Term
| What are the 3 types of similitude |
|
Definition
1. Dynamic
2. Kinetic
3. Geometric |
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|
Term
| Properties involving heat flow |
|
Definition
1. Specific heat
2. Specific internal energy
3. Enthalpy |
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|
Term
| What causes a pressure change in a flowing fluid |
|
Definition
1. Depth/elevation
2. Head loss
3. Acceleration
4. Viscous resistance
5. Size of flow path |
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|
Term
| Who are the 2 people who made the greatest contribution to the fundamental principles of fluid mechanics |
|
Definition
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|
Term
| The 6 ways flow patterns can be classified |
|
Definition
1. Steady
2. Non-steady
3. Uniform
4. Non-uniform
5. Turbulent
6. Laminar |
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|
Term
| What forces do fluid exert on surfaces they are in contact with |
|
Definition
1. Shearing Forces
2. Normal Forces |
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|
Term
| The 3 types of methods to develop flow patterns |
|
Definition
1. Numerical
2. Analytical
3. Experimental |
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|
Term
| Pipes in parallel have the same ________, but different _______ |
|
Definition
1. Same head losses
2. Different flow rates |
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|
Term
| What is the normal force for a fluid at rest |
|
Definition
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|
Term
| Devices to measure change in pressure |
|
Definition
1. Manometer
2. Bourden gauge
3. Strain gauge
4. Stagnation tube |
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|
Term
| What are the dimensions of Force |
|
Definition
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|
Term
| What are the dimensions of Velocity |
|
Definition
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|
Term
| What are the dimensions of Density |
|
Definition
|
|
Term
| What are the dimensions of Viscosity |
|
Definition
|
|
Term
| What are the dimensions of Diameter |
|
Definition
|
|
Term
| What are the dimensions of Surface Tension |
|
Definition
|
|
Term
| Kinetic energy correction factor for turbulent and laminar flow |
|
Definition
Laminar = 2
Turbulent = 1.05 |
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|
Term
| Pipes in series have the same ________ but different ________ |
|
Definition
1. The same Flow Rates
2. Different head losses |
|
|
Term
| What are the chemicals added to fluids to reduce head loss called |
|
Definition
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|
Term
| In a flow system, what is flow work usually a result of |
|
Definition
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|
Term
| What is the concept used in hydraulic lift and hydraulic press |
|
Definition
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|
Term
| What are full scale structures used for experimental tests |
|
Definition
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|
Term
| What are small scale structures used for design |
|
Definition
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|
Term
| How does temperature effect gas viscosity |
|
Definition
| The viscosity of gas increases with increasing temperature |
|
|
Term
| What are some applications of Fluid Mechanics |
|
Definition
1. Kitchen faucets
2. Hydroelectric
3. Thermal Power
4. Car suspension
5. Road shocks
6. Manufacturing
7. Waste disposal
8. Blood circulation |
|
|
Term
| What are the limits of dimensional analysis |
|
Definition
1. Inclusion of variables already accounted for
2. Omission of significant variables |
|
|
Term
| What is velocity distribution in a pipe directly linked to |
|
Definition
| Shear stress distribution |
|
|
Term
| How is the pressure drop in a model related to pressure drop in a prototype |
|
Definition
| They are related by the pressure coefficient |
|
|
Term
| The 2 categories that Fluid Mechanics can be divided into |
|
Definition
1. Hydrodynamics
2. Gas dynamics |
|
|
Term
|
Definition
| It can be a liquid or a gas |
|
|
Term
| What are the common dimensionless numbers |
|
Definition
1. Euler' number
2. Reynold's number
3. Mach number
4. Weber number
5. Froude number |
|
|
Term
| What is the object of dimensional analysis |
|
Definition
| To reduce the number of separate variables involved in a problem to a smaller number of independent dimensionless groups of variables |
|
|
Term
| What does gas dynamics deal with |
|
Definition
| It deals with fluids that undergo significant density changes |
|
|
Term
|
Definition
| Accreditation Board for Engineering Technology |
|
|
Term
| What are the fundamental SI units |
