Pro/Forums - View Single Post - Performance Vs Noise

bobo5195 · 12-14-2005, 11:10 AM

underbyte - doesn't that go away if you push with the fan instead of pulling through the radiator . The radiator then acting as a lamina flow guide before air is pushed into the fan.

The procedure has a number of things going for it, providing a good rad can be found for testing and the shroud was well sealed with a some nice liquid manometers then this could be an excellent test rig. Within 5% is good enough for me and repeated tests / a few different rads could help things.

It has the major advantage that most of the stuff is readily available in the community and is cheap (no digital meters, a lot of stuff that ppl have hanging around). Most importantly it’s measuring real life, exactly how someone would run a rad with a shroud.

You should try at longer lengths bill just to confirm you could well just be hitting a resonance point caused by the waterfronts coming of the fan. ½ dia seems to close to me, but I could well be wrong.

12-14-2005, 11:10 AM	#37
bobo5195 Cooling Savant Join Date: Aug 2005 Location: uk Posts: 400	Re: Performance Vs Noise - Experimentation underbyte - doesn't that go away if you push with the fan instead of pulling through the radiator . The radiator then acting as a lamina flow guide before air is pushed into the fan. The procedure has a number of things going for it, providing a good rad can be found for testing and the shroud was well sealed with a some nice liquid manometers then this could be an excellent test rig. Within 5% is good enough for me and repeated tests / a few different rads could help things. It has the major advantage that most of the stuff is readily available in the community and is cheap (no digital meters, a lot of stuff that ppl have hanging around). Most importantly it’s measuring real life, exactly how someone would run a rad with a shroud. You should try at longer lengths bill just to confirm you could well just be hitting a resonance point caused by the waterfronts coming of the fan. ½ dia seems to close to me, but I could well be wrong.