Aerodynamics describes the behaviour of bodies during flow around or through bodies with a compressible fluid. The purpose of experiments in aerodynamics is familiarisation with and optimisation of drag and the flow field around a body. This knowledge has a significant influence on the development of means of transport (vehicles, ships, aircraft) and in architecture (skyscrapers, towers and bridges). Aerodynamics also plays a key role in the construction of pipelines and turbo machines.
  HM 225 offers – along with its accessories – typical experiments from the field of flow around, incident flow and flow through models, as well as further experiments in the field of steady incompressible flow.
  The trainer includes a radial fan, which can be used to generate flow velocities up to 40m/s. The speed is infinitely adjustable by using a frequency converter. A stabilisation tank with flow straightener ensures a consistent, low-turbulence and reproducible flow in the measurement section. A carefully shaped nozzle provides a largely homogeneous velocity distribution of the air flow. The accessory is attached using quick release fasteners and can be interchanged quickly and easily. Measuring points along the measurement section allow pressure and velocity measurements to be taken. The tube manometer, 16-fold (HM 225.01) is required to be able to show the pressures clearly.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. 
  

Together with appropriate accessories: experiments from the field of flow around bodies
- velocity measurement of flows with Pitot tube
- boundary layer analysis on a flat plate with flow

  along the plate
- drag of bodies
- demonstration of the Coanda effect
- visualisation of streamlines
 

Together with appropriate accessories: experiments from the field of steady incompressible flow
- velocity measurement of flows with Pitot tube and

  Pitotstatic tube
- free jets
- flow in a pipe elbow
- proof of Bernoulli's principle