenthic copepods swim actively to reduce downstream drift, in Ecohydrology
, 11(7), e1992-e1992.
Gülan Utku, Holzner Markus (2018), The influence of bileaflet prosthetic aortic valve orientation on the blood flow patterns in the ascending aorta, in Medical Engineering & Physics
, 60, 61-69.
Gülan Utku, Calen Christelle, Duru Firat, Holzner Markus (2018), Blood flow patterns and pressure loss in the ascending aorta: A comparative study on physiological and aneurysmal conditions, in Journal of Biomechanics
, 76, 152-159.
Fouxon Itzhak, Schmidt Lukas, Ditlevsen Peter, van Reeuwijk Maarten, Holzner Markus (2018), Inhomogeneous growth of fluctuations of concentration of inertial particles in channel turbulence, in Physical Review Fluids
, 3(6), 064301-064301.
Carrel Maxence, Morales Verónica L., Beltran Mario A., Derlon Nicolas, Kaufmann Rolf, Morgenroth Eberhard, Holzner Markus (2018), Biofilms in 3D porous media: Delineating the influence of the pore network geometry, flow and mass transfer on biofilm development, in Water Research
, 134, 280-291.
Sidler Daniel, Michalec François-Gaël, Holzner Markus (2018), Behavioral response of the freshwater cyclopoid copepod Eucyclops serrulatus to hydropeaking and thermopeaking in a laboratory flume, in Journal of Freshwater Ecology
, 33(1), 115-127.
Carrel M., Morales V. L., Dentz M., Derlon N., Morgenroth E., Holzner M. (2018), Pore‐Scale Hydrodynamics in a Progressively Bioclogged Three‐Dimensional Porous Medium: 3‐D Particle Tracking Experiments and Stochastic Transport Modeling, in Water Resources Research
, 54(3), 2183-2198.
van Reeuwijk Maarten, Krug Dominik, Holzner Markus (2018), Small-scale entrainment in inclined gravity currents, in Environmental Fluid Mechanics
, 18(1), 225-239.
Michalec François-Gaël, Fouxon Itzhak, Souissi Sami, Holzner Markus (2017), Zooplankton can actively adjust their motility to turbulent flow, in Proceedings of the National Academy of Sciences
, 114(52), E11199-E11207.
Fetzer Jasmin, Holzner Markus, Plötze Michael, Furrer Gerhard (2017), Clogging of an Alpine streambed by silt-sized particles – Insights from laboratory and field experiments, in Water Research
, 126, 60-69.
Morales V. L., Dentz M., Willmann M., Holzner M. (2017), Stochastic dynamics of intermittent pore-scale particle motion in three-dimensional porous media: Experiments and theoryPARTICLE MOTION DYNAMICS IN POROUS MEDIA, in Geophysical Research Letters
, 44(18), 9361-9371.
Michalec François-Gaël, Holzner Markus, Barras Alexandre, Lacoste Anne-Sophie, Brunet Loïc, Lee Jae-Seong, Slomianny Christian, Boukherroub Rabah, Souissi Sami (2017), Short-term exposure to gold nanoparticle suspension impairs swimming behavior in a widespread calanoid copepod, in Environmental Pollution
, 228, 102-110.
Carrel Maxence, Beltran Mario A., Morales Veronica Lorena, Derlon Nicolas, Morgenroth Eberhard, Kaufmann Rolf, Holzner Markus (2017), Biofilm Imaging in Porous Media by Laboratory X-ray Tomography: Combining a Non-Destructive Contrast Agent with Propagation-Based Phase-Contrast Imaging Tools., in Plos One
Schmidt Lukas, Fouxon Itzhak, Holzner Markus (2017), Inertial particles distribute in turbulence as Poissonian points with random intensity inducing clustering and supervoiding, in Physical Review Fluids
Krug Dominik, Holzner Markus, Marusic Ivan, van Reeuwijk Maarten (2017), Fractal scaling of the turbulence interface in gravity currents, in Journal of Fluid Mechanics
, 820, R3-R3.
