Author, as appears in the article.: Pallares, Jordi; Fabregat, Alexandre
Department: Enginyeria Mecànica
URV's Author/s: Fabregat Tomàs, Alexandre / Pallarés Curto, Jorge María
Keywords: Turbulent natural convection; Thermophoresis; Particle deposition; Brownian motion; Boundary layer
Abstract: © 2020 In this paper we present a model to predict particle deposition velocities on the isothermal walls bounding a turbulent natural convection flow at moderate Rayleigh numbers. The model is based on the laminar mixed convection characteristics of the velocity and thermal boundary layers near the thermally active walls of the cavity. These characteristics are verified with Direct Numerical Simulations reported elsewhere. The model considers the gravity force, the thermophoretic effect and the Brownian diffusion of small particles. The predicted deposition velocities are compared successfully with those obtained with one of the most popular particle deposition models and with experimental measurements reported in the literature and carried out in a cavity with the same thermal boundary conditions as those considered in this study.
Thematic Areas: Thermodynamics; Mechanics; Mechanical engineering; Materiais; Matemática / probabilidade e estatística; Interdisciplinar; Geociências; Fluid flow and transfer processes; Engineering, mechanical; Engenharias iv; Engenharias iii; Engenharias ii; Engenharias i; Condensed matter physics; Ciências biológicas i; Ciências ambientais; Ciências agrárias i; Ciência de alimentos; Biotecnología; Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: alexandre.fabregat@urv.cat; jordi.pallares@urv.cat
Record's date: 2025-01-27
Paper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0017931020336279
Paper original source: International Journal Of Heat And Mass Transfer. 165 (120691): 120691-
APA: Pallares, Jordi; Fabregat, Alexandre (2021). Prediction of particle deposition on the walls of a cubical cavity with differentially heated opposed walls using heat and mass transfer laminar mixed convection boundary layer models. International Journal Of Heat And Mass Transfer, 165(120691), 120691-. DOI: 10.1016/j.ijheatmasstransfer.2020.120691
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Article's DOI: 10.1016/j.ijheatmasstransfer.2020.120691
Entity: Universitat Rovira i Virgili
Journal publication year: 2021
Publication Type: Journal Publications
Repositori URV