|
Definition
1. Meter
2. Kilogram
3. Second
4. Kelvin |
|
|
Term
| What are the fundamental US units |
|
Definition
1. Foot
2. Slug
3. Second
4. Ranking |
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|
Term
| What utilizes the change in pressure with elevation to evaluate pressure |
|
Definition
|
|
Term
| 2 roles of pressure in engineering |
|
Definition
1. Designing a building
2. Designing a fluid pump |
|
|
Term
| What type of magnitude does a static fluid exhibit |
|
Definition
| The pressure at any point in a static fluid will have the same magnitude |
|
|
Term
| What can momentum be divided into |
|
Definition
|
|
Term
| 3 assumptions made for the derivation of Bernoulli's equation from Euler's equation |
|
Definition
1. Steady state
2. Incompressible
3. Non-viscous |
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|
Term
| One common dimensionless number used frequently in fluid-flow studies |
|
Definition
|
|
Term
| What 2 things is shaft work usually a result of in the flow system |
|
Definition
| Shaft work is usually the result of a pump or turbine in the flow system |
|
|
Term
| What types of problems is the momentum equation used to analyze |
|
Definition
| The momentum equation is used to analyze problems involving forces and flow |
|
|
Term
| What is the momentum accumulation for non-steady flow |
|
Definition
|
|
Term
| What is the buoyancy force dependent on regarding a displaced fluid |
|
Definition
| Buoyancy force is dependent on the density of the displaced fluid |
|
|
Term
| How does the hydrostatic pressure vary with depth in an incompressible fluid |
|
Definition
| it varies linearly with depth |
|
|
Term
| Does stress in a Newtonian fluid depend on fluid viscosity |
|
Definition
|
|
Term
| What is the pressure in a vacuum called |
|
Definition
|
|
Term
| How will a hydrometer change as the specific gravity of the liquid increases |
|
Definition
|
|
Term
Classify the following according to whether they are intensive or extensive:
1. Specific weight
2. Density
3. Surface tension
4. Vapor pressure
5. Weight
6. Velocity
7. Specific gravity
8. Momentum
9. Force
10. Specific heat |
|
Definition
1. Specific weight (I)
2. Density (I)
3. Surface tension (I)
4. Vapor pressure (I)
5. Weight (E)
6. Velocity (I)
7. Specific gravity (I)
8. Momentum (E)
9. Force (E)
10. Specific heat (I) |
|
|
Term
| Where are energy grade lines in relation to hydraulic lines |
|
Definition
| The energy grade lines (EGL) are either greater than or equal to the hydraulic grade lines (HGL) |
|
|
Term
|
Definition
1. Gravitational
2. Electrostatic
3. Magnetic |
|
|
Term
| What are the surface forces |
|
Definition
1. Structural elements(weight)
2. Pressure elements
3. Shear stress |
|
|
Term
| When is momentum accumulation zero |
|
Definition
| When the flow is steady and other materials in the control volume are stationary |
|
|
Term
| 4 Common applications of the momentum equation |
|
Definition
1. Fluid jets
2. Nozzles
3. Vanes
4. Pipes |
|
|
Term
| What does the energy equation allow to be incorporated |
|
Definition
| The energy equation allows the incorporation of thermal energies (thermal forces) on a fluid |
|
|
Term
| What is Q if heat is transferred to the system |
|
Definition
|
|
Term
| What is W if work is done by the system |
|
Definition
|
|
Term
| What are the different forms of energy |
|
Definition
1. Kinetic
2. Potential
3. Internal |
|
|
Term
| What can work be divided into |
|
Definition
1. Shaft work
2. Flow work |
|
|
Term
|
Definition
| It is the irreversible conversion of mechanical energy to thermal energy through the viscous action of the fluid |
|
|
Term
|
Definition
| It is the theory and art of predicting prototype performance from model observations |
|
|
Term
| What are the 3 basic dimensions in dimensional analysis |
|
Definition
1. Mass [M]
2. Length [L]
3. Time [T]
All other dimensions are derived dimensions |
|
|
Term
| What is the basic and obvious requirement of similitude |
|
Definition
| It requires that the model be an exact geometric replica of the prototype |
|
|
Term
| Where is the maximum velocity located in a pipe for laminar flow |
|
Definition
| The center due to its parabolic velocity distribution |
|
|
Term
| Who was the first person to develop the basic laws of turbulent flow |
|
Definition
|
|
Term
| What chart is the friction factor 'f' obtained from |
|
Definition
|
|
Term
| Is there an exact solution or equation for turbulent flow |
|
Definition
| No, there is no exact solution or equation for turbulent flow |
|
|
Term
| What kind of chart is provided by the manufacturer for a pump |
|
Definition
| A head vs. discharge (Q) is usually provided for a pump |
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