Phd Student - Hynoise Doctoral Candidate (Dc3): Large Eddy Simulations Of Hydrogen-Air Combustion Dy (Lazio)

Phd Student - Hynoise Doctoral Candidate (Dc3): Large Eddy Simulations Of Hydrogen-Air Combustion Dy (Lazio)

03 nov
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Polytechnic University Of Bari
|
Lazio

03 nov

Polytechnic University Of Bari

Lazio

Organisation/Company Polytechnic University of Bari Research Field Engineering » Aerospace engineering Engineering » Mechanical engineering Engineering » Simulation engineering Physics » Applied physics Researcher Profile First Stage Researcher (R1) Positions PhD Positions Application Deadline 31 Dec *********:59 (Europe/Rome) Country Italy Type of Contract Temporary Job Status Full-time Is the job funded through the EU Research Framework Programme? Horizon Europe - MSCA Is the Job related to staff position within a Research Infrastructure? No
Offer Description
About HyNOISE
HyNOISE is a Doctoral Network aimed to train doctoral candidates able to face current and future challenges in the prediction and control of direct and indirect noise generated by hydrogen flames. Four specific research objectives will be pursued:
Unveil the dynamics and sound pressure level generated during unsteady ignition and flashback process
Investigate the direct broadband sound generated due to the coupling between unsteady flame dynamics and flame-flame interactions, hydrodynamic and thermo- diffusive instabilities, and turbulence.
Understand physical mechanisms leading to the onset of thermoacoustic instabilities coupled with different modes at either with a specific focus on high frequencies
Study the contribution of convective waves to combustion noise and thermoacoustic instabilities. Multiple hydrogen-air archetypes typical of air-breathing hydrogen combustion systems in both single and annular multi-injector configurations will be investigated. In a collaborative partnership between academic and industry partners who are major European gas turbine manufacturers, HyNOISE bring relevant expertise together and to pursue solutions for hydrogen through integration and combination of unique and advanced theoretical, high-fidelity modelling and experimental expertise. This will lead to the development of new models and tools able to correctly predict hydrogen flame dynamics and its resulting pressure field, and, on this basis, developing control and mitigation methods to overcome current limitations in hydrogen combustion systems and design innovative, quiet, and stable combustion devices. The technologies developed will stimulate the green transition in the power generation and transport sectors, thus contributing to the achievement of the EU's challenging decarbonization goals.
About the host organization
CERFACS (Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique) is a private research organization developing advanced methods for the numerical simulation and the algorithmic solution of large scientific and technological problems of interest for research as well as industry.
That requires access to the most powerful computers presently available. CERFACS is supported by seven shareholders (AIRBUS, Météo-France, EDF, CNES, SAFRAN, ONERA and TOTAL). It hosts several scientific teams covering several topics (climatology, fluid mechanics, parallel algorithms...) among which the CFD (Computational Fluid Dynamics) team is the largest. The main fields of application of the CFD team are turbulent, unsteady and reacting flows. It has an internationally recognized expertise in combustion and aerospace propulsion.
The team has developed software to compute turbulent flows for aerospace, safety, pollution problems and these codes are used today by numerous research groups in Europe and in industry. CERFACS is one of the first research institutes to have developed the capability to simulate complex turbomachinery stages with high-fidelity methods such as Large-Eddy Simulations. CERFACS has taken part in more than 30 French National projects and 15 European projects.
CERFACS possesses its own computational machines and is used to be selected to compute on Euro-HPC JU supercomputers ( ).
Individual Research Project (IRP)




