Stromlinienkörper (Asking for help building streamline bodies for aerodynamic experiements)

  • Thread starter uztrewq3
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uztrewq3
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Please take care to post in English on PhysicsForums
Summary:: .

Hallo, für meine Facharbeit in Physik will ich ein Experiment mit einem (oder zwei) Stromlinienkörper machen. Eigentlich wollte wollte ich das Modell mit einem 3D drucker machen aber das geht jetzt doch nicht. Habt ihr vielleicht eine Idee, was für ein Modell ich für die Versuche verwenden kann und könnte man ein Stromlinienkörper basteln?
 

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  • #2
Baluncore
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Google translate...
Streamline Body
Hello, for my thesis in physics I want to do an experiment with one (or two) streamline bodies. Actually I wanted to make the model with a 3D printer but that's not possible now. Do you perhaps have an idea what kind of model I can use for the experiments and could a streamlined body be made?
 
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  • #3
Baluncore
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Welcome to PF where the English language is used.

What size bodies? How long? What section?

They might be turned in a lathe, or carved from a block of wood or modeling clay.
 
  • #4
uztrewq3
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Thanks for your reply. I try in English..
The model should be hand-sized .. more or less. I like the idea of modeling clay. I look up for it but it must be heat resistant bc. I am going it use a hairdryer to simulate the air flow
 
  • #5
Tom.G
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must be heat resistant bc. I am going it use a hairdryer to simulate the air flow
The ones sold here in the US, you can turn off the heat of hair dryers.
Or ask someone in the Electrical department to disconnect the heater.

There is also clay sold that can be baked in a kitchen oven to harden it.
(Again, here in the US. :frown: )

Cheers,
Tom
 
  • #6
Klystron
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In order of least to greatest expense, model makers at NASA wind tunnels used aircraft-quality wood, polished aluminum and stainless-steel pieces for scale model experiments. Molded synthetic plastics form proper shapes but may deform under test.

Old time experimenters often used fabric covered frames impregnated with metalic paints. Clay seems friable, likely to crumble and crack even using a hair dryer. Several coats of acrylic paint should help. Also consider using parts from model aircraft kits, if allowed.

I presume the hair dryer is used to direct air flow? Consider a small fan such as Vornado sells. Then direct the flow with a cardboard cylinder or aluminum heat duct slightly larger than the fan. Mount your model normal to air flow and normal to gravity, so vertically.

Heat should not be a problem as you want to carefully record temperatures during your experiments as part of your data set. How do you plan to measure aerodynamic forces? Strain gauges are outside my area but others here can help you.
 

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