Building Physics Engineer (CFD Simulation)

CFD Engineer

Responsibilities

• Perform high-quality CFD simulations to analyze airflow, pollutant dispersion, and thermal distribution.
• Build CFD models from 3D CAD geometries, applying best practices in meshing and setup.
• Set up physics models and numerical schemes appropriate for engineering problems.
• Troubleshoot simulation issues and ensure reliable outputs.
• Analyze simulation results to extract actionable insights and optimize ventilation system design.
• Collaborate with engineers to improve car park ventilation design (fan placement, duct sizing, inlet/outlet placement).
• Conduct iterative simulations to meet required standards for ventilation performance.
• Lead or contribute to CFD studies related to:
• Fire and smoke dispersion in underground car parks, tunnels, and stations
• Pedestrian comfort and air quality modeling
• Hydraulic modeling for water utility installations
• Provide fluid dynamics and thermal consultation to interdisciplinary teams.
• Participate in project technical meetings and internal stakeholder communications.
• Use 1D simulation data to enhance and validate 3D CFD models.
• Perform engineering calculations including fire curves, Heat Release Rate (HRR), ASET/RSET.
• Conduct HVAC load calculations using HAP/IES software.
• Design HVAC systems, ductwork, and piping layouts using CAD tools.
• Select appropriate HVAC equipment based on simulation data and system requirements.
• Integrate sustainable engineering practices to reduce environmental impact.

Candidate Specification

Essential Qualifications and Experience:

• Bachelor's degree in Mechanical Engineering (Master's preferred).
• 56 years of hands-on experience in CFD analysis, energy modeling, and HVAC simulations.
• Proficiency in software tools such as:
• ANSYS Fluent, FDS
• HAP, IES
• Familiarity with programming languages: Python, C++, VBA, UDFs.
• Strong communication and documentation skills.
• Willingness to travel internationally for short durations (12 weeks).

Desirable Skills:

• Experience with UDFs and energy modeling.
• BIM-based engineering design development.
• Ability to work in multi-disciplinary project teams.
• Flexibility to support other engineering tasks in the absence of numerical simulation jobs.

What We Offer (as per company policy)

• Safe and agile working environment
• Competitive annual leave and sick leave
• Group incentive scheme
• Term life, medical, and workmen's compensation insurance
• Opportunities for global employment and collaboration
• Access to digital tools and innovations
• A strong culture of equality, diversity, and inclusion
• Flexibility and trust-driven working practices

Equal Opportunity Employer:

Mott MacDonald is committed to fair employment practices and providing equal opportunities to all. We value individual expression and foster an inclusive culture.

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Education:

• UG: Any Graduate
• PG: Any Postgraduate