98%
921
2 minutes
20
This paper explores the capabilities of iceAccretionFoam, an innovative solver developed on top of the Foam-extend 5.0 code, for computing icing in two-dimensional domains, performed on a NACA0012 airfoil. The study presents droplet transport carried out by an incompressible unsteady Reynolds-averaged Navier-Stokes equation to determine Eulerian droplet flow. The results demonstrate the ability of the software to estimate pressure coefficient, collection efficiency and rime ice shape, indicating its potential use in icing simulations. Furthermore, the paper investigates the effect of different numerical schemes, linear solvers and turbulence models on the numerical results. The rime ice occurs only through accretion, excluding thermodynamic processes, accounting for ice growth effects with the immersed boundary method. The results exhibited consistency with the NASA experiments.This article is part of the theme issue 'Heat and mass transfer in frost and ice.'
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1098/rsta.2024.0362 | DOI Listing |
Sensors (Basel)
July 2025
InViLab Research Group, Department of Electromechanical Engineering, Faculty of Applied Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium.
Ice formation on critical infrastructure such as wind turbine blades can lead to severe performance degradation and safety hazards. This study investigates the use of hyperspectral imaging (HSI) combined with machine learning to detect and classify ice on various coated and uncoated surfaces. Hyperspectral reflectance data were acquired using a push-broom HSI system under controlled laboratory conditions, with ice and rime ice generated using a thermoelectric cooling setup.
View Article and Find Full Text PDFPhilos Trans A Math Phys Eng Sci
July 2025
Department of Physics, Cambridge University, Cambridge, Cambridgeshire, UK.
This paper presents a three-dimensional ice accretion tool for rime and glaze ice types, developed based on foam-extend 5.0, in a new solver for icing applications: iceAccretionFoam. The purpose of this paper is to analyse the hydrodynamics of water films using the finite-area method, rough turbulent heat transfer modelling, the immersed boundary method to change the geometry, flow-ice shape interaction, impingement by Eulerian formulation and external flow solutions with the compressible solver rhoPimpleFoam.
View Article and Find Full Text PDFPhilos Trans A Math Phys Eng Sci
July 2025
Department of Physics, Cambridge University, Cambridge, Cambridgeshire, UK.
This paper explores the capabilities of iceAccretionFoam, an innovative solver developed on top of the Foam-extend 5.0 code, for computing icing in two-dimensional domains, performed on a NACA0012 airfoil. The study presents droplet transport carried out by an incompressible unsteady Reynolds-averaged Navier-Stokes equation to determine Eulerian droplet flow.
View Article and Find Full Text PDFPhilos Trans A Math Phys Eng Sci
July 2025
Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA.
We analyse the Messinger/Myers model by critically evaluating simplifying assumptions through a rigorous formulation of the rime ice accretion process. We explore the effects of both constant and variable ice density and thermal conductivity, along with the effects of sublimation from the ice surface. The effects of key factors such as droplet impact rate, ambient temperature relative to the freezing temperature and the temperature difference between the ambient air and the airfoil surface are examined.
View Article and Find Full Text PDFAdv Mater
June 2025
Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, ON, M5S 3G8, Canada.
Triboelectric nanogenerators (TENGs) have significant potential to perform as sensors or compact electric power generators through the production of electrical charge during the frictional interactions between two dissimilar materials, such as liquids impacting solids. However, whether phase transitions generate a triboelectric response is not known. This study investigates the occurrence of triboelectrification during the water-ice phase transition using TENGs for real-time ice detection on critical engineering surfaces such as aircraft, wind turbine blades, and vehicles.
View Article and Find Full Text PDF