- Develop and execute CFD simulations for refrigerant leakage, gas dispersion, and ventilation analysis - Model multiphase flows, multi-species transport, and transient flow behavior - Perform fire and combustion simulations, including ignition, flame propagation, and heat release - Analyze hazard scenarios such as confined space leakage, accumulation, and flammability limits - Apply appropriate boundary conditions for leak sources, mass flow rates, and environmental conditions - Conduct steady-state and transient simulations for leak evolution and fire scenarios - Interpret results to identify risk zones, ignition probability, and mitigation strategies - Support V&V; activities, including comparison with test data and literature correlations - Prepare technical reports highlighting assumptions, risks, and safety insights - Collaborate with cross-functional teams on safety, compliance, and product design - Bachelor's / Master's in Mechanical, Chemical, Aerospace Engineering, or related field - 4-8 years of experience in CFD with focus on fluid flow and safety modeling - Strong fundamentals in:



+ Fluid dynamics and turbulence + Heat transfer + Multiphase flow and species transport + Combustion and fire dynamics - Experience with CFD tools such as: ANSYS Fluent / CFX / STAR-CCM+ / OpenFOAM / COMSOL - Hands-on experience in: + Refrigerant leakage modeling + Gas dispersion and ventilation studies + Fire/combustion simulations - Understanding of: + Flammability limits and hazard assessment + Transient flow and leak dynamics + Basic V&V; practices - Good communication and technical documentation skills - Preferred: + Exposure to HVAC/refrigeration systems + Familiarity with safety / regulatory-driven simulations UL LLC has been and will continue to be an equal prospect employer. To assure full implementation of this equal employment policy, we will take steps to assure that: Persons are recruited, hired, assigned and promoted without regard to race, color, age, sex or gender, sexual orientation, gender identity, gender expression, transgender status, religion, creed, national origin, ethnicity, citizenship, ancestry, disability, genetic information, military or veteran status, pregnancy, marital or familial status, or any other protected category under applicable law.

📌 AI / Simulation Engineer (Computation Fluid Dynamics - Combustion) (Bengaluru)
🏢 UL
📍 Bengaluru