Gülan Utku, Binter Christian, Kozerke Sebastian, Holzner Markus (2017), Shear-scaling-based approach for irreversible energy loss estimation in stenotic aortic flow – An in vitro study, in Journal of Biomechanics
, 56, 89-96.
van Reeuwijk Maarten, Krug Dominik, Holzner Markus (2017), Small-scale entrainment in inclined gravity currents, in Environmental Fluid Mechanics
Sidler Daniel, Michalec François-Gaël, Detert Martin, Holzner Markus (2017), Three-dimensional tracking of the motion of benthic copepods in the free water and inside the transparent sediment bed of a laboratory flume3D tracking of benthic copepods, in Limnology and Oceanography: Methods
, 15(2), 125-139.
Holzner Markus, van Reeuwijk Maarten (2017), The turbulent/nonturbulent interface in penetrative convection, in Journal of Turbulence
, 18(3), 260-270.
Lozano-Durán A., Holzner M., Jiménez J. (2016), Multiscale analysis of the topological invariants in the logarithmic region of turbulent channels at a friction Reynolds number of 932, in Journal of Fluid Mechanics
, 803, 356-394.
Fouxon Itzhak, Holzner Markus (2016), Solvable continuous-time random walk model of the motion of tracer particles through porous media, in Physical Review E
, 94(2), 022132-022132.
Saha Debashish, Babler Matthaus U., Holzner Markus, Soos Miroslav, Lüthi Beat, Liberzon Alex, Kinzelbach Wolfgang (2016), Breakup of Finite-Size Colloidal Aggregates in Turbulent Flow Investigated by Three-Dimensional (3D) Particle Tracking Velocimetry, in Langmuir
, 32(1), 55-65.
Schmidt Lukas, Fouxon Itzhak, Krug Dominik, van Reeuwijk Maarten, Holzner Markus (2016), Clustering of particles in turbulence due to phoresis, in Physical Review E
, 93(6), 1-21.
Brand Andreas, Noss Christian, Dinkel Christian, Holzner Markus (2016), High-Resolution Measurements of Turbulent Flow Close to the Sediment–Water Interface Using a Bistatic Acoustic Profiler, in Journal of Atmospheric and Oceanic Technology
, 33(4), 769-788.
Michalec François-Gaël, Holzner Markus, Souissi Anissa, Stancheva Stefka, Barras Alexandre, Boukherroub Rabah, Souissi Sami (2016), Lipid nanocapsules for behavioural testing in aquatic toxicology: Time–response of Eurytemora affinis to environmental concentrations of PAHs and PCB, in Aquatic Toxicology
, 170, 310-322.
Binter Christian, Gülan Utku, Holzner Markus, Kozerke Sebastian (2016), On the accuracy of viscous and turbulent loss quantification in stenotic aortic flow using phase-contrast MRIQuantification of Viscous and Turbulent Losses, in Magnetic Resonance in Medicine
, 76(1), 191-196.
Michalec François-Gaël, Schmitt François G., Souissi Sami, Holzner Markus (2015), Characterization of intermittency in zooplankton behaviour in turbulence, in The European Physical Journal E
, 38(10), 108-115.
Holzner M., Morales V. L. M., Willmann M., Dentz M. (2015), Intermittent Lagrangian velocities and accelerations in three-dimensional porous medium flow., in Phys. Rev. E
, 92, 013015.
Lozano-Durán Adrián, Holzner Markus, Jiménez Javier (2015), Numerically accurate computation of the conditional trajectories of the topological invariants in turbulent flows, in Journal of Computational Physics
, 295, 805-814.
Krug Dominik, Holzner Markus, Lüthi Beat, Wolf Marc, Kinzelbach Wolfgang, Tsinober Arkady (2015), The turbulent/non-turbulent interface in an inclined dense gravity current, in Journal of Fluid Mechanics
, 765, 303-324.
