30 credits - Development of CFD simulation methods to resolve acoustic characteristics of flow

Sodertalje, Stockholm
den 19 augusti 2020
den 17 september 2020
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Thesis project at Scania is an excellent way of making contacts for your future working life. Many of our current employees started their career with a thesis project. We are always looking for academic association with students and universities. If you as a student would like to work on a CFD or acoustic project other than the one defined in this ad, you are encouraged to contact us as well.

Scania continuously aims to be a benchmark when it comes to developing sustainable vehicle solutions. One of the major challenges for IC engine powered vehicles is to minimize the noise levels. The exhaust silencer serves this function for the engine unit and is desired to have a high degree of performance. As we strive to diversify out noise reduction strategies, we are currently looking at utilizing flow turbulence to mitigate exhaust noise. This needs development of simulation simulation method to facilitate the development of Scania's next generation of exhaust systems.

As SCANIA carries out a number of iterative cycles during the product development phase, the speed of simulation methods is as important as their accuracy. It is known that vortex generation has the ability to absorb acoustic energy from a fluid. The target of this thesis work is to perform LES simulations to study vortex generation by a structure and its effect on acoustic properties.

The focus of this thesis will be to set up an LES simulation to study the acoustic characteristics of a flow field.

We would like to present this thesis work as an open ended project which can be tailored as per the thesis worker's vision towards the project objectives. Nonetheless a brief outline may include the following focus areas:
  • Setting up of LES simulation and developing post processing methods.
  • Resolve flow structures.
  • Study the possibility to create flow obstructions capable of absorbing acoustic energy.
  • Present and document the methodology.

  • Education:
    Masters student with focus on Flow Physics, CFD, Acoustics or similar disciples.

    Number of students: 1 - 2
    Start date: September 2020
    Estimated time needed: 20 weeks

    Contact persons and supervisors:
    Naveen Indolia NXPS, Thesis Supervisor +468 553 70677,

    Kim Petersson NXPS, Group Manager +468 553 82524

    Your application should contain a covering letter, CV and transcripts.

    Scania is a world-leading provider of transport solutions. Together with our partners and customers we are driving the shift towards a sustainable transport system. In 2018, we delivered 88,000 trucks, 8,500 buses as well as 12,800 industrial and marine engines to our customers. Net sales totalled to over SEK 137 billion, of which about 20 percent were services-related. Founded in 1891, Scania now operates in more than 100 countries and employs some 52,000 people. Research and development are concentrated in Sweden, with branches in Brazil and India. Production takes place in Europe, Latin America and Asia, with regional production centres in Africa, Asia and Eurasia. Scania is part of TRATON SE. For more information visit:

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