Internship - Winter 2027 - Combustion Engineering

Pratt & Whitney; Mississauga; On-site; CAD 33,000 - 48,000; Full time

Job summary

Pratt & Whitney Canada invites a Master/PhD candidate for a CFD internship focused on combustion NOx prediction and validation in gas turbine engines. You will work with ANSYS CFD tools, build geometry, mesh, and compare NOx models to engine data, delivering a concise report.

The role is onsite in Mississauga, with exposure to combustion CFD and the engine portfolio, and you will develop programming skills in C/C++, Python, and MATLAB within a cross-functional team.

Qualifications

• Be eligible to work in Canada.
• Be enrolled in a Canadian university throughout your internship.
• Master/PhD candidate in Mechanical, Aerospace, Engineering Physics or Chemical Engineering.
• Proficiency in ANSYS CAD tools (SpeceClaim and/or Design modeller and/or Discovery).
• Proficiency in ANSYS mesh generators (Fluent mesher and/or ANSYS Workbench mesher).
• Proficiency in ANSYS Fluent or other Combustion CFD codes such as OpenFOAM.
• Solid understanding of Fluid mechanics, multiphase flows and combustion sciences.
• Proficiency of computer programming using C/C++, Python, MATLAB languages.

Responsibilities

• Prepare combustion chamber geometry using ANSYS CAD tools
• Mesh geometry using ANSYS meshing tools
• Review NOx prediction models available in open literature and comparison to the models implemented in ANSYS Fluent
• Perform combustion CFD simulations in ANSYS Fluent with primary focus on the prediction of the NOx created by the combustion process
• Review combustor NOx data measured on engines to understand key variables and the measurement details
• Perform CFD simulations with the NOx models available in ANSYS Fluent and compare the predictions to engine data
• Implement a new NOx model obtained from the literature survey in ANSYS Fluent
• Summarize and present findings
• Document the findings in a report

Skills

ANSYS CAD tools

ANSYS mesher

ANSYS Fluent

OpenFOAM

C/C++

Python

MATLAB

Fluid mechanics

Education

Master/PhD candidate in Mechanical, Aerospace, Engineering Physics or Chemical Engineering

Tools

SpeceClaim

Design modeller

Discovery

Fluent mesher

Workbench mesher

Job description

Location: CA-ON-MISSISSAUGA-P22M01 ~ 1801 Courtney Park Dr ~ P22M01 BLDG

Date Posted: 2026-09-02

Country: Canada

Location: CA-ON-MISSISSAUGA-P22M01 ~ 1801 Courtney Park Dr ~ P22M01 BLDG

Position Role Type: Onsite

About Pratt & Whitney Canada

Pratt & Whitney Canada (P&WC) is a global leader in aerospace innovation, proudly headquartered in Longueuil, Quebec, since 1928. We design and manufacture next-generation aircraft engines that power the world’s largest fleet of business, general aviation, and regional aircraft and helicopters.

For nearly 100 years, our teams have been at the forefront of propulsion technology, pushing boundaries to make flight more efficient and reliable. Our engines support missions that truly matter, from transporting people and essential goods, to enabling emergency medical services, humanitarian operations, and wildfire suppression around the world.

An Employer of Choice

Pratt & Whitney Canada was named one of Canada’s Best Employers for 2026 by Forbes, marking the 11th consecutive year the company has earned this recognition. Pratt & Whitney Canada also ranked #1 employer in the aerospace and defense industry in the country. In addition, our headquarters continues to be recognized among the top employers in the Montreal region. Together, these distinctions reinforce our reputation as an employer of choice in Montreal, across Canada, and around the world.

Internship dates: January 5th to April 23rd, 2027

Location: The position is based at 1801 Courtneypark Dr. E, Mississauga, ON L5T 1J3; from Monday to Friday, with flexible hours and exclusively on-site.

Check out our YouTube channel: https://www.youtube.com/@PrattWhitneyCa

Our website: https://www.pwc.ca/en

Why join our team?

Combustion Aerothermal Systems is one of the Combustion module departments within the Turbomachinery organization. The department is responsible for design and validation of the combustion section of turbofan, turboprop, and turboshaft engines. The aerothermal design process uses various numerical tools, including CFD simulations, with validation testing in rigs and engines. This internship will focus on CFD prediction and validation of the NOx emissions created by the combustion process in a gas turbine engine.

What will your day-to-day look like?

• Prepare combustion chamber geometry using ANSYS CAD tools
• Mesh geometry using ANSYS meshing tools
• Review of NOx prediction models available in open literature and comparison to the models implemented in ANSYS Fluent
• Perform combustion CFD simulations in ANSYS Fluent with primary focus on the prediction of the NOx created by the combustion process
• Review combustor NOx data measured on engines to understand key variables and the measurement details
• Perform CFD simulations with the NOx models available in ANSYS Fluent and compare the predictions to engine data
• Implement a new NOx model obtained from the literature survey in ANSYS Fluent
• Summarize and present findings
• Document the findings in a report

What You Will Learn

• Gas turbine engine combustion system components and function
• Gaseous emissions
• CFD improvement and validation process
• Pratt & Whitney Canada's engine portfolio
• Teamwork & group dynamics

What do you need to be successful?

• Be eligible to work in Canada.
• Be enrolled in a Canadian university throughout your internship.
• Be able to work on-site in the province where you are hired if applicable.
• Master/PhD candidate in Mechanical, Aerospace, Engineering Physics or Chemical Engineering
• Proficiency in ANSYS CAD tools (SpeceClaim and/or Design modeller and/or Discovery)
• Proficiency in ANSYS mesh generators (Fluent mesher and/or ANSYS Workbench mesher)
• Proficiency in ANSYS Fluent or other Combustion CFD codes such as OpenFOAM
• Solid understanding of Fluid mechanics, multiphase flows and combustion sciences
• Proficiency of computer programming using C/C++, Python, MATLAB languages

Assets

• Exposure to combustion CFD
• Good oral and written communication skills
• Ability to work independently as well as in a team

Working at Pratt & Whitney Canada

The masculine pronoun is used without discrimination and solely for the purpose of making the text easier to read. We will consider applications from all qualified candidates.

At Pratt & Whitney Canada, we combine passion, boldness, and precision to design, manufacture, and maintain the most advanced and reliable aircraft engines in the world. Our work and the quality of our products contribute to the success of our customers, who in turn save lives, support commerce, connect communities, and protect freedoms.

At Pratt & Whitney Canada, you have the opportunity to make a difference every day—just look up. Are you ready to go beyond?

The selected candidate will be required to complete a criminal background check and any applicable clearances with respect to the handling and transfer of controlled goods. Employment is conditional upon the successful completion of these checks and obtaining the required clearances. Failure to do so will result in the withdrawal of the employment offer.

The salary range for this role is 23.70 to 34.50 CAD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

This job posting is for an existing position vacancy.

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age disability, protected veteran status or any other characteristic protected by law.

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