Prof. Ignazio Maria Viola
Ignazio Maria Viola is Professor of Fluid Mechanics and Bioinspired Engineering at the School of Engineering, University of Edinburgh; Distinguished Visiting Professor at Tsinghua University; and Fellow of the Royal Institution of Naval Architects. He has been awarded two Medals of Distinction and one Medal of Exceptional Merit by the Royal Institution of Naval Architects, as well as the Covid-19 Hero Medal of the School of Engineering (U. Edi) for significant contribution to solving Covid-19 challenges. He is Editor-in-Chief of the Journal of Sailing Technology of the Society of Naval Architects and Marine Engineers, a society of which he is member of the Council (governing body). He is also Associate Editor of the Journal of Offshore Mechanics and Arctic Engineering, and Editorial Board Member of Oean Eng, J Marit Eng, Int J Small Craft Tech, and J Mar Sc and Eng. He is the recipient of the ERC Consolidator Grant Dandidrone to explore the unsteady aerodynamics of dandelion-inspired drones. He is the Principal Investigator of the EPSRC project Morphing Blades for Tidal Turbines (EP/V009443/1), the Edinburgh co-Director of the Centre for Doctoral Training (CDT) in Wind & Marine Energy Systems (EP/L016680/1) and Co-Investigator and Edinburgh Deputy Director of the CDT in Wind & Marine Energy Systems & Structures (EP/S023801/1).
Dr Chandan Bose, Research Associate
Chandan completed his graduation in Civil Engineering from Jadavpur University, India, in 2013, where he was the university gold medalist (first class first) of his batch. He received his master’s and Ph.D. degrees from the Department of Applied Mechanics at the Indian Institute of Technology Madras, India, in 2019. His Ph.D. research was on the dynamical analysis of the unsteady flow phenomena around a flapping wing through high-fidelity numerical simulations and wind tunnel experiments. He received the Institute Research Award (IIT Madras), V. Ramamurthy Best Thesis Award (IIT Madras), and the prestigious Indian National Academy of Engineering Innovative Project Award for his doctoral research contribution. Following his Ph.D., he did a postdoctoral stint at the University of Liege, Belgium, where he was awarded the Wallonie Bruxelles International Excellence Postdoctoral Fellowship and FNRS Postdoctoral Fellowship to work on nonlinear aeroelasticity and fluid-structure Interaction. He has been chosen as one of the outstanding reviewers of the Year 2020 by the ASME Journal of Computational and Nonlinear Dynamics. He has joined VOILAb as a research associate to work on the ERC CoG project “Dandidrone” to study the underlying fluid-structure interaction dynamics of dandelion seed propulsion and its application towards building a microdrone.
Dr Yabin Liu, Research Associate
Yabin is a researcher in the broad area of fluid dynamics, particularly around the bio-inspired design of tidal/wind turbines and aerial/underwater vehicles and vortex dynamics. He obtained his doctoral degree from the Department of Energy and Power Engineering of Tsinghua University in 2021, with both Outstanding Doctoral Thesis prize and Beijing Outstanding Graduate prize. He studied in the University of Cambridge as a visiting Ph.D. student for 1 year, sponsored by China Scholarship Council. His doctoral project was on spatial-temporal evolution and controlling methods of tip leakage vortex in turbomachinery. He has a distinguished peer-reviewed publication record, with 3 ESI Highly-Cited/Hot papers and an H-index of 15. He won many prestigious scholarships and prizes, including the Chung-Hua Wu Outstanding Graduate Prize, the highest domestic honour in this major with 9 students awarded in China in 2020. He was granted the International Postdoctral Exchange Fellowship from China Postdoctoral Council, which is awarded to 100 researchers for all disciplines. He has joined VOILAb as a research associate to work on the EPSRC Morphing Blades project. He is exploring gust mitigation through passive pitch and flexible trailing edge within analytical analysis and fluid-structure interaction simulation.
Dr Shūji Ōtomo, Research Associate
Shūji attained his Bachelor’s degree in Mechanical Engineering in 2017 from Hokkaido University in Japan. His research project was to investigate the effect of turbulence on Savonius turbine. He has experimentally shown that Savonius turbine shows a better performance in turbulence subjected to Kolmogorv cascade by using hot-wire anemometry and particle image velocimetry. During his BSc, he was awarded a scholarship from Japan Student Service Organization (JASSO) for his PhD study within VOILAb. His experimental research project focuses on bio-inspired arrays of fish-like energy harvesters. His specialist expertise includes vortex flow, particle image velocimetry and impulse method. While completing his PhD, Shūji has also took up the position of part-time Research Assistant within VOILAb to develop a low-order hydrodynamic model of the tidal company Tidal Flyer.
PhD Thesis: "Unsteady lift on high-amplitude pitching aerofoils with massive flow separation," http://dx.doi.org/10.7488/era/2530
Dr Stefano Gambuzza, Research Associate
Stefano joined VOILAb in December 2021, where he holds the position of Research Associate in the Fluid Mechanics of Morphing Blades, researching novel technologies for application in real-scale machines. Prior to that, he obtained his PhD from the University of Southampton, where he studied the changes in performance and wake of a model-scale wind turbine subject to free-stream turbulence, and both his Master's and Bachelor's Degree in Aerospace Engineering from the Sapienza University in Rome, where he focussed on the wakes generated by bluff-bodies such as automobiles. During his studies, he has also visited the Technical University of Delft, where he wrote his MSc thesis. Having carried out experiments during the whole of his academic life, he is familiar with techniques for direct measurement of flows such as PIV and hot-wire anemometry, and he is keen to learn more on the technical aspects of experimental fluid mechanics. His main interest is on wind energy, and how the novel research in this field can be applied to solve the problems we face today.
Jean-Baptiste R G Souppez, PhD Student
Jean-Baptiste R. G. Souppez holds the position of Senior Teaching Fellow in Mechanical Engineering and Design at Aston University, and Visiting Professor at the University of Liège. He originally graduated from the BEng (Hons) in Yacht and Powercraft Design at Southampton Solent University. He then qualified as a Traditional Wooden Boatbuilder before completing the MEngSt in Yacht Engineering at University of Auckland, where he was awarded the Yacht Engineering Scholarship for Academic Merit. He is currently undertaking part-time PhD within VOILAb on leading edge vortices and the numerical modeling of modern asymmetric spinnakers.
Kuba Frankowski, PhD Student
Kuba joined VOILAb in 2021 as a PhD student through the CDT in Wind and Marine Energy Systems and Structures. He’s obtained his BSc in Physics from Swansea University in 2020 being awarded the Best Graduating BSc Student prize from his year group. He completed his MSc in Sustainable Energy and Environment at Cardiff University, where he studied conventional and alternative energy systems, engineering thermodynamics and finite-element-modelling methods. For his dissertation he studied the effects of changing tidal turbine blade geometries at different tip-speed-ratios using blade-element-momentum-theory to optimise an existing blade design and set constraints for a theoretical adaptive blade. The results aimed to indicate the degree of twist changes that the blade would have to assume to maximise torque production at different turbine rotations and stream-flow speeds. Kuba has subsequently joined VOILAb to work on the Morphing Blades project.
Doudou Huang, PhD Student
Doudou joined VOILAb as a PhD student in August 2022 through the CDT in Wind and Marine Energy Systems and Structures. Her PhD focuses on the aerodynamics of dandelion-inspired drones (dandidrones). She obtained her MSc degree in Aerospace engineering from the University of Stuttgart, Germany, in 2021. In her final-year project, Doudou investigated the impact of actively morphing blades on cycloidal rotors (https://doi.org/10.1088/1757-899X/1226/1/012014). Prior to that, she was awarded a BSc degree in Aircraft Power Engineering from Nanjing University of Aeronautics and Astronautics, China, in 2018.
Bappa Mitra, PhD Student
Bappa was a Marie Curie Early-Stage Researcher at Fondazione Bruno Kessler, Italy, where he worked on additive manufacturing and sensor packaging for water quality monitoring from 2019 to 2022. In 2019, he completed his MSc in Smart Systems Integration - an Erasmus+ Joint International Master Programme. He received his Bachelor of Engineering degree in Electronics and Communication from Anna University, India in 2015. Between 2015 and 2017, he worked as Application Developer at BNY Mellon Technology, India. He joined VOILAb as a PhD student in 2022, where his research focuses on manufacturing of miniatuarised drones inspired from the diaspore of the dandelion.
Mridu Sai Charan Aerukalava Seshasayee, PhD Student
Mridu graduated with a Bachelor's degree in Mechanical Engineering in 2021 from PES University, India, where he was awarded the Prof. CNR Rao Scholarship for being in the top 20% of the cohort, and, received distinction awards every semester. He received his Master's degree from Cranfield University, UK, in 2022, during which he worked on a novel approach to evaluate anisotropic turbulence in RANS/URANS turbulence modelling. In addition, for his dissertation, he analysed turbulent reacting flows and evaluated the feasibility of a DNS/LES hybrid solvers for simulating turbulent flame kernels. He is currently undertaking a PhD at VOILAb on Ship Hull Hydrodynamics.
Alumni
Dr Francesca Tagliaferri

