Project description
Non-optical methods to view inertial dense suspension flow
Inertial dense suspensions, found in blood flow, recycling, and energy storage, are crucial yet poorly understood, leading to 30-40 % inaccuracies in predicting pressure drops in pipe flows. These suspensions do not conform to conventional flow categories, and existing models do not apply to real-world conditions. Particle interactions cause complex behaviours that significantly impact flow characteristics. The ERC-funded IDeS project will systematically investigate the flow behaviours of suspensions, which have been challenging to study due to their opacity. It will use advanced non-optical methods like ultrasound and MRI. By combining unique experimental facilities with simulations, it aims to generate essential data and explore the underlying physics. This research seeks to develop a comprehensive model and formulate predictive rules.
Objective
Inertial Dense Suspensions are very common in nature and industry, with examples including blood flow, recycling, waste slurry transport, additive manufacturing, and energy storage solutions. While they are of great practical importance, these suspension flows are poorly understood. A direct consequence is that we cannot predict even the most basic properties of these flows with sufficient accuracy. For instance, the current best models over- or underestimate the measured pressure drop in a suspension pipe flow by 30-40% for various flow rates. This means that designing or controlling these flows is difficult, as there is no reliable relation between the flow rate and pressure difference (i.e. pumping power) for a given suspension.
Our inability to predict these flows stems in part from the fact that they defy the conventional dichotomy of ‘laminar’ versus ‘turbulent’ flow; they inhabit a terra incognita. Most theoretical studies so far have been limited to confined suspensions in the viscous regime. In the applications mentioned, this idealized approach is not valid: Due to the finite size and velocity of the suspended particles, several inertial phenomena occur, such as particle-induced fluctuations, a gradual transition to turbulence, and shear-induced migration. These are at best only qualitatively understood, yet they dramatically alter the flow behavior.
We can only now start investigating these flows systematically. The opacity of suspensions severely limited our ability to obtain experimental data using conventional flow measurement techniques. In recent years, I pushed the capabilities of non-optical techniques (e.g. ultrasound, MRI), which have opened up this important field. Using unique experimental facilities supplemented with resolved simulations, I will obtain the much-needed data and study the fundamental physics involved in this problem. I will use this to construct a comprehensive conceptual model and then reduce it to formulate predictive rules.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology environmental engineering waste management waste treatment processes recycling
- natural sciences physical sciences acoustics ultrasound
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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HORIZON.1.1 - European Research Council (ERC)
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(opens in new window) ERC-2024-ADG
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2628 CN DELFT
Netherlands
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