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Minimal flow unit of wall-bounded high-pressure transcritical turbulence
(2024-12-01)
Article
Open AccessThe minimum domain size required to maintain fully developed wall-bounded turbulent flow in high-pressure transcritical regimes is analyzed using direct numerical simulations. The computations involve carbon dioxide at ... -
Resolution standards for direct numerical simulation of wall turbulence in high-pressure transcritical fluids
(2024-12-01)
Article
Open AccessThis study investigates the resolution requirements for direct numerical simulation (DNS) of high-pressure transcritical wall-bounded turbulence, focusing on channel and square duct flow configurations subjected to cold ... -
The global flow state in a precessing cylinder
(2024-11-10)
Article
Open AccessWe examine the fluid flow forced by precession of a rotating cylindrical container using numerical simulations and experimental flow measurements with ultrasonic Doppler velocimetry. The analysis is based on the decomposition ... -
Proper orthogonal decomposition of wall-bounded high-pressure transcritical fluids
(2024-10-18)
Article
Open AccessThis study explores the principal modes of high-pressure transcritical channel flow from direct numerical simulation data. The four cases investigated correspond to CO2 at high-pressure conditions (P/Pc=1.5) confined between ... -
Data-driven wall modeling for LES involving non-equilibrium boundary layer effects
(2024-08-26)
Article
Open AccessPurpose Wall-modeled large eddy simulation (LES) is a practical tool for solving wall-bounded flows with less computational cost by avoiding the explicit resolution of the near-wall region. However, its use is limited in ... -
Data fusion uncertainty-enabled methods to map street-scale hourly NO<sub>2</sub> in Barcelona: a case study with CALIOPE-Urban v1.0
(European Geosciences Union (EGU), 2023-04-21)
Article
Open AccessComprehensive monitoring of NO2 exceedances is imperative for protecting human health, especially in urban areas with traffic. However, an accurate spatial characterization of the exceedances is challenging due to the ... -
Impact of coagulation characteristics on the aggregation of microplastics in upper-ocean turbulence
(Elsevier, 2024-11)
Article
Open AccessThe dynamics and aggregation of microplastics in marine environments are investigated through high-fidelity direct numerical simulations with Lagrangian point-particle tracking. The properties of microplastics and biogenic ... -
Microparticle dynamics in upper-ocean turbulence: dataset for analysis, modeling & prediction
(Elsevier, 2024-10)
Article
Open AccessPlastic particle pollution has threatened the well-being of seawater ecosystems over the past decades. Therefore, understanding, modeling and (potentially) predicting the dynamics of microplastics and biogenic particles ... -
Microconfined high-pressure transcritical channel flow database: laminar, transitional & turbulent regimes
(Nature, 2024-08-23)
Article
Open AccessThe potential of comprehending and managing microscale flows to enhance energy processes, especially in heat transfer and propulsion applications, remains largely untapped particularly for supercritical fluids, which have ... -
Data-informed characterization of spatio-temporal scales in experiments of microconfined high-pressure transcritical turbulence
(2024-12)
Article
Open AccessThe spatio-temporal scales of microconfined high-pressure transcritical turbulence are characterized in relation to the resolution capabilities of present time-resolved two-dimensional PIV technology. Utilizing as the ... -
Steady-state modeling of water-splitting and multi-ionic transport of skim milk electro-acidification by bipolar membrane electrodialysis
(Elsevier, 2024-04-17)
Article
Open AccessElectrodialysis has become a relevant technology in promoting sustainability within the food industry. Bipolar membrane electrodialysis offers an efficient and eco-friendly alternative for skim milk acidification, eliminating ... -
Empirical heat transfer correlations of high-pressure transcritical fluids at low Reynolds numbers
(2024-10)
Article
Restricted access - publisher's policyEmpirical heat transfer correlations serve as indispensable tools for predicting and optimizing the thermal performance of a wide range of engineering devices, like for example in energy conversion and propulsion applications. ...
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