An English Translation of Gr\"obli's Ph.D. Dissertation: "Specielle Probleme \"uber die Bewegung geradliniger paralleler Wirbelf\"aden"Here we provide a complete English translation of Walter Gr\"obli's 1877 Ph.D. Thesis, together with some notes on the process. The work considers the dynamics of point vortices in a two-dimensional…Roy H. Goodman·Feb 20, 2024SaveLearn
Turbulent boundary layer response to uniform changes of the pressure force contributionWe investigate a turbulent boundary layer (TBL) with uniform pressure force variations, focusing on understanding its response to local pressure force, local pressure force variation (local…Taygun R. Gungor, Ayse G. Gungor. Yvan Maciel·Feb 20, 2024SaveLearn
Energy exchanges between coherent modes in the near wake of a rotor model at different tip speed ratiosIn this work we investigate the spatio-temporal nature of various coherent modes present in a rotor wake using a combination of new PIV experiments and data from Biswas and Buxton (2024). A…Neelakash Biswas, Oliver R. H. Buxton·Feb 20, 2024SaveLearn
Sedimentation dynamics of triply-twisted M\"obius bands: Geometry versus topologyChiral objects have intrigued scientists across several disciplines, including mathematics, crystallography, chemistry, and biology. A M\"obius band, an emblematic chiral structure, can be made by…Nicolas Moreno, David Vazquez-Cortes, Eliot Fried·Feb 20, 2024SaveLearn
G\"ortler number-based scaling of boundary-layer transition on rotating cones in axial inflowThis paper reports on the efficacy of the G\"ortler number in scaling the laminar-turbulent boundary-layer transition on rotating cones facing axial inflow. Depending on the half-cone angle …Sumit Tambe, Kentaro Kato, Zahir Hussain·Feb 20, 2024SaveLearn
A fully-integrated lattice Boltzmann method for fluid-structure interactionWe present a fully-integrated lattice Boltzmann (LB) method for fluid--structure interaction (FSI) simulations that efficiently models deformable solids in complex suspensions and active systems. Our…Yue Sun, Chris H. Rycroft·Feb 20, 2024SaveLearn
Triglobal resolvent-analysis-based control of separated flows around low-aspect-ratio wingsWe perform direct numerical simulations (DNS) of actively controlled laminar separated wakes around low-aspect-ratio wings with two primary goals: (i) reducing the size of the separation bubble and…Jean Hélder Marques Ribeiro, Kunihiko Taira·Feb 19, 2024SaveLearn
A mathematical model for wind-generated particle-fluid flow fields with an application to the helicopter cloud problemWe develop a model for the interaction of a fluid flowing above an otherwise static particle bed, with generally the particles being entrained or detrained into the fluid from the upper surface of…D. J. Needham, S. Langdon·Feb 19, 2024SaveLearn
Insights into the mechanics of pure and bacteria-laden sessile whole blood droplet evaporationWe study the mechanics of evaporation and precipitate formation in pure and bacteria-laden sessile whole blood droplets in the context of disease diagnostics. Using experimental and theoretical…Durbar Roy, Sophia M, Kush K Dewangan et al.·Feb 19, 2024SaveLearn
Experimental study of aerosol deposition in distal lung bronchiolesThe deposition of micron particles finds importance in meteorology and several engineering applications such as deposition of dust in gas lines, carbon deposition in engine exhaust, designing…Arnab Kumar Mallik·Feb 19, 2024SaveLearn
Tones and upstream-travelling waves in ideally-expanded round impinging jetsWe study the generation of tones by ideally-expanded round jets impinging on a flat plate. Data from large-eddy simulations performed for different nozzle-to-plate distances is explored, and we…Igor A. Maia, Maxime Fiore, Romain Gojon·Feb 19, 2024SaveLearn
Thermal Stress Analysis of the LNG Corrugated Cryogenic Hose During Gas Pre-Cooling ProcessIn this study, thermal-fluid-solid coupled simulations on the gas-phase pre-cooling operation of the corrugated cryogenic hoses were performed. Attention was focused on the temporal evolution and…Miaoer Liu, Fangqiu Li, Hao Cheng et al.·Feb 19, 2024SaveLearn
Influence of relaxation on filtering microflows under harmonic action on the layerThe research deals with the studies of the velocity fields of non-equilibrium fluid filtration in a layer under harmonic action on it and assessment of the influence of relaxation effects on the…I. I. Denysiuk, I. A. Skurativska, I. V. Bielinskyi et al.·Feb 18, 2024SaveLearn
