問題一覧
1
Deals with the velocities and streamlines without considering forces of energy
Fluid Kinematics
2
Is a system in which working substance does not cross it's boundaries but energy crosses it's boundaries.
Closed System
3
Is a pressure measuring instrument, used to measure atmospheric pressure
Barometer
4
is the simplest form of Manometer, which is a tube tapped into wall of a container or conduit for the purpose of measuring the pressure
Piezometer
5
is the study of the mechanics of fluids at rest
Fluid Statics
6
is the resistance of fluid to change its volume in a confined space
Compressibility
7
the curved free surface of a liquid in a capillary tube
Meniscus
8
is a measure of the resistance to flow of a fluid, or it may be defined as the ratio of the shearing stress or force between adjacent layers of fluid
Viscosity
9
work required to move the fluid through the control volume due to its own mass.
Flow Work or Flow Energy
10
can be viewed as a conservation of energy law for a flowing fluid
Bernoulli's Equation
11
is the most commonly used pressure measuring instrument
Bourdon Gauge
12
is one in which there is no friction nor viscosity
Ideal or Perfect Fluid
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Characterized by smooth streamlines highly ordered motion
Laminar Flow
14
Characterized by velocity fluctuation and highly disordered motion
Turbulent Flow
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is encountered when highly viscous fluids such as oils flow in small pipes or narrow passages.
Laminar Flow
16
discovered that the flow regime depends mainly on the ratio of inertial forces to viscous forces in the fluid.
Osborne Reynolds
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This ratio is also called
Reynolds Number
18
usually taken to be the distance from the pipe entrance
Hydrodynamic Entry Length
19
fully developed internal flows laminar or turbulent
Pressure Loss
20
fully developed internal flows laminar or turbulent
Head Loss
21
-use to overcome pressure loss
Pumping Power
22
rapid fluctuations of swirling regions
Eddies
23
friction factor in fully developed turbulent pipe
Moody Chart
24
losses due to fittings, valves, bends, elbows, tees..
Minor Losses