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OpaqueFlows SIGNED

Flows Unveiled: Multimodal Measurement in Opaque Two-Phase Flows

Total Cost €


EC-Contrib. €






 OpaqueFlows project word cloud

Explore the words cloud of the OpaqueFlows project. It provides you a very rough idea of what is the project "OpaqueFlows" about.

difficult    concentration    physics    of    systematically    volume    cosmetics    turn    showing    experiments    exact    model    numerical    quality    useless    tools    ing    industry    modalities    hemodynamics    velocity    first    covers    effect    ray    lift    direct    nearly    models    mechanics    questions    evaluation    renders    heavy    ultrasound    serve    laminar    benchmark    blood    turbulent    dispersed    dredging    nature    pertaining    data    particles    performance    effort    despite    breakthrough    fluid    simulations    combined    opacity    newtonian    food    small    experimental    underlying    give    fractions    flows    archetypical    acquisition    accurately    vital    catalysts    rivers    veil    assessing    little    encountered    techniques    flow    multiphase    magnetic    demanded    moderate    benchmarks    resonance    sediment    examples    impenetrable    relevance    reference    optical    relatively    modal    imaging    accuracy    reactors   

Project "OpaqueFlows" data sheet

The following table provides information about the project.


Organization address
address: STEVINWEG 1
city: DELFT
postcode: 2628 CN

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Netherlands [NL]
 Total cost 1˙955˙112 €
 EC max contribution 1˙955˙112 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-COG
 Funding Scheme ERC-COG
 Starting year 2017
 Duration (year-month-day) from 2017-05-01   to  2022-04-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    TECHNISCHE UNIVERSITEIT DELFT NL (DELFT) coordinator 1˙955˙112.00


 Project objective

Dispersed multiphase flows are encountered in nearly every process in nature and industry; examples include sediment in rivers, catalysts in reactors and blood flow. Despite their relevance, it is currently difficult to accurately and efficiently model these flows. The opacity of the flows, even at moderate volume fractions, renders the common optical flow measurement tools useless. As a result, very little high-quality data is currently available to develop (numerical) models.

In this project, I lift the veil that covers multiphase flows. I do this by bringing together four flow measurement modalities, based on ultrasound, magnetic resonance, X-ray and advanced optical imaging. These are each applied to three benchmark flows, impenetrable to common (optical) techniques. This project will be the first focused effort to systematically apply these techniques to the same three benchmark flows. These benchmarks are: (1) a turbulent flow with heavy particles, (2) a laminar flow with relatively large particles and (3) a laminar flow with small particles showing non-Newtonian behaviour. These three flows represent archetypical flows from nature and industry, each pertaining to particular open questions in the field of fluid mechanics. The combined velocity and concentration field data resulting from this set of experiments will be vital in assessing and improving each of the techniques: direct comparison will allow evaluation of the performance and show the effect of acquisition and processing parameters on the accuracy. Detailed simulations using the exact same conditions will serve as further reference. Combined with the multi-modal experimental data, this will give breakthrough insight in the underlying physics of each of the benchmark flows. This in turn will lead to better multiphase flow models, which are demanded by a wide range of application areas (e.g. process technology, dredging, food and cosmetics industry, and hemodynamics research).


year authors and title journal last update
List of publications.
2019 Saad Jahangir, Evert C. Wagner, Robert F. Mudde, Christian Poelma
Void fraction measurements in partial cavitation regimes by X-ray computed tomography
published pages: 103085, ISSN: 0301-9322, DOI: 10.1016/j.ijmultiphaseflow.2019.103085
International Journal of Multiphase Flow 120 2019-10-07
2018 Saad Jahangir, Willian Hogendoorn, Christian Poelma
Dynamics of partial cavitation in an axisymmetric converging-diverging nozzle
published pages: 34-45, ISSN: 0301-9322, DOI: 10.1016/j.ijmultiphaseflow.2018.04.019
International Journal of Multiphase Flow 106 2019-06-12
2018 Amitosh Dash, Saad Jahangir, Christian Poelma
Direct comparison of shadowgraphy and x-ray imaging for void fraction determination
published pages: 125303, ISSN: 0957-0233, DOI: 10.1088/1361-6501/aaea49
Measurement Science and Technology 29/12 2019-05-23
2018 Willian Hogendoorn, Christian Poelma
Particle-Laden Pipe Flows at High Volume Fractions Show Transition Without Puffs
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.121.194501
Physical Review Letters 121/19 2019-05-03

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