What is the aim of Fluid Mechanics I? To introduce the properties of fluids, elementary
equations of fluid statics, kinematics, dynamics, and
basic applications to pipe flow systems.
What is fluid mechanics concerned The behavior of liquids and gases at rest and in motion.
with?
What are the three branches of Statics, Kinematics, and Dynamics.
mechanics in fluid mechanics?
Define fluid. A fluid is defined as a substance that deforms
continuously when acted on by a shear stress of any
magnitude.
What is the difference between a solid Solids have densely spaced molecules with large
and a fluid? intermolecular forces, while fluids (liquids and gases)
have more spaced molecules and can be easily
deformed.
What is fluid statics? The branch of mechanics that deals with bodies at rest
or forces in equilibrium.
What is fluid kinematics? The branch of mechanics that deals with pure motion,
without reference to the masses or forces involved.
What is fluid dynamics? The branch of mechanics that deals with the motion
and equilibrium of systems under the action of forces.
What is a shear stress? A shear stress is a force per unit area created
whenever a tangential force acts on a surface.
Grade A+ | Updated
, Fluid Mechanics Chapter 1 | Fundamentals, Properties, Equations & Applications
What is the continuum assumption in It assumes that fluid properties vary smoothly enough
fluid mechanics? that differential calculus can be used to analyze the
substance.
What is dimensional homogeneity? It refers to the principle that all terms in a physical
equation must have the same dimensions.
What are the primary quantities in fluid Length (L), time (T), mass (M), and temperature (θ).
mechanics?
What is the ideal gas law? An equation of state for an ideal gas that relates
pressure, volume, temperature, and the number of
moles of gas.
Define viscosity. A measure of a fluid's resistance to flow or deformation.
What is compressibility in fluids? The measure of the change in volume of a fluid in
response to a change in pressure.
What is vapor pressure? The pressure exerted by a vapor in equilibrium with its
liquid or solid form.
What is surface tension? The elastic tendency of a fluid surface that makes it
acquire the least surface area possible.
What is the significance of fluid Fluid mechanics helps engineers design systems
mechanics in engineering? involving fluid flow, such as pipelines, pumps, and
turbines.
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