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Spillway flow behaviours with and without aeration- Thesis, R&D

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Spillway flow behaviours with and without aeration- Thesis, R&D

Power Climate Smarter living – that’s our purpose. We are looking for the brightest students to make this happen. Together you will contribute to a fossil free future. You will have a unique position to contribute to our purpose. All we ask from you is to use your Superpowers and share your energy to help us achieve our goal.
About the thesis

• The project is to be performed at Vattenfall R&D.

• Thesis subject / assignment – Aeration arrangements exist in many dam spillways. To understand the aeration behavior helps in decision making concerning both medium and high flood discharges. Spillway flows need to be aerated in order to avoid jet oscillations in the flow direction and unfavorable conditions of energy dissipation and channel erosion downstream. Some aeration passages are sealed to avoid problems with rain and snow. It is not clear if this affects flood discharges.
• Thesis goal / purpose – For the chosen spillway configuration, to set up CFD models and perform modeling in three dimensions (3D), to examine the flows with and without aeration, to compare the results in terms of jet behaviors and sub-pressure conditions and to make recommendations. Observations from the previous physical hydraulic model and the prototype are also available for inclusion as part of the comparisons.

• This assignment is for one student.
Your profile

We are looking for a student to join our journey towards a fossil free future. You are soon to be graduated from your academic studies. You also identify yourself with our principles: active, open, positive and safe.
• Education – proper background is university education in civil (hydraulic) engineering, engineering physics or similar disciplines.  

• Scope – the project corresponds to a 30 hp diploma work

• Fluent written English is required

• Strong interests in hydropower, dam safety and hydraulic engineering

• The time of execution should be within four (4) months, completed during 2022

More information
• Start of assignment: 2022-01-17 or by agreement

• Location: Älvkarleby, Stockholm, Uppsala or by agreement

• Application – a combined document with your CV and cover letter, and university grades are to be submitted in the application.

• Deadline for application is 2021-12-17. Incoming applications are processed on a running basis and the vacancy is filled as long a suitable candidate is found and the announce is then removed. This is the reason why you should not wait to the deadline to send in your application, with complete contact information.

• Contact person and supervisor at Vattenfall is: James Yang, james.yang@vattenfall.com, phone 070-2723 200.
Diversity & inclusion – in everything we do

At Vattenfall we build on the fact that diverse teams can outperform homogeneous teams. But we can only unleash and leverage the power of diversity, if we make everybody feel included. Read more about our important work on diversity & inclusion https://careers.vattenfall.com/about-us/diversity-and-inclusion/
About Vattenfall

We have been electrifying industries, powering homes and transforming life through innovation and collaboration for more than 100 years. Empowered by our goal, we are determined to enable fossil free living within one generation. To succeed we, as one of Europe’s leading energy companies, must be fossil-free ourselves.

But that’s not enough. That’s why we are looking beyond our own industry, to see where we can really make a difference.

Join us in our journey towards a fossil-free life within one generation.
Want to learn more about what we do? Visit www.vattenfall.com.
Since Vattenfall is a part of the Swedish critical infrastructure, many of our services are security classed. If this position is security classed the final candidates might be subjected to a security vetting process, according to the Swedish legislation.

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Spillway flow behaviours with and without aeration- Thesis, R&D

Vattenfall AB