PhD student – HyNOISE Doctoral Candidate: Combustion noise from/Air flames and dynamics dur
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 2026 - 23:59 (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: 1) Unveil the dynamics and sound pressure level generated during unsteady ignition and flashback process 2) 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. 3) Understand physical mechanisms leading to the onset of thermoacoustic instabilities coupled with different modes at either with a specific focus on high frequencies 4) 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
The EM2C (Energétique, Moléculaire et Macroscopique, Combustion) is a laboratory of the CNRS (CNRS UPR 288) located in CentraleSupélec (CS), which is part of the Université Paris-Saclay. It comprises about 100 people and focuses on the topics of combustion, plasmas, and heat and mass transfer. The team involved in the project is the combustion dynamics team created under the impulse of Prof. Sébastien Candel, renowned expert in the field of combustion instabilities. The team’s efforts focus on the experimental analysis and the reduced-order modelling of flame and combustor dynamics in configurations that are relevant for the fields of aerospace and energy production.
Individual Research Project (IRP)
The project aims to investigate noise radiated by confined H2-Air flames, light round ignition dynamics of these flames and combustion instabilities coupled by azimuthal modes in an annular configuration. The injector that will be used employs crossflow injection of hydrogen in a swirled air flow. Investigations of the noise emitted by H2-air combustion will be performed in the single injector setup called SICCA. Since it is possible to operate the rig with conventional hydrocarbons in premixed (for gaseous fuels) or spray (for liquid fuels) mode while keeping the same general injector geometry, comparisons will be carried out to highlight the specificities of the noise from hydrogen combustion.
Flame Transfer functions and their weakly nonlinear extension in the form of Flame Describing functions will be measured and will also serve as an input for the third part of the proposed work, which aims to predict the stability of the annular chamber MICCA. The ignition dynamics of the annular chamber MICCA when operated with hydrogen will also be studied. Previous investigations have indeed shown that the light-round phase of the ignition process gives rise to a pressure excursion and a subsequent flashback of the flame into the injector. Because of the high burning velocity of hydrogen, one may expect that this phenomenon will occur as well in the present case. This will be studied using dynamic pressure sensors to record the pressure wave induced by ignition in combination with high-speed imaging of the flame during this process. The third goal is to investigate self-excited dynamics of the annular chamber under different operating conditions. Previous studies have shown that, depending on the operating point, combustion can be stable or unstable, and in the latter case be coupled with azimuthal modes that can be spinning, standing or of mixed type. Preliminary investigations have shown that, when operated with hydrogen, high-order azimuthal modes, characterized by high frequencies, can be triggered. To investigate these phenomena, pressure fluctuation and heat release rate measurements will be carried out and coupled with LOM analytical models to develop predictive tools and find ways of reducing azimuthal combustion instabilities.
Research Objectives
Measure combustion noise in the single injector test rig SICCA and compare with hydrocarbon flames.
Measure the Flame Transfer Functions of H2-Air flames in SICCA, targeting high frequencies.
Perform experiments on ignition dynamics with hydrogen with a focus on pressure excursion.
Measure stability maps of MICCA in a broad operating domain.
Combine the previous results into a reduced order model to investigate predictive capabilities.
Expected Results
Spectral signatures of H2-Air flame in SICCA and comparison to those of conventional hydrocarbons. Flame Transfer Functions will be documented.
Measurements of the pressure excursion during ignition of the MICCA chamber.
Stability map of the MICCA annular test rig burning hydrogen. A stability analysis will be carried out in parallel thanks to a data-driven low order analytical model leveraging flame describing functions and injection unit impedances measured on separate rigs.
Secondments
Technical University of Berlin (Germany, ca. 2 months): develop the LOM for stability analyses in annular combustion chambers.
Czestochowa University of Technology (Poland, ca. 3 months): exchange data on ignition process in SICCA and contribute to the design of the active control strategy
The IRP will have a strong link to other IRPs from different DCs for:
Provision of input and data
Where to apply
E-mail (email hidden)
Requirements
Research Field Engineering » Aerospace engineering Education Level Master Degree or equivalent
Research Field Engineering » Mechanical 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, mechanical engineering, physics or similar
Solid knowledge on Fluid Mechanics and Thermodynamics
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 of strict deadlines
Excellent communication skills (both written and verbal) in English to derive the full benefit from the network training
As secondments and events are foreseen, applicants must be ready to travel
Desired skills
Knowledge of experimental work and diagnostics in Fluid Mechanics
Knowledge of signal processing techniques
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 researchers with experience in a broad range of sciences.
You will get in contact with the other members of this international consortium.
You will agevolazioni 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 2026. 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 2027.
