Flow Rate
How does a blockage affect the expected flow rate?
Using the hagen-poiseuille equation fror expected blood flow, how would a blockage of halving the cross sectional area of the vessel effect the expected flow rate?
Q = (/_\P x pi x r^4) / (8 x viscosity x length of vessel)
is it as simple as halving the radius?
Yes, but take ½ the area, not ½ the radius. Since for a circle, area = πr², the radius would be √2 / 2 times the initial radius.
![]() |
![]() AQUARIUM TANK PROTEIN SKIMMER FILTER W/POWER HEAD PUMP US $104.95
|
![]() AQUARIUM REEF RO DI REVERSE OSMOSIS FILTRATION SYSTEM US $132.00
|
![]() REEF AQUA + HOME RO DI REVERSE OSMOSIS WATER FILTRATION US $152.00
|
![]() Aqua Ultraviolet Classic 8 Watt - A00005 (with wiper) US $198.88
|
![]() PVC Float Fill Valve Autofill - 3/8" MIPT - 23161 US $38.88
|
![]() Ecotech Marine MP40W gen 2 Vortech pump/controller used US $345.00
|
![]() LIVING WORLD DYNAFLO 10 GAL POWER FILTER AQUARIUM FISH US $18.69
|
![]() LIVING WORLD DYNAFLO 30 GAL POWER FILTER AQUARIUM FISH US $33.95
|
![]() AQUATEC 8800 BOOSTER PUMP REVERSE OSMOSIS + TRANSFORMER US $94.99
|
![]() Iwaki WMD20RLT Pump American Motor 420 GPH US $148.95
|
![]() Iwaki WMD30RLXT Water Pump American Motor 960 GPH US $179.82
|
![]() Super Activated Aquarium Reef Carbon 20 Lb Pound Pellet US $49.50
|
![]() Aquarium Siphon Vacuum Cleaner Manual Pump Fish Tank US US $.01
|
![]() Aquarium Gravel Filter Water Pump Vacuum Cleaner Siphon US $.99
|
![]() 18W AQUARIUM ULTRAVIOLET STERILIZER FISH POND UV FILTER US $74.99
|
![]() Electric Algae Cleaner Fish Tank Water Pump Tube Filter US $.99
|
![]() Hydor Koralia 4 1200gph pumps/wavemaker (3 available) US $26.00
|
![]() REVERSE OSMOSIS WATER FILTER REPLACEMENT PACKAGE 4PCS US $1.50
|
![]() Aquarium Fish Tank Water Pump Gravel Cleaner 6' SIPHON US $.01
|
![]() WATER-GENERAL AQUARIUM REEF OSMOSIS RO+DI FILTER SYSTEM US $145.50
|
![]() 2x1320GPH Wave Maker Water Pump Aquarium Tank Powerhead US $2.99
|
![]() FINNEX Aquarium Canister Filter for 10 15 20 Gallon US $24.99
|
![]() 42 GALLON HEXAGON FISH TANK AQUARIUM US $229.95
|
![]() CASCADE 1500 CANISTER FILTER FISH TANK AQUARIUM CCF5UL US $159.99
|
![]() CASCADE 1000 CANISTER FILTER FISH TANK AQUARIUM CCF3UL US $99.99
|
![]() Selling a Single Large Polyp of a Bright Red Mushroom US $1.99
|
![]() BLACK STEALTH QUIET AQUARIUM OVERFLOW BOX 800GPH US $56.00
|
![]() Dial Adjustable Brass Float Valves, Aquarium Water Tank US $12.49
|
![]() HYDOR KORALIA 1 PUMP/POWERHEAD US $20.99
|
![]() HYDOR KORALIA MINI/NANO PUMP/POWERHEAD US $17.99
|
![]() HYDOR KORALIA 2 PUMP/POWERHEAD US $25.99
|
![]() Aquarium Siphon HANG ON Overflow Box, 3000LPH,NIB !!!!! US $68.88
|
![]() New 36 Watt UV Sterilizer Up to 360 Gallon Aquarium US $59.99
|
![]() Aquarium Fish Tank 300W Electronic Heater Thermostat US $27.55
|
![]() New Aquarium Fish Tank Electric Protein Skimmer 150L/h US $27.55
|
![]() New 3in1 Submersible Aquarium Fish Tank Air Pump Filter US $11.93
|
![]() New Submersible Aquarium Fish Air Water Pump Filter AU US $16.52
|
![]() 2M Long Fish Tank Siphon Vacuum Cleaner Pump NEW US $7.34
|
![]() Electrical Submersible Aquarium Fish Air Pump Filter AU US $16.52
|
![]() LAGUNA POND WATERFALL FILTRATION SYSTEM. NEW! US $420.00
|
