layiq

/la·yiq/adjective

worthy; deserving; fitting; suitable.

A role, opportunity, or path that merits attention, time, and pursuit.

Staff CFD Analysis Engineer at Valar Atomics | LAYIQ

Plan and perform high-fidelity CFD and conjugate-heat-transfer analyses in Ansys Fluent for reactor thermal-hydraulics, including geometry preparation, meshing strategy, turbulence-model selection, solver set-up, and convergence assessment.
Establish and document the verification and validation basis for CFD work in accordance with ASME V&V 20, including mesh-convergence (GCI) studies and benchmarking against separate-effects and integral-effects test data.
Provide and receive boundary conditions across streams — supplying heat-transfer and loss coefficients to the Thermal-Fluid (Flownex) stream, exchanging power/heat-source distributions with Neutronics, and handing thermal/pressure loads to FEA for thermal-stress evaluation.
Lead technical problem definition, perform independent review/checking of analyses, and produce analysis reports and calculation packages that satisfy NQA-1 / 10 CFR 50 Appendix B documentation and traceability expectations.
Interface with the thermal-fluid systems (Flownex), structural (FEA), and neutronics teams to build coupled and hand-off multiphysics workflows (e.g., CFD-derived heat-transfer coefficients and thermal maps into structural and systems models).
Lead technical reviews, set CFD modelling standards and best practices, and mentor mid-level and junior analysts; support regulator and customer technical interactions.
Develop and standardize CFD methods, templates and best practices, and support the Stream Lead in scoping, estimating and scheduling CFD work across projects.
Basic Qualifications
Bachelor's degree (or higher) in Mechanical, Aerospace, or Nuclear Engineering, or a closely related field.
8+ years of professional, production-grade CFD analysis experience.
Preferred Skills and Experience
Master's degree (or higher) in Mechanical, Aerospace, or Nuclear Engineering, or a closely related field.
Strong grounding in turbulence modeling (RANS k-ε / k-ω SST and scale-resolving LES/DES), conjugate heat transfer, multiphase and species transport.
Master's degree (or higher) in Mechanical, Aerospace, or Nuclear Engineering, or a closely related field.
Demonstrated V&V practice (ASME V&V 20, GCI, validation against test data) and uncertainty quantification.
Experience operating under a nuclear or other regulated quality program (ASME NQA-1, ISO 9001, 10 CFR 50 Appendix B) and exposure to NRC / ASME regulatory environments.
Reactor thermal-hydraulics domain knowledge (natural circulation, passive cooling, coolant behavior for helium, molten salt or liquid metal) is a strong advantage.
Scripting/automation (Python, journaling, UDFs) and HPC workflow experience; track record of mentoring and leading technical analysis within a team.
Working knowledge of coupling CFD with systems codes and structural FEA; exposure to advanced-reactor thermal-hydraulics (HTGR, SFR, MSR, micro-reactors) is a plus.
Track record of mentoring and leading technical systems analysis within a team.

Staff CFD Analysis Engineer

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