Dr Francesca Tagliaferri received her PhD within VOILAb in 2015, where she carried out a project on yacht racing strategy. She has a background in mathematics and her research interests are routing algorithms, time series forecasting and risk modeling. After graduation, Francesca has been Teaching Fellow at the University of Newcastle until she joined the automotive industry in 2017. She is currently Lead Data Analyst at Cummins.
Selected publications
Tagliaferri, F & Viola, IM, 2017, ‘A real-time strategy-decision program for sailing yacht races’, Ocean Engineering, vol 134, pp. 129–139. www.dx.doi.org/10.1016/j.oceaneng.2017.02.026
Tagliaferri, F, Hayes, BP, Viola, IM & Djokic SZ, 2016, ‘Wind modelling with nested Markov chains’, Journal of Wind Engineering & Industrial Aerodynamics, vol 157, pp. 118-124. www.dx.doi.org/10.1016/j.jweia.2016.08.009
Tagliaferri, F, Viola, IM & Flay RGJ, 2015, ‘Wind direction forecasting with artificial neural networks and support vector machines’, Ocean Engineering, vol 97, no. 15, pp. 65–73. www.dx.doi.org/10.1016/j.oceaneng.2014.12.026
Tagliaferri, F, Philpott, AB, Viola, IM & Flay, RGJ, 2014, ‘On risk attitude and optimal yacht racing tactics', Ocean Engineering, vol 90, pp 149-154. www.dx.doi.org/10.1016/j.oceaneng.2014.07.020
PhD Thesis: "Dynamic Yacht Strategy Optimisation," http://hdl.handle.net/1842/16237
Robin Le Mestre

