Mini Bladeless Fan

thingiverse

After examining the designs from Helix3D, I decided to give one a try but encountered some issues with it. His design was huge (140mm), printed in large parts with numerous supports, requiring glue to hold it together and consuming almost an entire spool of filament. I discovered valuable information on this researchgate.net webpage: https://www.researchgate.net/publication/288180188_Numerical_investigation_of_geometric_parameter_effects_on_the_aerodynamic_performance_of_a_Bladeless_fan, featuring cross-sections and charts that reveal which parameters have the greatest impact on performance. I then created a version tailored to an 80mm fan, allowing it to be printed in separate pieces and snapped together, making it a more manageable print job. As Helix3D found out, despite its functionality with a basic axial computer fan, those fans lack sufficient pressure to effectively drive the bladeless design. Ultimately, I can say that this design provides almost as much airflow as the computer fan alone. Maybe I'll attempt designing a turbine compressor next. (Update: 1/26/18, see https://www.thingiverse.com/thing:2771339 for a turbine base) Enjoy!