aerodee Word Scramble
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| Question | Answer |
| Stagnation pressure | The pressure at a point where the fluid is brought to a complete stop isentropically |
| Which principles does the venturi meter use? | Continuity and Bernoulli's eqs. |
| Mention four properties of ideal fluids | 1. Non viscous and incompressible 2. Slip condition is observed 3. Euler and Bernoulli's eqns are used 4. Simple equations are used |
| In which case is the Bernoulli's equation used? | It is used for steady, incompressible flow along a streamline in inviscid regions of flow. |
| What is a fluid? | Substance which deforms continually under shear stress of any magnitude. |
| Uniform flow | All parameters are equal at every point in the fluid. Positional |
| Non uniform | All flow parameters variate in magnitude and direction at various points in the flow field. |
| Steady | Flow parameters remain same as time passes |
| Non steady | Flow parameters change as time changes. |
| Steady uniform | Flow parameters same at every point in the flow and do not change as time passes |
| Steady non uniform | Flow parameters are different across the flow field but do not change with time |
| Non steady uniform | Flow parameters are the same access the flow but change with time but position wise is same |
| Non steady non uniform | Flow parameters variate due to position and due to time e.g. turbulent flow |
| Laminar flow | All particles proceed along smooth parallel lines without deviation. Velocity is in the direction of the flow. |
| Turbulent flow | Particles move in an irregular manner. Fluctuating velocity is superimposed on the mean velocity |
| Transitional flow | Variates between laminar and turbulent flows |
| Compressibility is due to what parameter? | It is due to variation of density in flow. |
| What us mach number? | Ratio of speed of medium to speed of sound |
| Streamline | Line whuch is everywhere tangent to the local velocity vector. Lines of constant stream function. |
| State the continuity equation | PUA=pua where P is density |
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bolygos
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