Fluid Mechanics


Introduction to Fluid Mechanics



.Fluid Mechanics is concerned with the behavior of fluids at rest and in motion

.Distinction between solids and fluids:
-According to our experience: A solid is “hard” and not easily deformed. A fluid is “soft” and deforms easily.
-Fluid is a substance that alters its shape in response to any force however small, that tends to flow or to conform to the outline of its container, and that inclu ....etc

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Q.1 (a) Attempt any SIX of the following. 12 Marks
a) Define Specific gravity and Specific weight. State its SI unit.
b) Define the terms “Center of pressure” and “Total pressure” on immersed body.
c) Define “laminar flow” and “turbulent flow”.
d) What are the major and minor losses in pipe.
e) Define the term impact of jet.
f) State different types of draft tubes for reaction turbines
g) List the various losses in Centrifugal pump.
h) Define separation in Reciprocating pump.
Q.1 (b) Attempt any Two o ....etc

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basic laws in Fluid Mechanics


The first term is the unsteady term, which would go to zero in cases where the flow is steady (does not change with time) or when the flow is incompressible (density of fluid is constant). The second term refers to the sum of the mass flow rates leaving the control volume through the surface ‘j’. The third term is the sum of the mass flow rates entering the control volume through ‘k’. Volumetric flow rate is given by the produc ....etc

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Summary
This short course aims to generate an awareness of the range of contemporary flow measurement
devices and methods available for application to both industrial and research flow problems in
Mechanical Engineering. Well-established mass and volume flow rate measuring devices are
reviewed, and the strengths and weaknesses of various meters and classes of meter are discussed.
Modern non-invasive methods - magnetic and ultrasonic - are also discussed.
Velocimetry (or anemometry) methods are then discussed, with a distinction dr ....etc

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