![]() LAGUNA KOI, FISH POND SKIMMER FILTER SYSTEM US $444.00
|
![]() 9 pcs Aquarium Fish Plastic Flower Plants Ornament new US $9.18
|
![]() NEW VACUUM SIPHON PUMP CLEANER FOR AQUARIUM FISH TANK US $6.34
|
![]() 800L/H Submersible Aquarium Fish Air Water Pump Filter US $.91
|
![]() 2 Seio 1500 Super Flow with Taam Magnet Mount US $85.00
|
![]() REFUGIUM FILTER KIT FOR REEF AQUARIUM 10 GALLON KIT US $32.00
|
![]() Aquarium Algae Tube Filter Water Pump Cleaner Battery US $1.48
|
![]() 300 GPH Submersible aquarium pump With FREE Bio Filter US $29.00
|
![]() Sumbersible Koi Pond/Fountain Pump - 1450 GPH!!! US $79.95
|
![]() SUBMERSIBLE KOI POND/WATERFALL PUMP TH-400 4900gph!!! US $349.95
|
![]() Two Otto PH1200 Powerheads with 1 replacement impeller. US $39.95
|
![]() HUGE AQUARIUM TANK PROTEIN SKIMMER FILTER W/POWER PUMP US $109.95
|
![]() only 43 Watts 650 gph water pump FREE LOCK LINE US $29.99
|
![]() Penguin 100 Bio-Wheel Aquarium Filtration System Filter US $15.99
|
![]() REEF AQUARIUM DI+ HOME REVERSE OSMOSIS WATER FILTRATION US $167.20
|
![]() Hagen Fluval 3 Plus Internal Fish Aquarium Filter US $46.99
|
![]() Oceanic Bio Cube Aquarium 14 Gallon BioCube Saltwater US $280.00
|
![]() Oceanic Bio Cube Aquarium 29 Gallon BioCube Reef US $355.00
|
![]() 36W AQUARIUM UV STERILIZER POND FILTER POND FISH TANK US $84.95
|
![]() AquaClear 50 /200 Aquarium Power Filter Aqua Clear A610 US $25.01
|
![]() AquaClear 70 /300 Aquarium Power Filter Aqua Clear A615 US $33.00
|
![]() AquaClear 110 Aquarium Power Filter 500 Aqua Clear A620 US $49.99
|
![]() New Hagen FLUVAL 205 Canister Fish Aquarium Filter A206 US $129.99
|
![]() New Hagen FLUVAL 405 Canister Fish Aquarium Filter A216 US $199.99
|
![]() Air Line Rate Flow Regulator (B. Braun) US $3.00
|
![]() Dolphin 5 Air pump 4 outlet fully adjustable SILENT US $27.99
|
![]() TETRA POND UV STERILIZER UV1. HANDLES 1800 GALS. NEW! US $99.99
|
![]() TETRA POND UV STERILIZER MINI. HANDLES 660 GALS. NEW! US $84.99
|
![]() FLUVAL 205 AQUARIUM FILTER. USA'S #1 FLUVAL DEALER. US $134.99
|
![]() AQUARIUM FISH TANK PROTEIN SKIMMER FILTER 180 W/ PUMP US $41.95
|
![]() NEW MARINELAND MAXI JET 1200 POWER HEAD AQUARIUM PUMP US $9.99
|
![]() Fluval 405 Canister Filter 340 GPH A216 US $234.99
|
![]() New Rena Filstar Canister Filter XP4 450GPH Up to 265g US $169.99
|
![]() 3200GPH DUAL TWIN POWER HEAD PUMP SALTWATER FISH TANK US $17.24
|
![]() Seachem Matrix Carbon 250 mL (2 BOTTLES 500 ML) FISH US $9.99
|
![]() Fluval G G6 Advanced Filtration Aquarium Canister A412 US $499.99
|
![]() Fluval 304 Canister Filter US $43.00
|
![]() NEW ASM G5 PROTEIN SKIMMER W/ 2 X SEDRA 9000 PUMPS US $499.95
|
![]() NIB ASM G4 PROTEIN SKIMMER W/ SEDRA 5000 PUMP US $367.95
|
![]() NEW Fluval FX5 Canister Filter w/Foam Carbon & Pads US $339.99
|
![]() ASM G4 Plus Reef Aquarium Protein Skimmer Sedra pump US $439.99
|
![]() ASM G1 Reef Aquarium Protein Skimmer w/pump US $239.99
|
![]() 3700 GPH Mag Drive Submersible Pond and Waterfall Pump US $199.99
|
![]() 950GPH SUBMERSIBLE MULTI-USE FLOW ADJUSTABLE WATER PUMP US $43.99
|
![]() 950GPH FOUNTAIN KOI POND AQUARIUM WATER PUMP ADJUSTABLE US $43.99
|
Physics II A1- Volume Flow Rate Part I


US $104.95



















































































