Computational Fluid Dynamics (CFD) Engineering Intern - Summer 2026
About The Position
Kairos Power is seeking a highly motivated, multi-skilled intern with experience in Computational Fluid Dynamics (CFD) modeling, heat transfer and validation. This role will be part of the Modeling and Simulation CFD team which supports methodology development, engineering design, and testing programs for the KP-FHR and associated components through thermal-hydraulic analysis, with a specialization in CFD. This role will perform CFD validation benchmarking to further develop modeling methodologies. This will include building CFD models of test facilities, running and post processing the simulations for test conditions, organization and performing test data analysis, performing benchmark comparisons, and supporting the development and maturation of CFD methodologies. The position requires a strong self-starting mentality and the ability to develop and deploy novel solutions in support of the company mission.
Requirements
- Currently enrolled in a BS, MS, or PhD program in Nuclear, Mechanical Engineering, or equivalent
- E xperience using analytical and CFD tools to perform fluid and conjugate heat transfer analyses
- 2+ years using commercial CFD tools; experience with Siemens STAR-CCM+ is preferred
- Coursework or experience in heat transfer and fluid mechanics
- Strong analytical and problem-solving skills
- Proficiency with CAD modeling
- Familiarity with verification, validation and uncertainty quantification methods
- E xcellent verbal, written communication/presentation, and interpersonal skills
- Understanding of nuclear reactor systems
- Ability to work with highly collaborative team s
- Ability to solve problems quickly and efficiently
- Prioritizes and ensures safety of one self and others
- Ability to proactively collect, manage and transfer knowledge
- Ability to seek different and novel ways to create efficiencies when working on problems, challenges and issues
Nice To Haves
- Experience with Solidworks or STAR-CCM+ 3D CAD is preferred
- Familiarity with high temperature simulations modeling natural convection and radiation is preferred
- Programming/scripting experience for automation and post-processing
Responsibilities
- Develop CFD models of high - temperature test systems , modeling heat transfer, natural convection, radiation, melting and fluid flow .
- Perform validation of CFD with in-house produced experiment data .
- Collaborate with test and facility operations engineers in the production and post processing of test data to be used for CFD model validation .
- Matur e , d ocument and recommend improvements to CFD modeling methodologies based on validation results.
- Develop and maintain automation scripts that take inputs from various sources, perform post - processing analyses of input data, and generate applicable report files .
- Present validation results and CFD modeling methodology findings through technical documents and oral presentations .
- Collaborate with and communicate results to various teams, including Reactor Systems Design, Core Design, CFD, Safety Analysis, and Testing teams .
- Other duties as assigned.
Benefits
- Competitive compensation packages
- Medical, dental and vision benefits for employees and their dependents
- Paid Vacation
- 401(k) and pre-tax health insurance, dependent care, and commuter benefits (FSA)
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What This Job Offers
Career Level
Intern
Number of Employees
251-500 employees