Michalec F. G., Souissi S., Holzner M. (2015), Turbulence triggers vigorous swimming but hinders motion strategy in planktonic copepods, in Journal of the Royal Society Interface
, 12(106), 20150158.
van Reeuwijk Maarten, Holzner Markus (2014), The turbulence boundary of a temporal jet, in Journal of Fluid Mechanics
, 739, 254-275.
Michalec F. G., Holzner M., Souissi A., Stancheva S., Barras A., Boukherroub R., Souissi S., Lipid nanocapsules for behavioural testing in aquatic toxicology: time-response of Eurytemora affinis to environmental concentrations of PAHs and PCB., in Aquatic Toxicology
Turbulence is ubiquitous in nature and so is its ability to form interfaces and promote mixing and dispersion of species and particles across them. Sharp and strongly convoluted turbulence interfaces exist at the edges of free-shear flows such as effluent jets from waste-water outlets, atmospheric boundary layers and wakes of aircrafts. Interfaces appear at the boundaries of clouds in the atmosphere or in stratified flows in the ocean and lakes or between turbulent river flow and its sediment bed and they have a major importance on the flow dynamics because of their impact on transport of mass, heat and momentum. The dynamics of turbulence interfaces is intimately related to transport of particulate matter such as sediment grains or organic matter, which is of major significance for pollution dispersion in the atmosphere, sediment transport in rivers, formation of biofilms, and plankton dynamics - and they constitute an outstanding scientific research problem with immediate practical applications. TIPFluiD is an interdisciplinary professorship program aimed at understanding feedback mechanisms between fluid interfaces and transported particles for the case where particles are active, i.e. they react back to the flow due to inertia or motility. Up to now our understanding of such mechanisms is limited mainly because the interaction between fluid flow and active particles has received little attention and appropriate measurements are challenging to obtain. The expectation is that a better understanding of such feedback processes will significantly advance our understanding of environmental flows and important ecological processes occurring in aquatic ecosystems. Many aspects of turbulence interfaces and associated transport of particles have been studied extensively in the literature, but only recently have the technical and conceptual tools matured to a level that enables addressing fluid-particle interactions at a suitable range of spatial and temporal scales. In particular, experiments and numerical simulations that rely on the Lagrangian approach, i.e. based on a moving frame reference system that follows the motion of particles and interfaces, are available today at sufficient temporal and spatial resolutions. They allow studying key environmental problems such as turbulent folding of fluid interfaces in contaminant dispersion, re-suspension and deposition of sediment particles, collective motion of planktonic organisms, coupling between hydrodynamics and biofilm growth, in a most direct way. The aim of TIPFluiD is to establish a team that focuses on hydromechanics, environmental transport processes and flow-organism interactions with the following four objectives: 1. The study of the characteristics of turbulence interfaces in the presence of a density stratification and their effect on dispersion of inertial particles (PhD 1); 2. The analysis of collective swimming behaviour of copepods under the influence of hydrodynamic and chemical gradients (PhD 2); 3. The study of biofilm-flow interactions in porous media at pore scale (PhD 3); 4. The assessment of the transport of sediments and nutrients across the hyporheic region in open channel flow (Postdoc). In order to target these objectives, TIPFluiD is framed into 4 independent, but strongly interconnected research modules, involving 3 PhD students and one Postdoc. Each module stands for a key process at the interface between environmental fluid flow and particle transport. The module addressing transport of sediments and nutrients across the hyporheic interface covers the largest topical range and is designed as an integrative module where the strings are pulled together. For this reason the investigation of this part is assigned to a Postdoc with the ability to help the professorship with the coordination of the work of the PhD students. The project will be carried out in research modules by complementing laboratory experiments, numerical simulations and field measurements. TIPFLuiD’s multidisciplinary profile will favour and consolidate existing international and national scientific collaborations, with anticipated results meeting both basic and practical research questions. Diffusion of knowledge will hence be promoted by relevant publications in professional peer-reviewed international journals, presentations at relevant both international conferences (e.g. IAHR, EGU, AGU) and national scientific forums. From a practical viewpoint TIPFluiD will help local decision makers for the planning of dam operations, river management, restoration works and the design of biological reactors.