Robin has been a VOILAb visiting student for 10 months from October 2016, while undertaking a Master of Mechanical Engineering at the Ecole Normale Supérieure of Cachan, France. The aim of his project was to enhance the understanding of flexible hydrofoils via numerical simulation and experimentation.
Selected publications
Pisetta, G, LeMestre, R & Viola, IM, 2022, ‘Morphing Blades for Tidal Turbines: a Theoretical Study’, Renewable Energy, vol. 183, pp. 802-819. https://doi.org/10.1016/j.renene.2021.10.085
Dr Cathal Cummins

Cathal is Assistant Professor at Heriot Watt University, and former VOILAb’s Postdoctoral Research Associate. He obtained his BSc in Mathematical Physics from University College Dublin in 2009, an MSc in Mathematical Modelling in 2011 and a PhD in Applied Mathematics in 2014. He is the first author of the VOILAb’s Nature paper (2018; 562:414-418) that reveals the separated vortex ring underlying the flight of the dandelion seed. The article featured in the main press outlets of more than 30 countries, including BBC, The New York Times, and is ranked in the top 1% of all articles of a similar age in any journal for online attentions (https://edin.ac/2w8r4DN). Cummins received several prestigious awards, including the University College Dublin’s Conway Medal in Mathematical Physics. His MSc research was the front cover feature of the American Journal of Physics and was covered by BBC, MSNBC, and the Discovery Channel; whilst his PhD thesis featured as a Research Highlight by the American Institute of Physics.
Selected Publications
Viola, IM, Peterson, B, Pisetta, G, Pavar, G, Akhtar, H, Menolascina, F, Mangano, E, Dunn, K, Gabl, R, Nila, A, Molinari, E, Cummins, C, Thompson, G, Lo M, Denison, F, Digard, P, Malik, O, Dunn, MJG & Mehendale, F, 2021, ‘Face Coverings, Aerosol Dispersion and Mitigation of Virus Transmission Risk’, IEEE Open Journal of Engineering in Medicine and Biology, vol. 2, pp. 26-35. https://doi.org/10.1109/OJEMB.2021.3053215
Cummins, C, Ajayi, OJ, Mehendale, FV, Gabl, R & Viola, IM, 2020, ‘The dispersion of spherical droplets in source-sink flow and their relevance to the COVID-19 pandemic’, Physics of Fluids, vol. 32, no. 8, 08330201-08330213. https://doi.org/10.1063/5.0021427. Paper published as part of the special topic on Flow and the Virus. Selected as Featured Article
Cummins, C, Saele, M, Macence, A, Certini, D, Matropaolo, E, Viola, IM & Nakayama, N, 2018, ‘A separated vortex ring underlies the flight of the dandelion’, Nature, vol 562, pp. 414–418. https://doi.org/10.1038/s41586-018-0604-2
Seale, M, Cummins, C, Viola, IM, Mastropaolo, E & Nakayama, N, 2018, ‘Design principles of hair-like structures as biological machines’, Journal of the Royal Society Interface, vol 15, no. 142, 20180206. http://dx.doi.org/10.1098/rsif.2018.0206
Cummins, C, Viola, IM, Mastropaolo E, and Nakayama, N, 2017, ‘The effect of permeability on the flow past permeable disks at low Reynolds numbers’, Physics of Fluids, vol 29, pp. 097103. www.dx.doi.org/10.1063/1.5001342
Rowan Eveline Muir

