The Multiphysics Computations Section at Argonne National Laboratory is seeking to hire a postdoctoral appointee for performing high-fidelity scale-resolving computational fluid dynamics (CFD) simulations and reduced order modeling of turbulent and reacting flows relevant to advanced propulsion and power generation systems, such as gas turbines and detonation engines. The successful candidate’s research will involve synergetic collaborations with a multi-disciplinary team involving engine modelers, CFD experts, and computational scientists to enhance the predictive capability for next-generation engine modeling code. + Perform high-fidelity CFD simulations of turbulent and reacting flows pertaining to gas turbines and detonation engines using spectral element method (SEM). + Perform scalability studies and port these simulations to leadership class supercomputing platforms, identify and improve the bottlenecks in scaling the simulations. + Analyze large simulation datasets to gain new scientific insights and develop reduced order models (ROMs) for boundary layer flows and turbulent combustion. + Integrate ROMs with CFD solvers and demonstrate predictive accuracy compared to traditional modeling approaches. **Position Requirements** + Recent or soon-to-be-completed (typically completed within the last 0-5 years) Ph.D. in mechanical/aerospace engineering, applied mathematics, chemical engineering, or a related discipline. + Expertise in Nek5000/NekRS or other comparable spectral element method codes. + Experience in running high-fidelity simulations on leadership class supercomputers. + Knowledge of performing scalability studies to identify and improve bottlenecks in large codes. + Experience in development of data-driven reduced-order models in one or more of these areas: turbulence, boundary layer flows, combustion. + Understanding of high-order methods for fluid flows. + Understanding of turbulence, boundary layer flows, multi-phase flows, chemical kinetics, combustion, and detonations. + Experience in mesh generation with computer-aided design software. + Collaborative skills, including the ability to work well with other divisions, laboratories, and universities. + Ability to demonstrate strong written and oral communication skills at all levels of the organization. + A successful candidate must have the ability to model Argonne’s Core Values: Impact, Safety, Respect, Integrity, and Teamwork. + This position requires an on-site presence at the Argonne campus in Lemont, Illinois. Preferred Qualifications: + Experience in interdisciplinary collaborative research. + Knowledge of large scientific code management and optimization. **Job Family** Postdoctoral **Job Profile** Postdoctoral Appointee **Worker Type** Long-Term (Fixed Term) **Time Type** Full time The expected hiring range for this position is $70,758.00-$117,925.00. Please note that the pay range information is a general guideline only. The pay offered to a selected candidate will be determined based on factors such as, but not limited to, the scope and responsibilities of the position, the qualifications of the selected candidate, business considerations, internal equity, and external market pay for comparable jobs. Additionally, comprehensive benefits are part of the total rewards package. Click here (https://www.anl.gov/hr/healthcare-insurance) to view Argonne employee benefits! _As an equal employment opportunity employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a safe and welcoming workplace that fosters collaborative scientific discovery and innovation. Argonne encourages everyone to apply for employment. Argonne is committed to nondiscrimination and considers all qualified applicants for employment without regard to any characteristic protected by law._ _Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Sponsored or Affiliated Activities, as defined and detailed in United States Department of Energy Order 486.1A. You will be asked to disclose any such participation in the application phase for review by Argonne's Legal Department._ _All Argonne offers of employment are contingent upon a background check that includes an assessment of criminal conviction history conducted on an individualized and case-by-case basis. Please be advised that Argonne positions require upon hire (or may require in the future) for the individual be to obtain a government access authorization that involves additional background check requirements. Failure to obtain or maintain such government access authorization could result in the withdrawal of a job offer or future termination of employment._