3d printing some test ducts for a 50mm EDF fan mounted on a racing quad brushless motor. Will put them on a stand with a load cell and compare performance in static thrust.
Both ducts are roughly the same length and neck in to the same ID past the blades so tip losses & recirculation should be the same on both. One has a more aggressive intake and the leftover length is put into a larger exhaust nozzle. The other has a more symmetric intake and exhaust. Which one will work better? I will run tests in maybe 12h and post results if interest. Baseline to compare to is data from an off the shelf 50mm EDF.
Side note, the external geometry and its impact on vehicle aerodynamics is not going to be doing anything in a static thrust test so everything outside of the variable ID should have minimal effect on the results.
Both ducts are roughly the same length and neck in to the same ID past the blades so tip losses & recirculation should be the same on both. One has a more aggressive intake and the leftover length is put into a larger exhaust nozzle. The other has a more symmetric intake and exhaust. Which one will work better? I will run tests in maybe 12h and post results if interest. Baseline to compare to is data from an off the shelf 50mm EDF.
Side note, the external geometry and its impact on vehicle aerodynamics is not going to be doing anything in a static thrust test so everything outside of the variable ID should have minimal effect on the results.
