Key Difference: Dynamic pressure is the continuous physical force exerted on an object by something such as air on fluid.Static pressure is the physical force exerted on an object that is not in motion. 2 Governing Equations of Fluid Dynamics 19 Fig. τ = μ dc / dy = μ γ (1) where. Dynamic and static pressure are used in fluid dynamics to … Chapter 3 Pressure and Fluid Statics PROPRIETARY MATERIAL. The focus of the lecture is on fluid dynamics and statics. Mechanics, on the other hand involves study of kinematics and statics as well which are the branch of fluid flow without involving force analysis and static fluid (bulk usually) system respectively.

This includes liquids, but gases are fluids too. © 2014 by McGraw-Hill Education.This is proprietary material solely for authorized instructor use. 1. The shearing stress between the layers of a non turbulent fluid moving in straight parallel lines can be defined for a Newtonian fluid as. Fluid Dynamics is the study of fluids in motion. You probably think of a fluid as a liquid, but a fluid is simply anything that can flow. Bernoulli’s equation relates a moving fluid’s pressure, density, speed, and height from Point 1 […] 2.2. Dynamic pressure is the pressure of a fluid that results from its motion. Note that fluid flow can get very complex when […] The main equation required for this is Newton's second law for nonaccelerating bodies, i.e. . Liquid pressure. At this point and time, the density of the fluid element is ρ 1 =ρ(x 1,y 1,z 1,t 1) At a later time, t There are two branches of fluid mechanics: Fluid Statics or hydrostatics is the study of fluids at rest.
Shear stress can be expressed. All you need to know is the fluid’s speed and height at those two points. τ = shearing stress in fluid (N/m 2) μ = dynamic viscosity of fluid (N s/m 2) Different properties are discussed, such as density and pressure. Compare between fluid statics and fluid dynamics. The Archimedes’ Principle is introduced and demonstrated through a number of problems.
Total (or ram) pressure is the pressure a fluid exerts as it is brought to a stop. Because Bernoulli’s equation relates pressure, fluid speed, and height, you can use this important physics equation to find the difference in fluid pressure between two points.

In physics, fluid flow has all kinds of aspects — steady or unsteady, compressible or incompressible, viscous or nonviscous, and rotational or irrotational, to name a few. Some of these characteristics reflect properties of the liquid itself, and others focus on how the fluid is moving. - Fluid Dynamics and Statics and Bernoulli's Equation Overview. 6-10-98 What is a fluid? 2.2 Fluid element moving in the flow field—illustration for the substantial derivative At time t 1, the fluid element is located at point 1 in Fig. Fluid dynamics is the study of the movement of fluids, including their interactions as two fluids come into contact with each other.

Fluid statics. It is the difference between the total pressure and static pressure. Applications of fluid statics: I. Barometric equation: It is a mathematical equation used to calculate pressure at any height above ground. (Relation between pressure and height) Derivation of the equation: Consider the vertical column of fluid shown in the figure and: S: is the C.S.A Total pressure is what acts on you as you face into the wind and the air collides with your body.

Fluid statics – problems and solutions. The final topic of the lecture is Bernoulli’s Equation. Dynamics is a subset of mechanics and deals with the motion of the fluid system and the involved forces therein.


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