CFD Simulation Engineer – HVAC Flow and Ventilation

Job Title:  CFD Simulation Engineer – HVAC Flow & Ventilation

Summary:

The Junior CFD Simulation Engineer – HVAC Flow & Ventilation supports the analysis and optimization of airflow, heat transfer, and ventilation performance in HVAC systems using computational fluid dynamics (CFD) tools. Working under the guidance of senior simulation or R&D engineers, this role focuses on building models, conducting simulations, and contributing to product development and building environment assessments.

Key Responsibilities:

CFD Modeling & Simulation

• Assist in the setup and execution of CFD simulations for airflow, thermal distribution, pressure drops, and contaminant dispersion in HVAC systems.

• Create 3D models and meshes using CAD tools and pre-processing software.

• Apply appropriate boundary conditions and solver settings for steady-state and transient simulations.

Design Support

• Support HVAC design teams by providing simulation insights into duct design, diffuser placement, equipment layout, and airflow optimization.

• Contribute to design iterations for improved energy efficiency, comfort, or IAQ (Indoor Air Quality).

Data Analysis & Reporting

• Analyze simulation results for velocity, temperature, turbulence, and flow patterns.

• Generate visualizations (streamlines, isosurfaces, vector plots) to support engineering decisions.

• Assist in compiling technical reports, summaries, and presentations.

Collaboration & Learning

• Work closely with mechanical designers, thermal engineers, and testing teams to validate simulations against lab data.

• Learn company-specific best practices in CFD methodology, meshing strategy, and post-processing workflows.

• Stay updated with HVAC standards such as ASHRAE 62.1, 55, and building ventilation codes.

Key Focus Areas:

• CFD simulation support for HVAC airflow and ventilation analysis

• Geometry preparation, meshing, solver setup, and post-processing

• Collaboration with design, testing, and R&D teams

• Indoor air distribution and energy performance insight

Qualifications:

Education:

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Thermal/Fluid Sciences, or a related field (required)

• Master’s degree with a focus on CFD or HVAC applications (preferred)

Experience:

• 0–2 years of experience in CFD simulation (internship, academic, or industry project)

• Exposure to HVAC, ventilation, or thermal system design is a plus

Tools & Software:

• Basic experience with CFD software (e.g., ANSYS Fluent, Simcenter STAR-CCM+, OpenFOAM, COMSOL)

• Proficiency in CAD tools (SolidWorks, AutoCAD, or similar)

• Familiarity with post-processing tools like ParaView, Tecplot, or CFD-Post

Skills & Competencies:

• Strong foundation in fluid mechanics, thermodynamics, and heat transfer

• Analytical mindset and attention to detail

• Willingness to learn complex simulation workflows and HVAC standards

• Good communication and technical writing skills