30 credits - CFD simulations of hydrogen heavy-duty compression ignition combustion engines

Background
Climate change mitigation is an absolute priority, requiring the evaluation of all the possible technological solutions with the potential to limit greenhouse gases and other pollutant emissions in the heavy-duty transport sector. Adapting conventional combustion engines to run on a carbon-free fuel like hydrogen will enable a drastic reduction of tailpipe CO2 via limited technology modifications. Simulations allow for faster development and a deeper understanding of the combustion process to help meet the climate goals of the future.
 

Target
This master thesis is focused on the ongoing investigation and development of a novel hydrogen combustion concept for heavy-duty engine applications. 
The main goal of the thesis is to develop a predictive CFD model for hydrogen compression ignition in heavy duty engines, with focus on understanding and optimizing ignition behavior. To achieve this, the thesis is expected to evaluate modelling approaches for an accurate and efficient simulation methodology and validate these against experimental data. 
3D CFD simulations will be performed using the software STAR-CCM+ to examine the effect of different models on the ignition and combustion of hydrogen. 

Tasks

• Perform a literature review on combustion modelling approaches focusing on the difficulties encountered using hydrogen as a fuel. Create understanding of current research focus in the field.
• Expand the existing 3D CFD H2 combustion method for in-cylinder conditions.
• Test different modelling approaches to increase accuracy and reliability of the model. For example:
  • Injection strategy: Approach for introducing the hydrogen jet, how does it affect the combustion?
  • Combustion models: Detailed chemistry vs Flamelet model for example
• Provide an evaluation and recommendations for the model using experimental data to validate accuracy.

In addition to the supervisor, extensive support from both the Scania Hydrogen team and the CFD software support team will be available.

Start date: January-February 2025
Project duration: 20 weeks

Contact person and industrial supervisor:
Vivianne Holmén Notander, vivianne.holmen.notander@scania.com

Application
Your application should include CV, cover letter and academic transcripts.
 

A background check might be conducted for this position. We are conducting interviews continuously and may close the recruitment earlier than the date specified.