Rowan undertook an Master by Research within VOILAb looking at the leading edge vortex as seen in bird and insect flight. In part because it’s fascinating, but also as a potential bio-inspired design optimisation for lift generation in low Reynolds aerodynamics. Since graduated, Rowan has worked in the wind industry, first at Senvion and soon after was appointed successively as WTG Package Manager of the Moray West Wind Farm at Ocean Winds.
Selected Publications
Muir, R, Arredondo-Galeana, A & Viola, IM, 2017, ‘The leading-edge vortex of swift-wing shaped delta wings’, Royal Society Open Science, vol 4, no 8, pp. 170077. www.dx.doi.org/10.1098/rsos.170077
Dr Tamás István Józsa

Tamás is Postdoctoral Research Fellow at the University of Oxford and former VOILAb’s PhD student. He was awarded his PhD in 2018, where he investigated skin friction reduction potential of compliant coatings using high-fidelity CFD techniques.
Selected Publications
Jozsa, TI, Balaras, E, Kashtalyan, M, Borthwick, AGL & Viola, IM, 2019, ‘Active and passive in-plane wall fluctuations in turbulent channel flows’, Journal of Fluid Mechanics, vol. 866, pp. 689-720. https://doi.org/10.1017/jfm.2019.145
Jozsa, TI, Balaras, E, Kashtalyan, M, Borthwick, AGL & Viola, IM, 2020, ‘On the friction drag reduction mechanism of streamwise wall fluctuations’, International Journal of Heat and Fluid Flow, vol. 86, 108686. https://doi.org/10.1016/j.ijheatfluidflow.2020.108686
PhD thesis: :Drag Reduction by Passive In-Plane Wall Motions in Turbulent Wall-Bounded Flows," http://hdl.handle.net/1842/33155
Dr Gabriel Thomas Scarlett

Gabriel is former PhD student within VOILAb, where he quantified the unsteady loads on tidal turbine blades through analytical models. He is currently Numerical Modeller at Mocean Energy.
Selected Publications
Scarlett, TG & Viola IM, 2019, ‘Unsteady hydrodynamics of tidal turbine blades’, Renewable Energy, vol. 146, pp. 843-855. https://doi.org/10.1016/j.renene.2019.06.153
Scarlett, GT, Sellar, B, van den Bremer, T & Viola, IM, 2019, Unsteady hydrodynamics of a full-scale tidal turbine operating in large wave conditions, Renewable Energy, vol. 143, pp. 199-213. https://doi.org/10.1016/j.renene.2019.04.123
PhD thesis: Unsteady Hydrodynamics of Tidal Turbine Blades," http://hdl.handle.net/1842/36125
Dr Abel Arredondo-Galeana

