Type dienstverband:
Internship and graduation project
Uren per week:
Fulltime – 40

Internship | Multiphase damping

About this position

Pipes carrying fluids will show flow induced vibrations. In case of internal multiphase flow the excitation can be that large that pipe failure can occur. The final resulting vibration amplitude is difficult to predict a.o. by the damping effects of the multiphase flow. To improve the understanding of these damping effects multiphase experiments are performed and analysed.

What will be your role?

TNO has built a setup consisting of a simple pipe which can be excited either via impulse or a shaker (at fixed frequency or with noise). Special is that a 3D tomography sensor is included in the setup. This allows visualization of the flow. This can also be done in case the pipe vibrations are excited. The sensor can be installed half way the pipe such that exciting occurs at the sensors location or the sensor can be installed at the pipe inlet or outlet (in the fixed non-vibrating part of the setup) such that the multiphase flow in non-disturbed conditions can be measured.

The main goal of the assignment is to evaluate the effect of the excitation method at different flow conditions (stratified, slug and annular flow) on the obtained damping result. Based on these experiments, correlations to predict the damping as function of parameters such flow regime, sloshing frequency, wave height need to be developed.

What we expect from you

We are looking for a student who is enthusiastic, critical and a team-player. We expect you to work hard and independently on your own project, but ask for help if needed. Knowledge on fluid mechanics and experience with experimentation is highly preferred.

The experimental activities will be performed in Delft. The analysis of the results can also be done at TNO office in Delft. Duration: 6 to 9 months

What you'll get in return

You want to work on the precursor of your career; a work placement gives you an opportunity to take a good look at your prospective future employer. TNO goes a step further. It’s not just looking that interests us; you and your knowledge are essential to our innovation. That’s why we attach a great deal of value to your personal and professional development. You will, of course, be properly supervised during your work placement and be given the scope for you to get the best out of yourself. Naturally, we provide suitable work placement compensation.

TNO as an employer

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference. Because with every innovation you contribute to tomorrow’s world. Read more about TNO as an employer.

At TNO we encourage an inclusive work environment, where you can be yourself. Whatever your story and whatever unique qualities you bring to the table. It is by combining our unique strengths and perspectives that we are able to develop innovations that make a real difference in society. Want to know more? Read what steps we are taking in the area of diversity and inclusion.

The selection process

After the first CV selection, the application process will be conducted by the concerning department. TNO will provide a suitable internship agreement. If you have any questions about this vacancy, you can contact the contact person mentioned below.

Has this job opening sparked your interest?

Then we’d like to hear from you! Please contact us for more information about the job or the selection process. To apply, please upload your CV and covering letter using the ‘apply now’ button.

A portrait of the TNO internship