The goal of the assignment is to improve the controlled deposition of material during starts/stops.

What to do?

To gain more insight into the deposition of a material by a 3D printer, a 3D Computational Fluid Dynamics (CFD) model has to be built. The goal of the assignment is to improve the controlled deposition of material during starts/stops. More specifically:

• Understanding of dynamics flow behavior inside and outside the nozzle
  • What is the transfer function from feeder motion to material flow out of the nozzle?
  • With which accuracy can the flow be predicted and thus controlled?
• Understanding of extrudate temperature in dynamic situations
  • What is the influence of feed rate changes on the temperature of the material that flows out of the nozzle?
  • If significant, how can we reduce variations in extrudate temperature?

The internship is a combination of fluid–, thermal– & control dynamics.

Responsibilities and duties

• The CFD model should be simulated with Ansys. The intern should determine how the model is built and which effects and parameters should be taken into
  account;
• Tests should be carried out on the test machine to validate the model;
• Communicate with relevant stakeholders to pursue the goal.

Expectations

• Studying to get a master’s degree in Applied Physics, Mechanical Engineering or similar;
• Familiar with Ansys is a benefit;
• Affinity with 3D printing is a benefit;
• Fluent command of both written and spoken English;
• You’re creative, driven, proactive, pragmatic, communicative and a team player. You enjoy working together with various disciplines within the organization where communication with colleagues is non–hierarchical and direct.

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