Thesis - 3D CFD Modeling of Spray Quenching

Master Thesis

Spray quenching is a key process in cooling applications and SCR exhaust aftertreatment systems. To improve our understanding of the underlying physics, a numerical 3D CFD model of a spray quenching test bench will be developed using AVL Fire M. The work focuses on simulating the interaction between a hot gas flow and water spray injection. The study provides hands-on experience in multiphase flow simulation, droplet evaporation, spray-wall interaction, and heat transfer modeling.

YOUR RESPONSIBILITIES:

Develop a 3D model of a test bench tube with hot gas flow in AVL Fire M
Implement and parametrize water injection using Lagrangian parcels
Perform CFD simulations for 6 operating conditions:
- Low-temperature case (290oC) with three spray dosing rates (250 g/h, 500 g/h, 2000 g/h)
- Moderate dosing case (500 g/h) with varying gas temperatures (290oC, 350oC, 400oC, 450oC)
Analyze results regarding temperature distribution, droplet evaporation and spray–flow interaction
Compare and discuss results with physical expectations and
experimental data

YOUR PROFILE:

Master’s student in Mechanical Engineering, Process Engineering, Chemical Engineering, Energy Technology or a related field
Background in fluid mechanics, heat and mass transfer
Basic knowledge of CFD; prior experience with AVL Fire M or comparable software is an advantage
Independent, structured and analytical working style

WE OFFER:

You can write your thesis independently and receive professional guidance and support from our experienced employees.
You will have the opportunity to exchange ideas with experts in the company and benefit from their expertise.
Take the opportunity to immerse yourself in the world of AVL and embed your theoretical knowledge in a practical environment.

The successful completion of the thesis is remunerated with a one-time fee of EUR €3,500.00 before tax.

You don't want to write your final thesis just for the books, then explore the mobility of the future together with us! Maybe you will be a part of it soon!

At AVL, we foster and celebrate diversity: We recognize that diverse ways of thinking are required to achieve our vision of a greener, safer, and better world of mobility. Different backgrounds, attitudes, interests, and experiences make us successful. As Equal Opportunity Employer we consider all qualified applicants without regard to ethnicity, religion, gender, sexual orientation or disability status.

About AVL

AVL is one of the world’s leading mobility technology companies for development, simulation and testing in the automotive industry, and beyond. We provide concepts, solutions and methodologies in fields like vehicle development and integration, e-mobility, automated and connected mobility (ADAS/AD), and software for a greener, safer, better world of mobility.

Find out more: www.avl.com

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Location: Graz, AT

Company: AVL List GmbH

Job Function: Simulation

Contract Type: Thesis

Posting Date: Oct 25, 2025

Job ID: 38616

About AVL

AVL is one of the world’s leading mobility technology companies for development, simulation and testing in the automotive industry, and beyond. We provide concepts, solutions and methodologies in fields like vehicle development and integration, e-mobility, automated and connected mobility (ADAS/AD), and software for a greener, safer, better world of mobility.

Find out more: www.avl.com

Job Segment: Testing, Mechanical Engineer, Chemical Engineer, Process Engineer, Physics, Technology, Engineering, Science