Hydrodynamics; Marine; Ecohydraulics; Aquatic ; Benthic; Infiltration; Nanoparticles; Particles; Remobilization; Plankton; Turbulence
Gülan Utku, Saguner Ardan Muammer, Akdis Deniz, Gotschy Alexander, Tanner Felix C., Kozerke Sebastian, Manka Robert, Brunckhorst Corinna, Holzner Markus, Duru Firat (2019), Hemodynamic Changes in the Right Ventricle Induced by Variations of Cardiac Output: A Possible Mechanism for Arrhythmia Occurrence in the Outflow Tract, in Scientific Reports
, 9(1), 100-100.
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.
Gülan Utku, Appa Harish, Corso Pascal, Templin Christian, Bezuidenhout Deon, Zilla Peter, Duru Firat, Holzner Markus (2019), Performance Analysis of the Transcatheter Aortic Valve Implantation ( TAVI ) on Blood Flow Hemodynamics: An Optical Imaging‐based In Vitro Study, in Artificial Organs
Corso Pascal, Gülan Utku, Cohrs Nicholas, Stark Wendelin Jan, Duru Firat, Holzner Markus (2019), Comprehensive In Vitro Study of the Flow Past Two Transcatheter Aortic Valves: Comparison with a Severe Stenotic Case, in Annals of Biomedical Engineering
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.
Thamsen Bente, Gülan Utku, Wiegmann Lena, Loosli Christian, Schmid Daners Marianne, Kurtcuoglu Vartan, Holzner Markus, Meboldt Mirko (2019), Assessment of the Flow Field in the HeartMate 3 Using Three-Dimensional Particle Tracking Velocimetry and Comparison to Computational Fluid Dynamics, in ASAIO Journal
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
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 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.
Holzner Markus (2018), Polymers Reduce Drag More than Expected, in Physics
, 11, 29.
van Reeuwijk Maarten, Krug Dominik, Holzner Markus (2018), Small-scale entrainment in inclined gravity currents, in Environmental Fluid Mechanics
, 18(1), 225-239.
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.
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.
Gülan Utku, Saguner Ardan, Akdis Deniz, Gotschy Alexander, Manka Robert, Brunckhorst Corinna, Holzner Markus, Duru Firat (2017), Investigation of Atrial Vortices Using a Novel Right Heart Model and Possible Implications for Atrial Thrombus Formation, in Scientific Reports
, 7(1), 16772-16772.
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 Verónica L., 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
, 12(7), e0180374-e0180374.
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
, 2(7), 074302-074302.
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.
The domain of water sciences includes a broad spectrum of disciplines, which deal with fundamental aspects of water-related problems of modern society. Aquatic ecosystems (streams, rivers, estuaries, lakes, wetlands and marine environments) are structured by the interaction of physical, biological and chemical processes at multiple spatial and temporal scales. TENACIOUS is an interdisciplinary professorship program aimed at understanding feedback mechanisms between fluid flow and transported particles at multiple scales for the case where particles are active, i.e. they react back to the flow due to inertia or motility. Experiments that rely on the Lagrangian approach, i.e. based on a moving frame reference system that follows the motion of particles, have become available today and allow studying key environmental problems such as turbulent mixing and contaminant dispersion, transport of sediments and colloidal aggregates, collective motion of planktonic organisms, etc., in a most direct way.In the first phase of the professorship a large interdisciplinary research team has been established that focuses on hydromechanics, environmental transport processes, and flow-organism interactions in the frame of a SNSF Professorship whose focal themes are:•To uncover universal relations governing organisms in natural and man-made water bodies, where fluid flow shapes complex systems at every scale, ranging from fish schools and plankton swarms down to bacterial colonies, and to translate these relations into optimal design and intervention criteria.•To understand and model ecohydraulic processes at physical interfaces (e.g. surface-subsurface flow) whose set of chemical and physical attributes, biotic properties and material flow processes supports a large diversity and strength of interactions between organisms at different temporal and spatial scales. •To understand and model human impacts on aquatic ecosystems such as pollution dispersion, adverse impacts of hydropower operation, channelization and flood control, and to design new mitigation strategies based on the fundamental understanding of physico-biological couplings.The aim of this follow-up proposal is to advance two key lines of investigation emerged as novel and relevant in the first phase and to generalize findings on flow-organism interactions across spatial scales, leading to a high impact and a review paper on universal relations governing organisms in natural and man-made water bodies. This will provide the transition to a possible ETH Chair in ‘Multiscale Ecohydraulics’ currently under discussion in the Department. The two specific research objectives of the follow-up proposal are:1)To elucidate how physical and biological factors affect collective swimming behavior of planktonic and benthic organisms in turbulent flow to enable a deeper understanding of environmental impacts of natural or anthropogenic origin at multiple spatial scales and biological levels.2)To investigate the dynamics of colloidal particle remobilization in laboratory experiments mimicking high-rate well pumping and rain infiltration events in soils, to understand which specific combinations of physical and chemical changes in aquifers induce the release of nanoparticles and colloids.TENACIOUS’ multidisciplinary profile will continue to favour and consolidate existing international and national scientific collaborations, with anticipated results meeting both basic and practical research questions. Diffusion of knowledge will be promoted by publications in peer-reviewed international journals, presentations at relevant international conferences (e.g. IAHR, ASLO, AGU, APS) and national scientific forums.