Air Diffuser
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Huge Big Daddy Air Stone Diffuser Hydroponic 2" x 2" |  |
0 Bid | US $1.00 | 1d 8h 25m |
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Air Stone / Round Diffuser 3" / Weighted | |
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US $2.97 | 15d 17h 51m |
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DEEP WATER MICRO PORE SINGLE AIR STONE DIFFUSER HYDROPONIC AEROPONIC DWC | |
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US $22.90 | 1d 5h 45m |
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Active Aqua Flexible Air Stone 4 ft feet - hydroponics aeroponics diffuser | |
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US $9.99 | 5d 10h 57m |
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Ecoplus 8" inch Air Stone Diffuser - dwc hydroponic aquarium reservoir aeroponic | |
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US $4.49 | 6d 8h 5m |
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Deep Water SINGLE XL Micro Pore Air Diffuser - airstone oxygen reservoir | |
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US $30.00 | 6d 7h 53m |
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QTY:10 AIR STONE 8" DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $29.99 | 11d 3h 46m |
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(2) Wooden air diffuser wood airstone air stone 3" USA | |
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US $4.50 | 28d 7h 17m |
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DEEP WATER INNOVATIONS MICRO-PORE OXYGEN DIFFUSER AIR STONE DOUBLE XL | |
1 Bid | US $5.00 | 4d 16h 45m |
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ECOPLUS ROUND AIR STONE DISC 4" DIFFUSER HYDROPONICS AQUARIUM | |
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US $12.99 | 9d 2h 18m |
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AIR STONE 4" ECOPLUS DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $3.29 | 9d 6h 25m |
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Active Air 4 ft feet Flexible Air Diffuser Airstone | |
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US $13.34 | 2d 12h 12m |
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QTY:2 AIR STONE 8" DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $7.99 | 11d 3h 44m |
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Deep Water SINGLE Micro Pore Air Diffuser - airstone dwc oxygen reservoir | |
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US $22.95 | 6d 7h 53m |
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Deep Water DOUBLE Micro Pore Air Diffuser - airstone dwc reservoir aquarium | |
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US $37.59 | 6d 7h 53m |
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3'ft Flexible Air Diffuser Aerator Aquarium Pond Hydroponics Garden Active Aqua | |
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US $9.00 | 20d 4h 24m |
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Air Stone / Cylinder Diffuser 1.5" / Weighted | |
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US $1.39 | 17d 3h 20m |
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Oxygen Shield Air Diffuser OS1 - airstone hydroponics aquarium water pump | |
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US $29.99 | 26d 8h 14m |
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Air Diffuser 2 ft Air Diffuser | |
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US $4.20 | 27d 13h 42m |
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AIR STONE 8" ECOPLUS DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $4.49 | 17d 7h 14m |
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Air Diffuser
Air diffuser stone(10pts to best asnwer)?
what is the difference between Corse, Fine, And slim bubbles by Lee's discard-a-stone air diffuser?
The different sizes on the diffusers, are just to regulate the flow of air in the water.
Slim, small air flow, small Co2 amounts 1-10 gallons
Fine. Slightly larger air flow with larger Co2 amounts. 10- 20 gallons.
Coarse, largest amount of air flow and Co2 For larger tanks 30 gallons plus.
SERIOUSLY 3 THUMBS DOWN??????? BUT NO ONE EVEN POSTED ANOTHER RESPONSE???????????
IF U ARE GOING TO THUMBS DOWN A POST MAYBE JUST MAYBE YOU COULD PUT SOMETHING USEFUL TO SHOW WHY I WAS WRONG
IDIOTS
Marineland LED Bubble Wand Air Diffuser At Night
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Huge Big Daddy Air Stone Diffuser Hydroponic 2" x 2" | |
0 Bid | US $1.00 | 1d 8h 25m |
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Air Stone / Round Diffuser 3" / Weighted | |
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US $2.97 | 15d 17h 51m |
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DEEP WATER MICRO PORE SINGLE AIR STONE DIFFUSER HYDROPONIC AEROPONIC DWC | |
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US $22.90 | 1d 5h 45m |
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Active Aqua Flexible Air Stone 4 ft feet - hydroponics aeroponics diffuser | |
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US $9.99 | 5d 10h 57m |
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Ecoplus 8" inch Air Stone Diffuser - dwc hydroponic aquarium reservoir aeroponic | |
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US $4.49 | 6d 8h 5m |
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Deep Water SINGLE XL Micro Pore Air Diffuser - airstone oxygen reservoir | |
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US $30.00 | 6d 7h 53m |
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QTY:10 AIR STONE 8" DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $29.99 | 11d 3h 46m |
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(2) Wooden air diffuser wood airstone air stone 3" USA | |
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US $4.50 | 28d 7h 17m |
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DEEP WATER INNOVATIONS MICRO-PORE OXYGEN DIFFUSER AIR STONE DOUBLE XL | |
1 Bid | US $5.00 | 4d 16h 45m |
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ECOPLUS ROUND AIR STONE DISC 4" DIFFUSER HYDROPONICS AQUARIUM | |
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US $12.99 | 9d 2h 18m |
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AIR STONE 4" ECOPLUS DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $3.29 | 9d 6h 25m |
