Introduction to Fluid Mechanics Chapter 3 Fluid Statics
Main Topics The Basic Equations of Fluid Statics Pressure Variation in a Static Fluid Hydrostatic Force on Submerged Surfaces Buoyancy
The Basic Equations of Fluid Statics Body Force
The Basic Equations of Fluid Statics Surface Force
The Basic Equations of Fluid Statics Surface Force
The Basic Equations of Fluid Statics Surface Force
The Basic Equations of Fluid Statics Total Force
The Basic Equations of Fluid Statics Newton’s Second Law
The Basic Equations of Fluid Statics Pressure-Height Relation
Pressure Variation in a Static Fluid Incompressible Fluid: Manometers
Pressure Variation in a Static Fluid Compressible Fluid: Ideal Gas Need additional information, e.g., T(z) for atmosphere
Hydrostatic Force on Submerged Surfaces Plane Submerged Surface
Hydrostatic Force on Submerged Surfaces Plane Submerged Surface We can find FR, and y´ and x´, by integrating, or …
Hydrostatic Force on Submerged Surfaces Plane Submerged Surface Algebraic Equations – Total Pressure Force
Hydrostatic Force on Submerged Surfaces Plane Submerged Surface Algebraic Equations – Net Pressure Force
Hydrostatic Force on Submerged Surfaces Curved Submerged Surface
Hydrostatic Force on Submerged Surfaces Curved Submerged Surface Horizontal Force = Equivalent Vertical Plane Force Vertical Force = Weight of Fluid Directly Above (+ Free Surface Pressure Force)
Buoyancy
For example, for a hot air balloon (Example Problem 3.8): Buoyancy For example, for a hot air balloon (Example Problem 3.8):