After few years in industry as a wireline field engineer, Abel undertook a master’s degree in Sustainable Energy Systems at the University of Edinburgh (Hons 2014). Successively, he was funded by CoNaCyT to undertake a PhD on yacht sail aerodynamics within VOILAb. He was the first to detect experimentally the leading edge vortex on a yacht sail. After his PhD, he was a Postdoctoral Research Fellow within VOILAb, where he worked on the fluid dynamics of morphing blades to mitigate unsteady loadings on wind and tidal turbines. His specialist expertise includes vortex flow, particle image velocimetry and impulse method. He is currently Research Fellow at Strathclyde University.
Selected Publications
Arredondo-Galeana, A, Kiprakis, A & Viola, IM, 2022 ‘A low cost oscillating membrane for underwater applications at low Reynolds numbers’, Journal of Marine Science and Engineering, vol. 10, no. 1, 77. https://doi.org/10.3390/jmse10010077
Viola, IM, Arredondo-Galeana, A & Pisetta, G, 2021, ‘The Force Generation Mechanism of Lifting Surfaces with Flow Separation’, Ocean Engineering, vol. 239, 109749. https://doi.org/10.1016/j.oceaneng.2021.109749
Arredondo-Galeana, A, Young, AM, Smyth, ASM & Viola, IM, 2021, ‘Unsteady load mitigation through a passive trailing-edge flap,’ Journal of Fluids and Structures, vol. 106, no. 103352. https://doi.org/10.1016/j.jfluidstructs.2021.103352
Souppez, J-BRG, Arredondo-Galeana, A & Viola, IM, 2019. 'Recent advances in numerical and experimental downwind sail aerodynamics', Journal of Sailing Technology, vol. 4, no. 1, pp. 45-65. https://doi.org/10.5957/jst.2019.4.1.45
Arredondo-Galeana, A & Viola, IM, 2018, ‘The leading-edge vortex of yacht sails’, Ocean Engineering - Special Issue: Innovation in High Performance Sailing Yachts - INNOVSAIL, vol 159, pp. 552-562. https://doi.org/10.1016/j.oceaneng.2018.02.029
Muir, R, Arredondo-Galeana, A & Viola, IM, 2017, ‘The leading-edge vortex of swift-wing shaped delta wings’, Royal Society Open Science, vol 4, no 8, pp. 170077. https://doi.org/10.1098/rsos.170077
PhD thesis: "A Study of the Vortex Flows of Downwind Sails," http://hdl.handle.net/1842/36074
Dr Kristin Luttik

Kristin earned a bachelor’s degree in Aerospace Engineering at Delft University of Technology in 2010. After a year of travelling and gaining work experience as an engineering intern, she moved to Scotland to study for her Master’s degree in Sustainable Energy Systems at the University of Edinburgh; which she was awarded with distinction in 2012. Following this she spent the following years in industry, working at EPR Scotland. In 2015 she started working towards her Engineering Doctorate (EngD) with IDCORE and VOILAb on the use of kites for large-scale, subsea, power generation. Her work includes creating an analytical model, and validating this using a scaled physical model of the system. Kristin submitted her PhD thesis in the fall 2020 and was awarded her EngD in 2021. She is currently Technical Operation Engineer at Eversource Energy (www.evensource.com) in Worcester, Massachusetts, United States.
PhD thesis: "Instream Generation Using Tethered Kites in the Carousel Configuration," http://https://hdl.handle.net/1842/37858
Dr Weidong Dai

Weidong undertook a two-plus-two program in 2010. Half of his undergraduate time was spent in Huazhong University of Technology and Science (China), with the other half spent at the University of Birmingham (UK). He was awarded Mechanical Engineering Bachelor's degrees from both universities in 2014. A year later he was awarded a Master’s degree in Advanced Aeronautical Engineering from Imperial College London. After a year at BSH Electrical Appliances as a mechanical engineer, he joined VOILAb to undertake a PhD on tidal turbine unsteady hydrodynamics. His specialist expertise includes high-performance computing and computational fluid dynamics. Weidong was awardedd the PhD in 2021 and is now working at The Innovation Center for New Energy Technologies, CTG Science and Technology Research Institute, China Three Gorges Corporation. Within his new role, Wiidong has recently deployed the first Chinese tidal turbine connected to the grid.
PhD thesis: "Numerical Modelling of Passively Pitching Blades for In-Stream Tidal Turbines," http://dx.doi.org/10.7488/era/1534
Dr Gabriele Pisetta

