Mechanical Engineering internship: flow modeling defectivity validation

Introduction

The Flow Modeling group within the D&E Machine Conditioning – Defectivity & Optics Lifetime department focuses on high‑fidelity simulations that support product performance and risk mitigation. In this internship you will help validate drag force models and improve understanding of particle transport. Your work contributes to reducing contamination risks and improving system reliability. You will combine physics-based modeling with data from experiments. This internship offers hands-on experience with advanced simulation and real test data.

Your assignment

In this internship you will validate and improve drag force formulations and analyze the impact of environmental factors such as humidity on particle behavior. You will build on existing models and compare simulation results with experimental data. Your main responsibilities will be:

• Validate drag force models using established formulations and simulation results

• Analyze the impact of humidity on particle drag and transport behavior

• Use existing CFD models to simulate realistic use cases

• Compare simulation outputs with experimental test data

• Perform sensitivity studies to evaluate model robustness

• Document findings and propose improvements to modeling approaches

• Present results to the team and support technical discussions

This is a master’s non-thesis internship for 5 months, minimum 5 days per week (3 days on-site). The start date of this internship is as of September 2026.

Your profile

To be suitable for the internship, you:

• Are a master’s degree student in mechanical engineering or aerospace engineering

• Have experience with computational fluid dynamics modeling

• Are familiar with programming in Python or MATLAB

• Are analytical and structured in your approach to problem solving

• Communicate clearly and collaborate effectively with experts

This position requires access to controlled technology, as defined in the United States Export Administration Regulations (15 C.F.R. § 730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require ASML to proceed with candidates who are immediately eligible to access controlled technology.

Inclusion and diversity

ASML is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that inclusion and diversity is a driving force in the success of our company.

Need to know more about applying for a job at ASML? Read our frequently asked questions.