HO2PF · High-order two-phase flow modelling
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2022-02-01 → 2025-01-31
- EU contribution
- €246,669
- Participants
- 2
- Scheme
- MSCA-IF
Lines connect the coordinator with its partners.
Results in brief
High-order two-phase flow modelling
Two-phase flows are the flows of two immiscible phases separated by an interface such as, for instance, mixtures of air and water or water and oil. They are ubiquitous in nature and central to many engineering applications, with contributions to key sectors such as energy conversion, transportation, manufacturing, and healthcare. They are also relevant for the study of climate-change and for understanding how diseases spread, e.g., through coughing and sneezing, which can be of incredibly significant public-health impact. Despite their clear importance, our understanding of the complex dynamics of two-phase flows remains limited. Computer-based simulations have played an increasingly important role in providing new insights into these complex dynamics, for instance as viable alternatives to costly experiments, but they are still limited in their scope, flexibility, efficiency, and accuracy. This project was concerned with initiating a shift in the way two-phase flows can be accurately simulated and predicted using computing resources, leveraging the development of a new "high-order" numerical framework. Owing to its high order, the proposed numerical framework exhibits unprecedented convergence properties, i.e., an enhanced ability to produce increasingly better results as more computational resources are thrown at the problem at hand. Notably, this framework is the first of its kind ever to be able to simulate two-phase flows while both exactly conserving the mass of fluid and producing a convergent estimation of the surface-tension force distribution that acts at the interface between the two phases. This was made possible by applying one main conceptual change to the start-of-the-art, that is the replacement of planar local approximations of the interface by curved (quadratic) ones for numerically solving the governing equations of the flow. The superior performance of the newly developed framework has been demonstrated with canonical and physically realistic test-cases of two-phase flows.
Data: CORDIS, © European Union
Project objective
Flows of two immiscible fluids separated by an interface, referred to as ""two-phase flows"", are ubiquitous in nature and central to many engineering applications. They contribute to the underlying principles and processes of a vast range of key sectors such as energy, transportation, manufacturing, and healthcare, and are relevant to the study of climate-change and disease-spreading. Most important to Europe's current challenges, the study of two-phase flows is instrumental in achieving the ""European Green Deal"" objective of reaching carbon-neutrality by 2050. Yet, despite their clear significance, our understanding of two-phase flows remains limited. Recently, computer simulations have become viable alternatives to experiments for their study, but they are still limited in terms of their flexibility, efficiency, and accuracy.The research programme proposed for this fellowship will provide a paradigm shift in the way two-phase flows can be simulated and therefore studied, with the development of the first high-order numerical framework for the accurate solution of their evolution in complex three-dimensional flow domains. This will entail increasing the order of representation of the local numerical approximations of the interface between the two phases, from linear to quadratic. This enhancement will in turn allow the development of high-order numerical schemes for the transport of this interface, and the estimation of the surface-tension force acting on it. These highly accurate schemes will be released to the research community in an open-source library. Not only will this enable the design of the next generation of low-emission energy-conversion technologies, which are crucially needed to reach Europe's environmental targets, but this will also yield substantial advances in manufacturing and health-related applications and in the prediction of climate-change, and will help devising future environmental and public health policies.""
Original text from CORDIS.
Participants
- OTTO-VON-GUERICKE-UNIVERSITAET MAGDEBURG · MagdeburgCoordinatorGermany
- CORNELL UNIVERSITY · IthacaUnited States
Links
Data: CORDIS, © European Union