PSI - Issue 73

First page Table of contents Previous page 108 Next page Last page

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2025) 000–000 ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2025) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 73 (2025) 106–111

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers 2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers 1. Introduction This paper focuses on the numerical solution of convective heat transfer from the surface of a structural element placed on a heated plate. The temperature and velocity fields of the air above the heated wall of the element are monitored. The investigation of the convective heat transfer in building walls with respect to various parameters such as building orientation, velocity and temperature of fluid flow, different facade surfaces, surface temperature and many other parameters has been the subject of research for many years, both experimentally and numerically. This numerical study deals with a similar problem solved experimentally and published in the (Kočí et al., 2025), which presents the experimental investigation of the heat transfer properties of building envelopes, with a special focus on 23rd International Conference on Modelling in Mechanics 2025 Numerical Analysis of Heat Transfer in the Surface Boundary Layer Vladimira Michalcova a,* , Ivan Kolos a , Lenka Lausova a a Department of Structural Mechanics, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic Abstract Energy efficiency is one of the main focuses in civil engineering, and in recent decades it has become increasingly relevant due to concerns about the living environment. The presented work focuses on the numerical solution of the heat transfer of the building surface, which is represented here by a planar structural element placed on a heated plate under real weather conditions. The 2D problem is solved as an incompressible non-isothermal air flow using CFD codes in the Ansys Fluent 2023 R2 software. The turbulent statistical RANS model Standard k-  is used for the calculation, which includes modifications for the boundary layer solution. The work solves the convective heat transfer from the surface of the heated element. The calculations are performed for two air velocities. The temperature and velocity fields in the area above the heated wall are monitored. 23rd International Conference on Modelling in Mechanics 2025 Numerical Analysis of Heat Transfer in the Surface Boundary Layer Vladimira Michalcova a,* , Ivan Kolos a , Lenka Lausova a a Department of Structural Mechanics, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic Abstract Energy efficiency is one of the main focuses in civil engineering, and in recent decades it has become increasingly relevant due to concerns about the living environment. The presented work focuses on the numerical solution of the heat transfer of the building surface, which is represented here by a planar structural element placed on a heated plate under real weather conditions. The 2D problem is solved as an incompressible non-isothermal air flow using CFD codes in the Ansys Fluent 2023 R2 software. The turbulent statistical RANS model Standard k-  is used for the calculation, which includes modifications for the boundary layer solution. The work solves the convective heat transfer from the surface of the heated element. The calculations are performed for two air velocities. The temperature and velocity fields in the area above the heated wall are monitored. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the event organizers © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 23rd International Conference on Modelling in Mechanics 2025 organizers Keywords: convective heat transfer; RANS model Standard k-  ; CFD modelling 1. Introduction This paper focuses on the numerical solution of convective heat transfer from the surface of a structural element placed on a heated plate. The temperature and velocity fields of the air above the heated wall of the element are monitored. The investigation of the convective heat transfer in building walls with respect to various parameters such as building orientation, velocity and temperature of fluid flow, different facade surfaces, surface temperature and many other parameters has been the subject of research for many years, both experimentally and numerically. This numerical study deals with a similar problem solved experimentally and published in the (Kočí et al., 2025), which presents the experimental investigation of the heat transfer properties of building envelopes, with a special focus on Keywords: convective heat transfer; RANS model Standard k-  ; CFD modelling

Made with FlippingBook - Online Brochure Maker