Ellaway Blues Consulting
Thermal-Hydraulics Engineer
Ellaway Blues Consulting, Granite Heights, Wisconsin, United States
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Thermal-Hydraulics Engineer – Advanced Reactor Systems We’re looking for a Thermal-Hydraulics Engineer to support the design, modeling, and experimental testing of advanced liquid-metal reactor technologies. This position focuses on evaluating system-level thermal-fluid behavior, improving passive safety performance, and advancing high-fidelity simulation tools. The ideal candidate brings strong technical expertise in thermal-hydraulic modeling, experience with liquid-metal or low Prandtl number systems, and the ability to collaborate across disciplines to inform system design and safety validation. Key Responsibilities Develop steady-state and transient thermal-fluid models for advanced reactor systems using system codes such as RELAP5-3D, SAM, or TRACE. Perform CFD and subchannel simulations using commercial tools (e.g., ANSYS Fluent, STAR-CCM+, CTF) to evaluate flow behavior and heat transfer across reactor components. Support thermal-fluid testing activities, including the development of test plans, data analysis, and model validation for sodium-cooled systems. Collaborate closely with core design, safety analysis, systems engineering, and control teams to ensure accurate integration of thermal-hydraulic models across design phases. Evaluate modeling tools for capability gaps and propose enhancements aligned with regulatory expectations and industry standards. Prepare clear technical documentation, including analysis reports, test summaries, and design review materials. Qualifications Education & Experience Bachelor’s degree (or higher) in Nuclear Engineering, Mechanical Engineering, or a related field with a focus on thermal-fluid sciences. 3–10 years of experience in thermal-hydraulic simulation and system-level modeling, ideally involving sodium or other liquid-metal-cooled reactors. Technical Skills Proficiency with system analysis codes such as RELAP5-3D, SAM, or TRACE. Experience with CFD and subchannel analysis tools (e.g., Fluent, CTF, STAR-CCM+, OpenFOAM). Familiarity with MOOSE-based platforms (e.g., PRONGHORN, BISON) is a plus. Strong scripting and data analysis skills (Python, MATLAB, etc.). Understanding of thermal-fluid behavior in low Prandtl number systems. Awareness of verification and validation practices in nuclear applications. Seniority level
Seniority level Mid-Senior level Employment type
Employment type Full-time Job function
Industries Electric Power Generation, Energy Technology, and Services for Renewable Energy Referrals increase your chances of interviewing at Ellaway Blues Consulting by 2x Inferred from the description for this job
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Thermal-Hydraulics Engineer – Advanced Reactor Systems We’re looking for a Thermal-Hydraulics Engineer to support the design, modeling, and experimental testing of advanced liquid-metal reactor technologies. This position focuses on evaluating system-level thermal-fluid behavior, improving passive safety performance, and advancing high-fidelity simulation tools. The ideal candidate brings strong technical expertise in thermal-hydraulic modeling, experience with liquid-metal or low Prandtl number systems, and the ability to collaborate across disciplines to inform system design and safety validation. Key Responsibilities Develop steady-state and transient thermal-fluid models for advanced reactor systems using system codes such as RELAP5-3D, SAM, or TRACE. Perform CFD and subchannel simulations using commercial tools (e.g., ANSYS Fluent, STAR-CCM+, CTF) to evaluate flow behavior and heat transfer across reactor components. Support thermal-fluid testing activities, including the development of test plans, data analysis, and model validation for sodium-cooled systems. Collaborate closely with core design, safety analysis, systems engineering, and control teams to ensure accurate integration of thermal-hydraulic models across design phases. Evaluate modeling tools for capability gaps and propose enhancements aligned with regulatory expectations and industry standards. Prepare clear technical documentation, including analysis reports, test summaries, and design review materials. Qualifications Education & Experience Bachelor’s degree (or higher) in Nuclear Engineering, Mechanical Engineering, or a related field with a focus on thermal-fluid sciences. 3–10 years of experience in thermal-hydraulic simulation and system-level modeling, ideally involving sodium or other liquid-metal-cooled reactors. Technical Skills Proficiency with system analysis codes such as RELAP5-3D, SAM, or TRACE. Experience with CFD and subchannel analysis tools (e.g., Fluent, CTF, STAR-CCM+, OpenFOAM). Familiarity with MOOSE-based platforms (e.g., PRONGHORN, BISON) is a plus. Strong scripting and data analysis skills (Python, MATLAB, etc.). Understanding of thermal-fluid behavior in low Prandtl number systems. Awareness of verification and validation practices in nuclear applications. Seniority level
Seniority level Mid-Senior level Employment type
Employment type Full-time Job function
Industries Electric Power Generation, Energy Technology, and Services for Renewable Energy Referrals increase your chances of interviewing at Ellaway Blues Consulting by 2x Inferred from the description for this job
Medical insurance Vision insurance Get notified about new Thermal Engineer jobs in
Texas, United States . Modeling and Simulation Engineer - TX - On Site
Pipeline and Pump Station Project Engineer
Richardson, TX $112,000.00-$175,000.00 2 weeks ago Foundations - Project Engineer - Gulf Coast
Austin, Texas Metropolitan Area 4 months ago Austin, TX $127,000.00-$165,000.00 2 weeks ago Dallas, TX $80,000.00-$100,000.00 2 weeks ago ENGINEER - RESEARCH ENGINEER - Ocean Simulation Lab
Foundations - Project Engineer - Gulf Coast
VIE - Modelling & Simulation Engineer(M/F/D)
Fort Worth, TX $90,000.00-$175,000.00 3 days ago Frisco, TX $95,000.00-$135,000.00 2 weeks ago Flow Assurance Simulation Engineer - Energy Simulation
Modeling & Simulations Engineer-FEA,CFD,LS-DYNA
Dallas, TX $78,720.00-$108,240.00 1 day ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr