Basic Fluid Mechanics- Aviation Physics

Unit-5 (Syllabus)
BASIC FLUID MECHANICS
Buoyancy – Fluid Pressure – Pascal‘s Law –
Bernoulli‘s Principle – Boyle‘s Law – Charles's
Law – General Gas Law – Dalton‘s Law –
Sound – Wave Motion – Speed of Sound –
Mach Number – Frequency of Sound –
Measurement of Sound Intensity – Doppler
Effect – Resonance.

, Buoyancy
• The buoyant force is the upward force
exerted on an object wholly or partly
immersed in a fluid. This upward force is
also called Upthrust.
• Due to the buoyant force, a body
submerged partially or fully in a fluid
appears to lose its weight, i.e. appears to
be lighter.

, Factors of buoyant force
The following factors affect buoyant force:
• The density of the fluid
• The volume of the fluid displaced
• The local acceleration due to gravity

, Buoyant Force