Informative and non-informative decomposition of turbulent flow fieldsNot all the information in a turbulent field is relevant for understanding particular regions or variables in the flow. Here, we present a method for decomposing a source field into its informative…Gonzalo Arranz, Adrian Lozano-Durán·Feb 18, 2024SaveLearn
A Simple Boundary Condition Regularization Strategy for Image Velocimetry Based Pressure Field ReconstructionWe propose a simple boundary condition regularization strategy to reduce error propagation in pressure field reconstruction from corrupted image velocimetry data. The core idea is to replace the…Connor Pryce, Lanyu Li, Jared P. Whitehead et al.·Feb 17, 2024SaveLearn
Experimental control of Tollmien-Schlichting waves using the Wiener-Hopf formalismReactive flow control has been shown as a promising tool to improve, among other aspects, the aerodynamic characteristics of an aircraft. This paper focuses on the use of reactive flow control to…Diego B. S. Audiffred, André V. G. Cavalieri, Pedro P. C. Brito et al.·Feb 16, 2024SaveLearn
Reactive experimental control of turbulent jetsWe present an experimental study of reactive control of turbulent jets. We target axisymmetric disturbances associated with coherent structures, which are known to underpin the peak sound radiation…Diego B. S. Audiffred, André V. G. Cavalieri, Igor A. Maia et al.·Feb 16, 2024SaveLearn
Inertia-gravity waves in geophysical vorticesPancake-like vortices are often generated by turbulence in geophysical flows. Here, we study the inertia-gravity oscillations that can exist within such geophysical vortices, due to the combined…Jérémie Vidal, Yves Colin de Verdière·Feb 16, 2024SaveLearn
Asymptotic analysis of mixing in stratified turbulent flows, and the conditions for an inertial sub-rangeIn an important study, Maffioli et al. (J. Fluid Mech., Vol. 794 , 2016) used a scaling analysis to predict that in the weakly stratified flow regime Frh1 (Frh is the horizontal Froude…Andrew D. Bragg, Stephen M. de Bruyn Kops·Feb 16, 2024SaveLearn
A 3D phase-field based Eulerian variational framework for multiphase fluid-structure interaction with contact dynamicsUsing a fixed Eulerian mesh, the phase-field method has been successfully utilized for a broad range of moving boundary problems involving multiphase fluids and single-phase fluid-structure…Xiaoyu Mao, Rajeev Jaiman·Feb 15, 2024SaveLearn
Turbulent activity in the near-wall region of adverse pressure gradient turbulent boundary layersTwo direct numerical simulation (DNS) databases are investigated to understand the effect of the outer-layer turbulence on the inner layer's structures and energy transfer mechanisms. The first DNS…Taygun R. Gungor, Yvan Maciel, Ayse G. Gungor·Feb 15, 2024SaveLearn
Experimental study of cavitation development in liquid in pulsed non-uniform electric field under the action of ponderomotive forcesIn this paper, the Rayleigh scattering method is used to study the formation of cavitation in water in a pulsed inhomogeneous electric field when a nanosecond high voltage pulse is applied to a…Andrey Yu. Starikovskiy, Mikhail N. Shneider·Feb 15, 2024SaveLearn
Linear and nonlinear receptivity mechanisms in boundary layers subject to free-stream turbulenceLarge-eddy simulations of a flat-plate boundary layer, without a leading edge, subject to multiple levels of incoming free stream turbulence are considered in the present work. Within an input-output…Diego C. P. Blanco, Ardeshir Hanifi, Dan S. Henningson et al.·Feb 15, 2024SaveLearn
A coupled VOF/embedded boundary method to model two-phase flows on arbitrary solid surfacesWe present an hybrid VOF/embedded boundary method allowing to model two-phase flows in presence of solids with arbitrary shapes. The method relies on the coupling of existing methods: a geometric…Mathilde Tavares, Christophe Josserand, Alexandre Limare et al.·Feb 15, 2024SaveLearn
Drag coefficient for irregularly shaped grains: rotational dependence at high Reynolds numbersThe nature and behaviour of the drag coefficient of irregularly shaped grains within a wide range of Reynolds numbers is discussed. Using computational fluid dynamics (CFD) tools, the behaviour of…Álvaro Vergara, Deheng Wei, Raúl Fuentes·Feb 15, 2024SaveLearn