Bhagwan Mahavir College of

Engineering and Technology

PRESENTATION ON

Prepared by : Ankit Gangani 140060106055

OUTLINE

Introduction

Types of flow

Applications of Fluid Mechanics

Introduction to Fluid Mechanics

Fluid Mechanics - A section of applied mechanics,concerned with the static and dynamics of liquidand gases.

Deals with the study of the motion of generalbehavior of a fluid governed by the law ofconversation of mass, laws of mechanics and ofthermodynamics.

Introduction

Fluid mechanics has its wide range of application and science everywhere there’s flow of fluid.

Pumps, Storage tanks , water & waste water treatment plant, sewer network, water supply network, dams, car-bikes-plane-boats, biogas plants, tornado-tsunami mitigation equipments, various treatments for human or any living body, various outer space phenomenon etc. are all due to various science of fluid flow.

Reynold’s Experiment

To design any applied phenomenon, fundamental properties like density ,pressure ,velocity etc. are taken as basic unit parameters for deciding type of flow.

Reynold’s Experiment is one such application for describing type of flow in fluid kinematics which is governed by following equation.

Re < 2000 for laminar flow

2000 < Re < 4000 for transition flow

Re > 4000 for turbulent flow

Indian Standards for drinking water

Applications of Fluid Mechanics Though applications of

Bernoulli's principle are amongthe most dramatic examples offluid mechanics in operation,the everyday world is filled withinstances of other ideas at work.Pascal's principle, for instance,can be seen in the operation ofany number of machines thatrepresent variations on the ideaof a hydraulic press. Amongthese is the hydraulic jack usedto raise a car off the floor of anauto mechanic's shop.

Bernoulli's Principle in Action

As fluid moves from a wider pipeto a narrower one, the volume ofthe fluid that moves a givendistance in a given time perioddoes not change. But since thewidth of the narrower pipe issmaller, the fluid must move faster(that is, with greater dynamicpressure) in order to move thesame amount of fluid the samedistance in the same amount oftime. Observe the behavior of ariver: in a wide, unconstrictedregion, it flows slowly, but if itsflow is narrowed by canyon walls,it speeds up dramatically.

Applications

Applications of Fluid Mechanics

Refrigeration system

Applications

Among the most famous applications of Bernoulli's principle is its use in aerodynamics, and this is discussed in the context of aerodynamics itself elsewhere in this book. Likewise, a number of other applications of Bernoulli's principle are examined in an essay devoted to that topic.

A Wind Tunnel The above scenario of wind flowing through a room

describes a rudimentary wind tunnel. A wind tunnel is a chamber built for the purpose of examining the characteristics of airflow in contact with solid objects, such as aircraft and automobiles.

Fluid mechanics while travelling

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Hair Dryer

Many girls we know blow dry their hair on a regular basis. Like them, we enjoy this commodity of everyday life. if we center the blow dryer above our head and point down, we can feel the shear force of the air blowing over our face and hair.

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A pump is a device made formoving fluid, and it does soby utilizing a pressuredifference, causing the fluidto move from an area ofhigher pressure to one oflower pressure. Its operationis based on aspects both ofPascal's and Bernoulli'sprinciples—though, ofcourse, humans were usingpumps thousands of yearsbefore either man was born.

Fluid Flows in Transportation Sector

Environmental Fluid Flows

Weather & Fluid Flows

Biological Fluid Flows

Surface Tension :

“ Surface tension is the elastic tendency of liquids that makes them acquire the least surface area possible. Surface tension causes insects usually denser than water to float and stride on the water surface ”

Knowledge of Viscous Fluid Flow for Design of Artificial Heart Valves