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Offlineshambler
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Laminar flow question
    #3668768 - 01/23/05 06:37 PM (12 years, 3 months ago)

i read somewhere that the flow should be 90-100 feet per min. is that 90 cubic feet or wind speed 90 feet per min.?


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Invisibleagar
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Re: Laminar flow question [Re: shambler]
    #3668797 - 01/23/05 06:45 PM (12 years, 3 months ago)

Easy laminar flow calibration.

Fan OFF

FAN ON. Just enough that candle flame angles @ 90 degree's _without blowing OUT - everywhere inside work area.


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OfflineLanceArmstrong
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Re: Laminar flow question [Re: shambler]
    #3668834 - 01/23/05 06:55 PM (12 years, 3 months ago)

Laminar flow depends on the Reylonds number, and that depends on liquid viscousity, density, and diameter if you're calculating this for a pipe. Length (or the pipe, wing, whatever) will also play a role cause the flow will transition from laminar to turbulent if the reynolds number is too high. A good approximation is anything above 2300 is turbulent. What are you trying to do, figure out what fan specs you need or something?


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Offlineshambler
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Re: Laminar flow question [Re: LanceArmstrong]
    #3668883 - 01/23/05 07:02 PM (12 years, 3 months ago)

ya, I'm trying to decide what filter and blower to get, and after its built i want to check to see if the flow is right.


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Offlineshambler
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Re: Laminar flow question [Re: shambler]
    #3668903 - 01/23/05 07:07 PM (12 years, 3 months ago)

one more question, whats better horizontal or vertical flow? or probley doesnt matter as long the air is filtered properly.


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OfflineAnnoA
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Re: Laminar flow question [Re: shambler]
    #3668978 - 01/23/05 07:27 PM (12 years, 3 months ago)

100 feet per min is the recomendation .

If the flame of the candle candle goes down like that, the speed is way higher than 100 ft/min .


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Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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