DMT 31 - 39 Flashcards
1
Q
What is the Symbol Equation for Reynolds number?
A
π π= (ππ£_π π·)/π=(π£_π π·)/π£
2
Q
What does the symbols mean in Reynolds number?
A
π£_π:Flow Velocity [m/s] π·:π»π¦ππππππ π·πππππ‘ππ [π] π:π·π¦πππππ πππ πππ ππ‘π¦ [ππ/π.π ] π£=π/π:πΎππππππ‘ππ πππ πππ ππ‘π¦ [π^2/π ]
3
Q
What is the Hydraulic Diameter for a Circular Tube?
A
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4
Q
What is the Hydraulic Diameter for a square Duct?
A
_____
5
Q
What is the Hydraulic Diameter for a Rectangular Duct?
A
_____
6
Q
What is the Equation for Laminar flow Velocity
A
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7
Q
What is the pressure drop/loss Equation?
A
ππ/ππ₯= βπ/πΏ= (π_2βπ_1)/πΏ
8
Q
What is the pressure loss Equation for all types of fully developed flows?
A
βπ_πΏ=π πΏ/π· (ππ£^2 π)/2
9
Q
What is the equation for Darcy Friction Factor?
A
π= 64π/(ππ·π£_π )= 64/π π