LES of natural convection along a side-heated vertical wall in a water cavity applied for the scale of Small Modular Reactor (Ra≈ 1015)

S Yang, U Bieder, E Studer - Nuclear Engineering and Design, 2023 - Elsevier
The passive safety concept of Small Modular Reactors (SMR) is based on the transfer of
residual heat from the reactor to a water pool. Since the height of the reactor vessel reaches …

Large-scale motions in a turbulent natural convection boundary layer immersed in a stably stratified environment

KR Maryada, SW Armfield, P Dhopade… - Journal of Fluid …, 2023 - cambridge.org
This study investigates the coherence of turbulent fluctuations in a turbulent vertical natural
convection boundary layer immersed in a stably stratified medium (turbulent buoyancy …

[HTML][HTML] RANS thermal modelling of a natural convection boundary layer at low Prandtl number

AV Ortiz, L Koloszar - Computers & Fluids, 2023 - Elsevier
The present work evaluates the performance of different RANS turbulence models in a
natural convection boundary layer at three different Prandtl numbers: 0.71, 0.2 and 0.025 …

Scaling high Rayleigh number natural convection boundary layer statistics: A vertical water tunnel experiment

K Nakao, Y Hattori, H Suto, H Takimoto, Y Niida - Physics of Fluids, 2023 - pubs.aip.org
ABSTRACT A high Rayleigh number natural convection boundary layer adjacent to the
vertical heated wall was investigated at a large-scale facility. The global Rayleigh number …

The turbulence development of a vertical natural convection boundary layer

J Ke, N Williamson, SW Armfield… - Journal of Fluid …, 2023 - cambridge.org
Results from direct numerical simulations of a vertical natural convection boundary layer
(NCBL) with of the NCBL would follow a fundamentally different trend to the canonical wall …

3D LES of natural convection in the side-heated vertical wall with cryogenic helium up to Ra≈ 1015

S Yang, R Nop, A Girard, D Duri, E Studer - Progress in Nuclear Energy, 2024 - Elsevier
The passive safety concept of Small Modular Reactors (SMR) is based on the extraction of
residual heat from the reactor to a surrounding water pool. However, the large scale of the …

Law of the wall for a temporally evolving vertical natural convection boundary layer

J Ke, N Williamson, SW Armfield, SE Norris… - Journal of Fluid …, 2020 - cambridge.org
The present study concerns a temporally develo** parallel natural convection boundary
layer with Prandtl number the velocity profile is expected to become asymptotic to …

Numerical investigation of a spatially develo** turbulent natural convection boundary layer along a vertical heated plate

K Nakao, Y Hattori, H Suto - International Journal of Heat and Fluid Flow, 2017 - Elsevier
Large-eddy simulation (LES) on a spatially develo** natural convection boundary layer
along a vertical heated plate was conducted. The heat transfer rate, friction velocity, mean …

High Grashof number turbulent natural convection on an infinite vertical wall

J Ke, N Williamson, SW Armfield, A Komiya… - Journal of Fluid …, 2021 - cambridge.org
The present study concerns a temporally evolving turbulent natural convection boundary
layer (NCBL) adjacent to an isothermally heated vertical wall, with Prandtl number 0.71 …

Non-Oberbeck–Boussinesq effects on the linear stability of a vertical natural convection boundary layer

J Ke, SW Armfield, N Williamson - Journal of Fluid Mechanics, 2024 - cambridge.org
Non-Oberbeck–Boussinesq effects on the linear stability of a vertical natural convection
boundary layer Page 1 J. Fluid Mech. (2024), vol. 988, A44, doi:10.1017/jfm.2024.478 Non-Oberbeck–Boussinesq …