Computational Fluid Dynamics Modeler

Date: Jun 1, 2023

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 10490 


The Oak Ridge National Laboratory (ORNL) is one of the nation’s largest multi-program science and technology laboratories within the U.S. Department of Energy (DOE). The Enrichment Science and Engineering Division (ESED) at ORNL is tasked with advancing enrichment technologies and exploring stable isotope production and application. The division leverages an elite staff of scientists and engineers with the world-leading capabilities of ORNL to deliver groundbreaking advancements with a variety of applications, from national security to life-saving medical treatments. ESED is currently seeking a Computational Fluid Dynamics (CFD) expert to develop a novel computational architecture capable of simulating the complex behavior of fluids at all scales. A successful candidate will collaborate with computer scientists and experimental facilities to develop verified models initially focused on enrichment technologies.


Major Duties/Responsibilities: 

  • Apply initial modeling efforts as they pertain to enrichment technologies.
  • Publish high quality research results in peer-reviewed open or classified journals and conferences, if authorized by the sponsoring agency.
  • Publish and present non-sensitive research in journals and conferences.
  • Develop and write proposals for cutting edge research and funding.
  • Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote diversity, equity, inclusion, and accessibility by fostering a respectful workplace – in how we treat one another, work together, and measure success.

Basic Qualifications:

  • Master’s degree in physics, computer science, aerospace engineering or closely related field.
  • 4 – 6 years of demonstrated experience in the field of computational fluid dynamics
  • Candidate must be able to obtain and maintain a DOE Q clearance.


Preferred Qualifications:

  • Strong computational skills with modeling and simulation experience using High Performance Computing environments.
  • Excellent communication (spoken and written)
  • Familiarity with Finite Element Methods.
  • Experience with multiscale modeling, including kinetic theory


Benefits at ORNL:

ORNL offers competitive pay and benefits programs to attract and retain talented people. The laboratory offers many employee benefits, including medical and retirement plans and flexible work hours, to help you and your family live happy and healthy. Employee amenities such as on-site fitness, banking, and cafeteria facilities are also provided for convenience.


Other benefits include the following:

Prescription Drug Plan, Dental Plan, Vision Plan, 401(k) Retirement Plan, Contributory Pension Plan, Life Insurance, Disability Benefits, Generous Vacation and Holidays, Parental Leave, Legal Insurance with Identity Theft Protection, Employee Assistance Plan, Flexible Spending Accounts, Health Savings Accounts, Wellness Programs, Educational Assistance, Relocation Assistance, and Employee Discounts.



Moving can be overwhelming and expensive. UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.


For more information about our benefits, working here, and living here, visit the “About” tab at


Special Requirements:

Q clearance: 

This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.


This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

If you have trouble applying for a position, please email

ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

Nearest Major Market: Knoxville