LES of turbulent reacting flows is a reliable and relevant tool to predict thermoacoustic instabilities of combustors operated with conventional fuels. LES allows to account for the entire complexity of the problem including the geometry, the compressible nature of the fluid dynamics and the flame/turbulence interactions. While validated for conventional fuels, burning H2 induces complex and new physical interactions. These new features require fundamental improvement of existing modelling strategies routinely used for kerosene or carbonated fuels. These new models will be validated for burners where high frequency modes appear: azimuthal modes in the MICCA combustor and high-frequency screech modes in the HYLON chamber of IMFT. The PhD student will be supervised by Dr.-HdR Thierry Poinsot, Dr.-HdR Laurent Gicquel and Dr.-HdR Guillaume Daviller.
Research Objectives
Specific modelling to consider hydrogen differential diffusion effects and intrinsic instabilities will be implemented in the AVBP solver (in collaboration with DC9 activities) and tested in annular combustion chambers.
Conjugate Heat Transfer (CHT-LES) simulations will be performed coupling AVBP with the thermal solver AVTP for the MICCA and HYLON chambers.
LES of thermoacoustic unstable configuration of the MICCA and HYLON combustors will also be performed to assess the models to predict acoustic/flame coupling mechanisms at high frequencies.
Tonal/broadband combustion noise emitted by a Safran engine will be studied to prove the transferability of developed models to industrial configurations.
Chemical reduction of the reacting mixture will be done using Cantera ( . fr/cantera/) and
Development and validation of H2 sub-grid models.
Light-around of MICCA and IMFT combustion chambers. Impact of heat transfer (conduction, convection, and radiation).
LES of self-sustained instabilities of MICCA and HYLON.
Study of tonal and broadband noise emitted by an industrial engine.
Secondments
EM2C Laboratory (France, ca. 2 months): experiments on MICCA
IMFT Laboratory (France, ca. 3 months): experiments on HYLON
Safran Aircraft Engines (France, ca. 3 months): prediction of noise of a Safran engine
The IRP will have a strong link to other IRPs from different DCs for:
Work on hydrogen flames control strategies
Work on numerical/experimental studies
Provision of input and data
Requirements
Research Field Engineering » Mechanical engineering Education Level Master Degree or equivalent
Research Field Engineering » Aerospace engineering Education Level Master Degree or equivalent
Research Field Physics » Applied physics Education Level Master Degree or equivalent
Skills/Qualifications
Essential skills and requirements
MSc or equivalent in the field of aerospace engineering, physics or similar
Solid knowledge in Combustion, Fluid Mechanics, Compressible Turbulence and Computational Fluid Dynamics. Ability to work efficiently and self-reliantly in a diverse inter-disciplinary and multi-cultural environment.
Ability to work in a team as well as independently.
Ability to solve complex problems with adherence to strict deadlines.
Excellent communication skills (both written and verbal) in English to derive the full agevolazioni from the network training.
As secondments and events are foreseen, applicants must be ready to travel.
Knowledge in Applied Mathematics, Computer Sciences (Numerical Analysis), programming tools (Fortran, C++, Python).
Project management.
Knowledge of the host institution language is a plus.
Specific Requirements




Applicants can be of any nationality.
Candidates may apply prior to obtaining their master's degree, but cannot receive an employment contract before having obtained the master degree.
Candidates may apply to multiple positions offered within HyNOISE, but should carefully choose the ones that they apply for.
In addition:
Horizon Europe MSCA Mobility Rule: Researchers must not have resided or carried out their main activity (work, studies, etc.) in the country of the host organization (France) for more than 12 months in the 36 months immediately before the recruitment date – unless as part of a compulsory national service or a procedure for obtaining refugee status under the Geneva Convention.
Horizon Europe MSCA Eligibility Criteria: Doctoral Candidates (DC) must, at the date of recruitment by the host organization, have not been awarded a doctoral degree.
Applicants who do not fulfill the Mobility Rule and the Eligibility Criteria CANNOT be considered for the research position.
Languages ENGLISH Level Excellent
Additional Information
You will be working within our international group of > 30 researchers with experience in a broad range of sciences.
You will get in contact with the other members of this international consortium.
You will benefit from the well-structured training program offered by the host institution and the HyNOISE consortium to develop skills and thorough understanding of space transportation systems and their environmental impact.
You will be employed by the host organization for 36 months.
You will participate in international conferences and secondments to other organizations within the HyNOISE network and in outreach activities targeted at a wide audience.
A competitive salary according to MSCA regulations (see page 118ff.), including a living allowance, a mobility allowance and, if eligible, a family allowance. The stated allowances represent the gross funding amounts. Employer contributions to social security, health insurance, and other statutory costs will be deducted in accordance with the applicable national regulations.
For the selection procedure, the HyNOISE consortium will appoint a Recruitment Committee (RC) for each position. The selection will be carried out in two consecutive stages. In the primary selection, the RC evaluates all submitted application documents. Eligible candidates of sufficient quality will be shortlisted. In the final selection, short-listed applicants are invited to interviews, held either in person at the host institution or via video-conference, and to complete a position-specific task.
Both interviews and tasks are evaluated against predefined criteria, leading to a ranked list of candidates. Final decisions are made by consensus within the RC. Applicants will be informed about rejection or admission to the interview stage by the end of January ****. The employment and relocation phase will then start immediately, allowing sufficient time for contracting, visa applications, and relocation before the official start of the DC projects by October ****.
Additional comments
Expected starting date: January - October ****
Applications and enclosures received after the deadline will not be considered.
More information and other vacant positions can be found at:
Reference to data protection: The personal data you submit will be processed at POLIBA in accordance with its Data Protection Declaration ( ). In addition, your personal data will be shared with the consortium partners (see ) for the purpose of evaluating your application and carrying out the joint selection procedure. The project partners are joint responsible for the processing of personal data.
We in the HyNOISE consortium value diversity and we commit to equal treatment of all applicants irrespective of gender, sexuality, health status as well as social, cultural or religious background.

📌 Phd Student - Hynoise Doctoral Candidate (Dc3): Large Eddy Simulations Of Hydrogen-Air Combustion Dy (Lazio)
🏢 Polytechnic University Of Bari
📍 Lazio

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