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July 28, 2011, 02:28 |
Sudden expansion
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#1 |
Senior Member
Govindaraju
Join Date: Apr 2010
Posts: 209
Rep Power: 17 |
Dear friends
I have a question on fluid mechanics. a 6cm dia pipe expands gradually to 9 cm dia pipe. walls of expansion section are angled 10 degree from the horizontal. if the flow exit from smaller to bigger dia pipe there is a flow separation in the downstream flow for certain length and then the flow becomes fully developed . How to calculate exactly the distance from the start of expansion to the fully developed flow starts in the downstream flow? Thanks Regards Govind |
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July 28, 2011, 02:33 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
Put a line across the downstream flow and take a velocity cross section. Then push the line downstream until the velocity is fully developed to within a tolerance you specify.
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July 28, 2011, 11:27 |
sudden expansion
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#3 | |
Senior Member
Govindaraju
Join Date: Apr 2010
Posts: 209
Rep Power: 17 |
Quote:
Thanks Regards Govind |
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July 28, 2011, 18:35 |
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#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
What do you mean by mathematical? My description is mathematical.
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