- #1
puedpued
- 3
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Hi guys,
I am really new to the concept of aerodynamics and really need some guidance for my university project.
First of all, I am going to make a DIY windtunnel based on this project http://www.instructables.com/id/DIY-Wind-Tunnel-20-Project-Paperclip/
The size of the testing section needs to be 60cm x 60cm (or 24" x 24"). I am aiming to achieve a windspeed approximately at 10-20 m/s. So my question is what kind of fan do I need? Would I need some thing like an industrial fan such as this: http://www.bunnings.com.au/dynabreeze-60cm-blue-industrial-drum-fan_p4440780
Or should i make some thing like this so I can control the fan speed with PWM :
http://www.instructables.com/id/PC-Box-Fan/
So for a 120mm fan, the flow rate is usually between 50~75 CFM. I have no idea how to convert this to m/s and if I use 25 fans, would this mean I just need to add the CFM together?
I am afraid that the industrial maybe too strong and the PC fan box may not be strong enough. Please give me some guidance.
Thank you for your time and help :)
I am really new to the concept of aerodynamics and really need some guidance for my university project.
First of all, I am going to make a DIY windtunnel based on this project http://www.instructables.com/id/DIY-Wind-Tunnel-20-Project-Paperclip/
The size of the testing section needs to be 60cm x 60cm (or 24" x 24"). I am aiming to achieve a windspeed approximately at 10-20 m/s. So my question is what kind of fan do I need? Would I need some thing like an industrial fan such as this: http://www.bunnings.com.au/dynabreeze-60cm-blue-industrial-drum-fan_p4440780
Or should i make some thing like this so I can control the fan speed with PWM :
http://www.instructables.com/id/PC-Box-Fan/
So for a 120mm fan, the flow rate is usually between 50~75 CFM. I have no idea how to convert this to m/s and if I use 25 fans, would this mean I just need to add the CFM together?
I am afraid that the industrial maybe too strong and the PC fan box may not be strong enough. Please give me some guidance.
Thank you for your time and help :)