lightng

5+ Year Member
May 3, 2014
39
0
Status
Pre-Medical
If the volumetric flow rate is to remain constant, that means the same amount of volume will be moving from one area to the next regardless of how you alter the cross sectional area or velocity (since there will be compensation in the other variable)


How then, can it be that when you increase the cross sectional area, that blood would spend more time within the heat exchanger (in the question above) despite its velocity decreasing? Wouldn't a greater area of liquid just move past resulting in no net change?

Obviously there's something missing with the way that i'm thinking about this. Would love some input
 
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TheLongGame

2+ Year Member
Sep 4, 2016
68
49
Status
Medical Student
ImageUploadedBySDN1473552957.919928.jpg

Don't confuse volumetric flow rate with fluid velocity!

(In the above picture v1&v2 are fluid velocities)

Hope this clears it up! (And yes...it's a paper plate)


Sent from my iPhone using SDN mobile
 
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