Additional comments
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.
#J-18808-Ljbffr
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: 1) Unveil the dynamics and sound pressure level generated during unsteady ignition and flashback process 2) 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. 3) Understand physical mechanisms leading to the onset of thermoacoustic instabilities coupled with different modes at either with a specific focus on high frequencies 4) 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
The EM2C (Energétique, Moléculaire et Macroscopique, Combustion) is a laboratory of the CNRS (CNRS UPR 288) located in CentraleSupélec (CS), which is part of the Université Paris-Saclay. It comprises about 100 people and focuses on the topics of combustion, plasmas, and heat and mass transfer. The team involved in the project is the combustion dynamics team created under the impulse of Prof. Sébastien Candel, renowned expert in the field of combustion instabilities. The team’s efforts focus on the experimental analysis and the reduced-order modelling of flame and combustor dynamics in configurations that are relevant for the fields of aerospace and energy production.
Individual Research Project (IRP)
The project aims to investigate noise radiated by confined H2-Air flames, light round ignition dynamics of these flames and combustion instabilities coupled by azimuthal modes in an annular configuration. The injector that will be used employs crossflow injection of hydrogen in a swirled air flow. Investigations of the noise emitted by H2-air combustion will be performed in the single injector setup called SICCA. Since it is possible to operate the rig with conventional hydrocarbons in premixed (for gaseous fuels) or spray (for liquid fuels) mode while keeping the same general injector geometry, comparisons will be carried out to highlight the specificities of the noise from hydrogen combustion.
Flame Transfer functions and their weakly nonlinear extension in the form of Flame Describing functions will be measured and will also serve as an input for the third part of the proposed work, which aims to predict the stability of the annular chamber MICCA. The ignition dynamics of the annular chamber MICCA when operated with hydrogen will also be studied. Previous investigations have indeed shown that the light-round phase of the ignition process gives rise to a pressure excursion and a subsequent flashback of the flame into the injector. Because of the high burning velocity of hydrogen, one may expect that this phenomenon will occur as well in the present case. This will be studied using dynamic pressure sensors to record the pressure wave induced by ignition in combination with high-speed imaging of the flame during this process. The third goal is to investigate self-excited dynamics of the annular chamber under different operating conditions. Previous studies have shown that, depending on the operating point, combustion can be stable or unstable, and in the latter case be coupled with azimuthal modes that can be spinning, standing or of mixed type. Preliminary investigations have shown that, when operated with hydrogen, high-order azimuthal modes, characterized by high frequencies, can be triggered. To investigate these phenomena, pressure fluctuation and heat release rate measurements will be carried out and coupled with LOM analytical models to develop predictive tools and find ways of reducing azimuthal combustion instabilities.
Research Objectives
Measure combustion noise in the single injector test rig SICCA and compare with hydrocarbon flames.
Measure the Flame Transfer Functions of H2-Air flames in SICCA, targeting high frequencies.
Perform experiments on ignition dynamics with hydrogen with a focus on pressure excursion.
Measure stability maps of MICCA in a broad operating domain.
Combine the previous results into a reduced order model to investigate predictive capabilities.
Expected Results
Spectral signatures of H2-Air flame in SICCA and comparison to those of conventional hydrocarbons. Flame Transfer Functions will be documented.
Measurements of the pressure excursion during ignition of the MICCA chamber.
Stability map of the MICCA annular test rig burning hydrogen. A stability analysis will be carried out in parallel thanks to a data-driven low order analytical model leveraging flame describing functions and injection unit impedances measured on separate rigs.
Secondments
Technical University of Berlin (Germany, ca. 2 months): develop the LOM for stability analyses in annular combustion chambers.
Czestochowa University of Technology (Poland, ca. 3 months): exchange data on ignition process in SICCA and contribute to the design of the active control strategy
The IRP will have a strong link to other IRPs from different DCs for:
Provision of input and data
Where to apply
E-mail (email hidden)
Requirements
Research Field Engineering » Aerospace engineering Education Level Master Degree or equivalent
Research Field Engineering » Mechanical 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, mechanical engineering, physics or similar
Solid knowledge on Fluid Mechanics and Thermodynamics
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 of strict deadlines
Excellent communication skills (both written and verbal) in English to derive the full benefit from the network training
As secondments and events are foreseen, applicants must be ready to travel
Desired skills
Knowledge of experimental work and diagnostics in Fluid Mechanics
Knowledge of signal processing techniques
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 researchers with experience in a broad range of sciences.
You will get in contact with the other members of this international consortium.
You will agevolazioni 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 2026. 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 2027.
Additional comments
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.
#J-18808-Ljbffr