Probabilistic Flux LimitersThe stable numerical integration of shocks in compressible flow simulations relies on the reduction or elimination of Gibbs phenomena (unstable, spurious oscillations). A popular method to virtually…Nga T. T. Nguyen-Fotiadis, Robert Chiodi, Michael McKerns et al.·May 13, 2024SaveLearn
A Deep Learning Approach For Epistemic Uncertainty Quantification Of Turbulent Flow SimulationsSimulations of complex turbulent flow are part and parcel of the engineering design process. Eddy viscosity based turbulence models represent the workhorse for these simulations. The underlying…Minghan Chu, Weicheng Qian·May 13, 2024SaveLearn
Collisions of Burgers Bores with Nonlinear WavesThis paper treats nonlinear wave current interactions in their simplest form, as an overtaking collision. In one spatial dimension, the paper investigates the collision interaction formulated as an…Albert. Dombret, Darryl D. Holm, Ruiao Hu et al.·May 13, 2024SaveLearn
Modeling sea ice in the marginal ice zone as a dense granular flow with rheology inferred from discrete element model dataThe marginal ice zone (MIZ) represents the periphery of the sea ice cover. In this region, the macroscale behavior of the sea ice results from collisions and enduring contact between ice floes. This…Gonzalo G. de Diego, Mukund Gupta, Skylar A. Gering et al.·May 13, 2024SaveLearn
An adjoint-based approach for the surgical correction of nasal septal deviationsDeviations of the septal wall are widespread anatomic anomalies of the human nose; they vary significantly in shape and location, and often cause the obstruction of the nasal airways. When severe,…Marcello Macellari, Andrea Schillaci, Umberto Tanzini et al.·May 13, 2024SaveLearn
Revisiting visualization of spiral states in a wide-gap spherical Couette flowA pioneering study conducted by Egbers and Rath [Acta Mech. 111 pp. 125--140 (1995)] experimentally captured spiral waves to elucidate the transition in the wide-gap spherical Couette flow. However,…Isshin Arai, Tomoaki Itano, Masako Sugihara-Seki·May 13, 2024SaveLearn
Investigate the efficiency of incompressible flow simulations on CPUs and GPUs with BSAMRAdaptive mesh refinement (AMR) is a classical technique about local refinement in space where needed, thus effectively reducing computational costs for HPC-based physics simulations. Although AMR has…Dewen Liu, Shuai He, Haoran Cheng et al.·May 12, 2024SaveLearn
Numerical-experimental estimation of the deformability of human red blood cells from rheometrical dataThe deformability of human red blood cells (RBCs), which comprise almost 99% of the cells in whole blood, is largely related not only to pathophysiological blood flow but also to the levels of…Naoki Takeishi, Tomohiro Nishiyama, Kodai Nagaishi et al.·May 12, 2024SaveLearn
Stability of elastoviscoplastic plane Couette flowSeveral studies have investigated the turbulent flow of elastoviscoplastic (EVP) fluids, which exhibit yield stress in addition to viscoelasticity. The instabilities that could be responsible for the…Ramkarn Patne·May 11, 2024SaveLearn
On linear stability of supersonic flow over a short compression corner at large ramp anglesLinear stability of supersonic flow over a short compression corner with ramp angles 30 and 42 is investigated using Direct Simulation Monte Carlo (DSMC) and Linear Stability Theory (LST) at Mach…Irmak T. Karpuzcu, Vassilis Theofilis, Deborah A. Levin·May 10, 2024SaveLearn
Transmission of a Pressure Signal through a Confined Bubble ArrayPressure changes travel at an infinite sound speed in an incompressible ideal fluid, opposite to what happens in a bubbly liquid, where the presence of bubbles adds compressibility such that the…Edgar Ortega-Roano, Devaraj van der Meer·May 10, 2024SaveLearn
Short-Time Force Response during the Impact of a Droplet with Gas BubblesThe presence of gas or vapour bubbles may strongly influence the forces that occur during the impact of a liquid mass onto a solid. Here, we study this effect numerically, in a well-controlled…Edgar Ortega-Roano, Devaraj van der Meer·May 10, 2024SaveLearn
