Project description DEENESFRITPL Novel turbulent flow modelling strategies For the performance prediction of additive-manufactured heat exchangers, the EU-funded STREAM project will design novel turbulent flow modelling strategies. As regards fluid dynamics, additive manufacturing (AM) often introduces important wall roughness, which impacts heat transfer and pressure loss across the device. To solve this problem, computational fluid dynamics (CFD) models are required to predict the performance of heat exchangers. RANS (Reynolds-Averaged Navier-Stokes) and LES (Large-Eddy Simulation) are two complementary turbulence modelling approaches that are good candidates for addressing such challenges. These models need to be extended and validated for wall roughness generated by AM. STREAM will build a database of high-fidelity roughness-resolving LES that will be analysed to derive well-parametrised statistical wall models with applications in customised heat exchanger designs. Show the project objective Hide the project objective Objective Additive manufacturing (AM) process offers tremendous gains over conventional subtractive manufacturing in heat exchanger design, key issue of thermal engine efficiency. The STREAM project aims at designing novel modeling strategies for the performance prediction of additive-manufactured heat exchangers. The consortium consists in two laboratories CNRS-CORIA and CNRS-LEGI, which have a long experience in high-fidelity multi-physics turbulent flow modeling and TEMISTh, a SME which develops customized solutions for heat exchangers. From the fluid dynamics point of view, AM often introduces important wall roughness, which depends strongly on the manufacturing process itself, and which impacts heat transfer and pressure loss across the device. It is therefore mandatory to design Computational Fluid Dynamics (CFD) models with a sufficient level of accuracy to predict the performances of heat exchangers. RANS (Reynolds-Averaged Navier-Stokes) and LES (Large-Eddy Simulation) are two complementary turbulence modeling approaches that are good candidates for such challenge. In these approaches, wall modeling often relies on statistical analysis, leading to law-of-the-wall models that are widely used in the prediction of internal flows. However, these models need to be extended and validated for wall roughness generated by additive manufacturing. To this aim, STREAM proposes to build a large database of high-fidelity roughness-resolving Large-Eddy Simulations that will be analyzed to derive well-parametrized statistical wall models. An original wall model parametrization will be used that has already been successfully adapted to heat transfers on a turbine blade. The resulting statistical model, usable in both roughness-modeled RANS and LES approaches, will be extensively validated a priori by comparison with the high-fidelity database and a posteriori on classical heat exchanger applications: Fuel-Cooled Oil Cooler, Air-cooled Oil cooler, Surface Air-cooled Oil cooler. Fields of science natural sciencesphysical sciencesclassical mechanicsfluid mechanicsfluid dynamicsengineering and technologymechanical engineeringmanufacturing engineeringadditive manufacturing Programme(s) H2020-EU.3.4. - SOCIETAL CHALLENGES - Smart, Green And Integrated Transport Main Programme H2020-EU.3.4.5.5. - ITD Engines Topic(s) JTI-CS2-2018-CfP09-ENG-01-40 - Turbulence modeling of heat exchangers and roughness impact Call for proposal H2020-CS2-CFP09-2018-02 See other projects for this call Funding Scheme CS2-RIA - Research and Innovation action Coordinator CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Net EU contribution € 390 580,00 Address Rue michel ange 3 75794 Paris France See on map Region Ile-de-France Ile-de-France Paris Activity type Research Organisations Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00 Participants (3) Sort alphabetically Sort by Net EU contribution Expand all Collapse all Third-party Legal entity other than a subcontractor which is affiliated or legally linked to a participant. The entity carries out work under the conditions laid down in the Grant Agreement, supplies goods or provides services for the action, but did not sign the Grant Agreement. A third party abides by the rules applicable to its related participant under the Grant Agreement with regard to eligibility of costs and control of expenditure. INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE ROUEN France Net EU contribution € 16 410,00 Address Avenue de l'université 76 801 Saint etienne du rouvray See on map Region Normandie Haute-Normandie Seine-Maritime Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00 Third-party Legal entity other than a subcontractor which is affiliated or legally linked to a participant. The entity carries out work under the conditions laid down in the Grant Agreement, supplies goods or provides services for the action, but did not sign the Grant Agreement. A third party abides by the rules applicable to its related participant under the Grant Agreement with regard to eligibility of costs and control of expenditure. INSTITUT POLYTECHNIQUE DE GRENOBLE France Net EU contribution € 21 390,00 Address Avenue felix viallet 46 38031 Grenoble cedex 1 See on map Region Auvergne-Rhône-Alpes Rhône-Alpes Isère Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00 TEMISTH SAS France Net EU contribution € 175 900,00 Address Batiment team henri fabre rue jacqueline 13700 Marignane See on map SME The organization defined itself as SME (small and medium-sized enterprise) at the time the Grant Agreement was signed. Yes Region Provence-Alpes-Côte d’Azur Provence-Alpes-Côte d’Azur Bouches-du-Rhône Activity type Private for-profit entities (excluding Higher or Secondary Education Establishments) Links Contact the organisation Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00
