Ultimate Rayleigh-Bénard turbulence

D Lohse, O Shishkina - Reviews of modern physics, 2024 - APS
Thermally driven turbulent flows are omnipresent in nature and technology. A good
understanding of the physical principles governing such flows is key for numerous problems …

Rayleigh-Bénard convection: The container shape matters

O Shishkina - Physical Review Fluids, 2021 - APS
To study turbulent thermal convection, one often chooses a Rayleigh-Bénard flow
configuration, where a fluid is confined between a heated bottom plate, a cooled top plate of …

Heat transfer enhancement in vertical convection under spatially harmonic temperature modulation

KL Chong, S Qiao, JZ Wu, BF Wang - … Journal of Heat and Mass Transfer, 2024 - Elsevier
In this study, we investigate the impact of spatial temperature modulation on vertical
convection (VC) and analyze how the efficiency of heat transfer varies with modulation …

Flow structure transition in thermal vibrational convection

XL Guo, JZ Wu, BF Wang, Q Zhou… - Journal of Fluid …, 2023 - cambridge.org
This study investigates the effect of vibration on the flow structure transitions in thermal
vibrational convection (TVC) systems, which occur when a fluid layer with a temperature …

[HTML][HTML] An efficient phase-field method for turbulent multiphase flows

HR Liu, CS Ng, KL Chong, D Lohse… - Journal of computational …, 2021 - Elsevier
With the aim of efficiently simulating three-dimensional multiphase turbulent flows with a
phase-field method, we propose a new discretization scheme for the biharmonic term (the …

[HTML][HTML] Turbulent vertical convection under vertical vibration

XQ Guo, BF Wang, JZ Wu, KL Chong, Q Zhou - Physics of Fluids, 2022 - pubs.aip.org
Vertical convection (VC) under the action of vertical vibration in a square cavity has been
investigated using direct numerical simulation. The simulations are conducted with Prandtl …

Designing a convection‐cloud chamber for collision‐coalescence using large‐eddy simulation with bin microphysics

A Wang, M Ovchinnikov, F Yang… - Journal of Advances …, 2024 - Wiley Online Library
Collisional growth of cloud droplets is an essential yet uncertain process for drizzle and
precipitation formation. To improve the quantitative understanding of this key component of …

Abrupt transition from slow to fast melting of ice

R Yang, KL Chong, HR Liu, R Verzicco, D Lohse - Physical Review Fluids, 2022 - APS
How fast ice melts in turbulent flows is key to many natural and industrial processes, most
notably the melting of ice in the polar regions. To get a better quantitative understanding of …

Comprehensive investigation of a novel multi-segment heat exchanger for PCM/MF based ocean thermal engine: Numerical analysis, model reduction and …

Z Yao, Y Chen, G Muhammad, Q **a, C Yang - Applied Thermal …, 2024 - Elsevier
Phase change material/metal foam based exchangers are widely used in thermal energy
storage and ocean engineering. In this paper, a novel heat exchanger called multi-segment …

Dynamics and length scales in vertical convection of liquid metals

L Zwirner, MS Emran, F Schindler, S Singh… - Journal of Fluid …, 2022 - cambridge.org
Using complementary experiments and direct numerical simulations, we study turbulent
thermal convection of a liquid metal (Prandtl number. Furthermore, we present a novel …