Gabriele earned a Master degree in Aeronautical Engineering in 2016 at the Politecnico di Milano. In October 2016, Gabriele joined the CDT Wind & Marine Energy Systems led by the University of Strathclyde (Glasgow) and the University of Edinburgh. In October 2017, he started his PhD project within VOILAb on gust alleviation by morphing blades for wind and tidal turbines. The aim of the project was to develop a novel intelligent blade that through a high-frequency morphing will cancel fatigue loads and enhance energy harvested. His specialist expertise includes impulse method and low order models. Gabriele graduated in 2022 and is now Development Engineer Measurement Technology at Winterthur, Zurich, Switzerland.
Selected Publications
Pisetta, G, LeMestre, R & Viola, IM, 2022, ‘Morphing Blades for Tidal Turbines: a Theoretical Study’, Renewable Energy, vol. 183, pp. 802-819. https://doi.org/10.1016/j.renene.2021.10.085
Viola, IM, Arredondo-Galeana, A & Pisetta, G, 2021, ‘The Force Generation Mechanism of Lifting Surfaces with Flow Separation’, Ocean Engineering, vol. 239, 109749. https://doi.org/10.1016/j.oceaneng.2021.109749
Smith, AJ, Pisetta, G & Viola, IM, 2021, ‘The Scales of the Leading-Edge Separation Bubble,’ Physics of Fluids, vol. 33, no. 4, 045101. https://doi.org/10.1063/5.0045204
Viola, IM, Peterson, B, Pisetta, G, Pavar, G, Akhtar, H, Menolascina, F, Mangano, E, Dunn, K, Gabl, R, Nila, A, Molinari, E, Cummins, C, Thompson, G, Lo M, Denison, F, Digard, P, Malik, O, Dunn, MJG & Mehendale, F, 2021, ‘Face Coverings, Aerosol Dispersion and Mitigation of Virus Transmission Risk’, IEEE Open Journal of Engineering in Medicine and Biology, vol. 2, pp. 26-35. https://doi.org/10.1109/OJEMB.2021.3053215
Bandiera L, Pavar G, Pisetta G, Ōtomo S, Mangano E, Seckl JR, Digard, P, Molinari, E, Menolascina, F & Viola, IM, 2020. ‘Face Coverings and Respiratory Tract Droplet Dispersion’, Royal Society Open Science, vol. 7, pp. 201663. https://doi.org/10.1098/rsos.201663
Callum Bruce
Callum received his Master’s degree in Aeronautical Engineering from the University of Glasgow in 2014. In his final year project, he studied the aerodynamic performance of racing bicycles through a program of full scale wind tunnel experiments. Following graduation Callum worked as an Aerodynamicist at Aston Martin Lagonda Ltd. and later joined Altair Engineering helping develop the commercial Discrete Element Method software, Altair EDEM. In October 2020, Callum joined VOILAb and studied the unsteady aerodynamics of free-falling porous flat plates. He was awarded a Master By Research in 2022 and is now Software Developer at Aridhia – Digital Research Environment.
Dr Daniele Certini

Daniele Daniele was awarded a Master’s degree in Aerospace Engineering at the University of Pisa in 2017. He performed his final year project during a six-month internship within VOILAb. He investigated both experimentally and numerically the aerodynamics of the dandelion fruit. For this study (https://doi.org/10.1038/s41586-018-0604-2), he received the Pegasus Award for a Special Achievement through Working Abroad for Academic Research. In September 2017, he started his PhD within VOILAb, where he studied the flight of the diaspores of the Javan cucumber vine (Alsomitra macrocarpa). Alsomitra is one of the few seeds that is dispersed by gliding, and it's aerodynamic efficiency is one of the highest in the plant kingdom. The research involved 3D scans of the diaspores, wind tunnel experiments with PIV at the University of Glasgow, and drop test with 3D traking. Daniele passed his Viva in May 2022 and joined Rival Lab (https://rivallab.com) at Queen's University as Research Associate in August 2022.
Selected Publications
Certini, D, Fazan, L, Nakayama, N, Viola, IM & Kozlowski. G, 2020, ‘Velocity of the falling dispersal units in Zelkova abelicea: remarkable evolutionary conservation within the relict tree genus,’ American Journal of Botany, vol. 107, no. 12, pp. 1-8. https://doi.org/10.1002/ajb2.1581
Cummins, C, Seale, M, Macence, A, Certini, D, Matropaolo, E, Viola, IM & Nakayama, N, 2018, ‘A separated vortex ring underlies the flight of the dandelion,’ Nature, vol 562, pp. 414–418. https://doi.org/10.1038/s41586-018-0604-2