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Active Air 4 ft feet Flexible Air Diffuser Airstone | |
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US $13.34 | 2d 12h 12m |
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QTY:2 AIR STONE 8" DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $7.99 | 11d 3h 44m |
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Deep Water SINGLE Micro Pore Air Diffuser - airstone dwc oxygen reservoir | |
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US $22.95 | 6d 7h 53m |
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Deep Water DOUBLE Micro Pore Air Diffuser - airstone dwc reservoir aquarium | |
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US $37.59 | 6d 7h 53m |
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3'ft Flexible Air Diffuser Aerator Aquarium Pond Hydroponics Garden Active Aqua | |
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US $9.00 | 20d 4h 24m |
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Air Stone / Cylinder Diffuser 1.5" / Weighted | |
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US $1.39 | 17d 3h 20m |
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Oxygen Shield Air Diffuser OS1 - airstone hydroponics aquarium water pump | |
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US $29.99 | 26d 8h 14m |
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Air Diffuser 2 ft Air Diffuser | |
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US $4.20 | 27d 13h 42m |
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AIR STONE 8" ECOPLUS DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $4.49 | 17d 7h 14m |
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Air Stone / Round Diffuser 5" / Weighted | |
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US $4.64 | 25d 16h 16m |
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Huge Mac Daddy Air Stone Diffuser Hydroponic 2" x 4" | |
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US $4.50 | 24d 12h 30m |
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Ecoplus Medium Round Air Stone Diffuser 10 Pack - eco plus aquarium cylinder | |
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US $33.95 | 6d 8h 22m |
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4" Round air stone aeroponic airstone diffuser disc hydroponic | |
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US $13.50 | 23d 1h 23m |
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Active Aqua 8.5" inch Air Stone Round Disc - hydroponics aeroponics diffuser | |
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US $28.24 | 5d 10h 57m |
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Oxygen Shield Air Diffuser OS2 - airstone hydroponics aquarium water pump | |
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US $38.99 | 26d 8h 14m |
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Oxygen Shield Air Diffuser OS5 - airstone hydroponics aquarium water pump | |
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US $19.99 | 26d 8h 14m |
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Oxygen Shield Air Diffuser OS3 - airstone hydroponics aquarium water pump | |
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US $49.99 | 26d 8h 14m |
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Air Oxy Stone round medium diffuser 2 ct. bubbler hydro | |
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US $6.88 | 25d 2h 28m |
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REVITALIZER AIR DIFFUSER CLEANER MICRO-PORE HYDROPONIC | |
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US $22.99 | 21d 4h 25m |
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8" Air Stone Diffuser Hydroponic (Pack of 2) | |
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US $4.90 | 22d 14h 9m |
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5 NEW Air Stone 4" Diffuser 4 inches Aerates Crculate Water Pond Reservoir QTY:5 | |
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US $9.90 | 23d 8h 7m |
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25 Wooden air diffusers Wood airstone air stone sm USA | |
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US $25.00 | 29d 7h 7m |
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Deep Water Single Micro Pore Air Diffuser DWC Oxygen Reservoir Airstone | |
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US $20.99 | 24d 6h 53m |
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(Pack of 6) 8" Air Stone Diffuser Hydroponic | |
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US $12.50 | 16d 14h 25m |
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Air Oxy Stone round medium diffuser 6 ct. bubbler hydro uses 1/4" tubing | |
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US $19.88 | 11d 6h 59m |
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6" inch Air Stone Diffuser Aerator Aquarium ActiveAqua Hydroponics Hydrofarm | |
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US $6.00 | 20d 4h 25m |
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Air Stone / Clam Shell Diffuser 4" / Weighted | |
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US $3.52 | 15d 18h 14m |
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Active Aqua 7" Dia Ring Air Diffuser w/ Mesh Bag | |
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US $33.43 | 22d 19h 26m |
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FLEXIBLE AIR DIFFUSER AIRSTONE 4 FEET ECO PLUS | |
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US $8.75 | 20d 1m |
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Hydrofarm 4" Air Stone Airstone 4 inches Pond Diffuser | |
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US $3.50 | 18d 10h 18m |
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2 Wooden air diffuser wood airstone air stone sm USA | |
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US $2.50 | 15d 8h 10m |
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Active Aqua 7" Dia Ring Air Stone Diffuser w/ Mesh Bag | |
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US $33.70 | 19d 8h 44m |
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NEW Active Aqua 7" Dia Ring Air Diffuser w/ Mesh Bag | |
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US $33.70 | 19d 8h 44m |