Transition from laminar to turbulent pipe flow as a process of growing material instabilitiesIn this work, we simulate the transition to turbulence in the pipe flow based on the modified NS theory incorporating the viscous fluid strength in the constitutive equations. The latter concept…Saptarshi Kumar Lahiri, Konstantin Volokh·May 10, 2024SaveLearn
Dispersivity calculation in digital twins of multiscale porous materials using the micro-continuum approachThe micro-continuum method is a novel approach to simulate flow and transport in multiscale porous materials. For such materials, the domain can be divided into three sub-domains depending on the…Julien Maes, Hannah Menke·May 10, 2024SaveLearn
An Efficient Phase-field Framework for Contact Dynamics between Deformable Solids in Fluid FlowElastic contact in hydrodynamic environments is a complex multiphysics phenomenon and can be found in applications ranging from engineering to biological systems. Understanding the intricacies of…Biswajeet Rath, Xiaoyu Mao, Rajeev K. Jaiman·May 9, 2024SaveLearn
Exact solution for heat transfer across the Sakiadis boundary layerWe consider the problem of convective heat transfer across the laminar boundary-layer induced by an isothermal moving surface in a Newtonian fluid. In previous work (Barlow, Reinberger, and…W. Cade Reinberger, Nathaniel S. Barlow, Mohamed A. Samaha et al.·May 9, 2024SaveLearn
Mapping dissolved carbon in space and time: An experimental technique for the measurement of pH and total carbon concentration in density driven convection of CO2 dissolved in waterWe present an experimental technique for determining the pH and the total carbon concentration when CO2 diffuses and flows in water. The technique employs three different pH indicators, which,…Hilmar Yngvi Birggison, Yao Xu, Marcel Moura et al.·May 9, 2024SaveLearn
Instability of a dusty shear flowWe study the instability of a dusty simple shear flow where the dust particles are distributed non-uniformly. A simple shear flow is modally stable to infinitesimal perturbations. Also, a band of…Anu V. S. Nath, Anubhab Roy, M. Houssem Kasbaoui·May 9, 2024SaveLearn
Localization and bistability of bioconvection in a doubly periodic domainA suspension of swimming microorganisms often generates a large-scale convective pattern known as bioconvection. In contrast to the thermal Rayleigh-Benard system, recent experimental studies report…Yoshiki Hiruta, Kenta Ishimoto·May 9, 2024SaveLearn
How a table modulates the risk of airborne transmission between facing individualsAirborne transmission has been recognized as an important route of transmission for SARS-CoV-2, the virus responsible for the COVID-19 pandemic. While coughing and sneezing are spectacular sources of…Oğuzhan Kaplan, Manouk Abkarian, Simon Mendez·May 8, 2024SaveLearn
Application of SPOD to the analysis of sound field of aeroacoustic sourcesSpectral proper orthogonal decomposition (SPOD) is proposed for identification of the multipole structure of aeroacoustic noise sources from far-field measurements. The method is verified via tests…Oleg Bychkov, Georgy Faranosov·May 8, 2024SaveLearn
Trapping and extreme clustering of finitely-dense inertial particles near a rotating vortex pairSmall heavy particles cannot get attracted into a region of closed streamlines in a non-accelerating frame (Sapsis & Haller 2010). In a rotating system, however, particles can get trapped (Angilella…Saumav Kapoor, Divya Jaganathan, Rama Govindarajan·May 8, 2024SaveLearn
A progressive data-augmented RANS model for enhanced wind-farm simulationsThe development of advanced simulation tools is essential, both presently and in the future, for improving wind-energy design strategies, paving the way for a complete transition to sustainable…Ali Amarloo, Navid Zehtabiyan-Rezaie, Mahdi Abkar·May 8, 2024SaveLearn
Stability and dynamics of the laminar flow past rectangular prismsThe laminar flow past rectangular prisms is studied in the space of length-to-height ratio (1 L/H 5), width-to-height ratio (1.2 W/H 5) and Reynolds number (Re 700).…Alessandro Chiarini, Edouard Boujo·May 7, 2024SaveLearn
Oscillating Middle Vehicle in a PlatoonA three-member platoon of Ahmed bodies was studied to investigate the effects of drag variation when the middle member goes out of synchronization and starts to oscillate longitudinally. Oscillations…Aditya Ghawre, Eric Jacuzzi, Kenneth Granlund·May 7, 2024SaveLearn