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Ecoplus Large Round Air Stone Diffuser - hydroponics eco plus aquarium cylinder | |
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US $9.99 | 6d 8h 23m |
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Ecoplus 6" inch Air Stone Diffuser - dwc hydroponic aquarium reservoir aeroponic | |
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US $4.25 | 6d 8h 6m |
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Air Stone / Diffuser 6" / 15cm | |
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US $2.32 | 15d 18h 14m |
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Active Aqua 4" inch Air Stone Round Disc - hydroponics aeroponics diffuser ASRD4 | |
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US $13.49 | 5d 10h 58m |
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Air Stone / Diffuser 4" / 10cm | |
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US $1.85 | 15d 17h 57m |
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Air Oxy Stone round medium diffuser 2 ct. bubbler hydro FREE SHIPPING | |
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US $13.88 | 11d 6h 55m |
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Active Aqua 4" inch Round Air Stone Disc Diffuser Aeroponics Hydroponics (AS4RD) | |
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US $13.50 | 12d 5h 51m |
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EcoPlus Large Round Air Stone Oxygen Diffuser Eco Plus | |
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US $5.85 | 9d 14h 11m |
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Active Aqua Flexible Air Stone 2 ft feet - hydroponics aeroponics diffuser | |
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US $6.99 | 5d 10h 57m |
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QTY:5 AIR STONE 4" ECOPLUS DIFFUSER DWC HYDROPONIC | |
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US $9.99 | 10d 2h 2m |
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Air Diffuser 3 ft | |
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US $5.99 | 14d 11h 49m |
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Air Oxy Stone round medium diffuser 10 ct. bubbler hydro uses 1/4" tubing | |
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US $34.88 | 11d 6h 58m |
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Pond Air Pump 110 lpm w/ (12) 4" round diffusers & hose | |
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US $195.29 | 15d 18h 38m |
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Active Aqua 4" 4 inch Air Stone Diffuser AirStone Aeroponic Water 4" Air Stone | |
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US $4.95 | 10d 8h 42m |
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AIR STONE 6" ECOPLUS DIFFUSER DWC HYDROPONIC AEROPONIC | |
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US $4.25 | 9d 55m |
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2 pcs NEW Large Round Air Stone Cylinder Diffuser Active Auqa Pond Circulation | |
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US $9.85 | 7d 9h 34m |
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2 NEW Large Round Air Stone Cylinder Diffuser Active Aqua EcoPlus | |
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US $9.85 | 7d 9h 35m |
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2 pcs- EcoPlus Large Round Air Stone Diffuser Eco Plus | |
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US $9.85 | 8d 11h 26m |
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Active Aqua Flexible Air Stone 3 ft feet - hydroponics aeroponics diffuser | |
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US $8.99 | 5d 10h 57m |
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Air Stone / Diffuser 12" / 30cm | |
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US $3.71 | 8d 5h 17m |
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Air Diffuser 4 ft Air Diffuser | |
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US $7.45 | 4d 9h 2m |
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Ecoplus Small Round Air Stone Diffuser - hydroponics eco plus aquarium cylinder | |
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US $5.99 | 6d 8h 22m |
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ECOPLUS LARGE ROUND AIR STONE DIFFUSER AIRSTONE HYDRO | |
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US $9.99 | 5d 2h 17m |
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4" 4 inch Airstone Diffuser Aeroponics Hydro air stone | |
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US $5.00 | 2d 12h 12m |
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Deep Water BOSS HOG Micro Pore Air Diffuser - airstone oxygen aquarium reservoir | |
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US $63.23 | 6d 7h 53m |
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Deep Water HOG Micro Pore Air Diffuser - airstone dwc 6" reservoir aquarium | |
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US $42.95 | 6d 7h 53m |
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Physics question about air flow?
Consider a steady flow of air through the diffuser portion of an axisymmetric wind tunnel. The air speed along the center line decreases from a value of 10 m/s at x=0 to 5 m/s at x=2 meters. The wall of the diffuser is a conical surface whose radius at the entrance is 1.0 meter.
What is an expression for the centerline speed as a function of x?
What is the acceleration along the centerline at x=1 meter?
Assuming no compression, the halving of velocity at x=2 means a doubling of the area of the expanding conical section; thus its radius has increased to sqrt(2) * the inlet value, and if sampled every 2 m, the radius is an arithmetical series: 1+0*(sqrt(2)-1), 1+1*(sqrt(2)-1), 1+2*(sqrt(2)-1), etc.
radius(x) = 1+x/2*(sqrt(2)-1)
area(x)/area(0) = (1+x/2*(sqrt(2)-1))^2 / 1^2
centerline speed
v(x) = 10*area(0)/area(x) = 10 / (1+x/2*(sqrt(2)-1))^2 m/s
spatial speed gradient
dv/dx = -10*(sqrt(2)-1)/(1+x/2*(sqrt(2)-1))^3 (m/s)/m
acceleration dv/dt = dx/dt*dv/dx = v(x)*dv/dx
At x=0,
v(x) = 10 m/s
dv/dx = -4.142 (m/s)/m
acceleration = -41.42 m/s^2
keystoneairsys
hvac, centrifugal fans, axial flow fans, volume control air dampers, centrifugal spot humidifier units, air washer internal equipments, air distribution louvers for humidification plant, supply air diffusers, rotary air filters, air handling units,