This presentation discusses fluid flow phenomena including potential flow, boundary layers, Newtonian and non-Newtonian fluids, Reynolds stresses, eddy viscosity, laminar and turbulent flow in boundary layers, boundary layer formation in straight tubes, and transition length. Potential flow is incompressible fluid flow with no shear or eddies. The boundary layer is the layer of fluid immediately adjacent to a solid boundary where shear stresses are confined. Newtonian fluids have shear stress proportional to shear rate, while non-Newtonian fluids do not have this linear relationship. Turbulent flow produces higher Reynolds stresses than laminar flow. Boundary layers begin forming at the entrance to a tube and thicken until fully developing across the tube diameter. Transition length is
Fluid flow-Mention fluid properties such as viscosity, compressibility and surface tension of fluids.
Hydrostatics (Fluidststics) influencing fluid flow.
Fluid dynamics‐ Bernoulli’s theorem, flow of fluids in pipes, laminar and turbulent flow.
A fluid is a substance that continually deforms (flows) under an applied shear stress.
Fluids are a subset of the phases of matter and include liquids, gases.
Fluid flow may be defined as the flow of substances that do not permanently resist distortion
The subject of fluid flow can be divided into fluid static's and fluid dynamics
FLUID STATICS
Consider a column of liquid with two openings Which are provided at the wall of the vessel at different height
The rate of flow through these openings are different due to the pressure exerted at the different heights are different
Consider a stationary column the pressure P is acting on the surface of the fluid, column is maintained at constant pressure by applying pressure
The force acting below and above the point 1 are evaluated
Substituting the force with pressure x area of cross section in the above equation
Fluid flow-Mention fluid properties such as viscosity, compressibility and surface tension of fluids.
Hydrostatics (Fluidststics) influencing fluid flow.
Fluid dynamics‐ Bernoulli’s theorem, flow of fluids in pipes, laminar and turbulent flow.
A fluid is a substance that continually deforms (flows) under an applied shear stress.
Fluids are a subset of the phases of matter and include liquids, gases.
Fluid flow may be defined as the flow of substances that do not permanently resist distortion
The subject of fluid flow can be divided into fluid static's and fluid dynamics
FLUID STATICS
Consider a column of liquid with two openings Which are provided at the wall of the vessel at different height
The rate of flow through these openings are different due to the pressure exerted at the different heights are different
Consider a stationary column the pressure P is acting on the surface of the fluid, column is maintained at constant pressure by applying pressure
The force acting below and above the point 1 are evaluated
Substituting the force with pressure x area of cross section in the above equation
This presentation contains the Fluid flow chapter of Pharmaceutical engineering. This chapter include the definition of flow of fluid, Reynolds number, Bernollis therom, Manometers, Fluid flow measuring equipment's and applications.
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Distillation
Subject: 0.2 Introduction to distillation.
Reynolds number and geometry concept, Momentum integral equations, Boundary layer equations, Flow over a flat plate, Flow over cylinder, Pipe flow, fully developed laminar pipe flow, turbulent pipe flow, Losses in pipe flow
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Distillation
Subject: 1.2 Flash distillation.
This presentation contains the Fluid flow chapter of Pharmaceutical engineering. This chapter include the definition of flow of fluid, Reynolds number, Bernollis therom, Manometers, Fluid flow measuring equipment's and applications.
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Distillation
Subject: 0.2 Introduction to distillation.
Reynolds number and geometry concept, Momentum integral equations, Boundary layer equations, Flow over a flat plate, Flow over cylinder, Pipe flow, fully developed laminar pipe flow, turbulent pipe flow, Losses in pipe flow
Slides for the eLearning course Separation and purification processes in biorefineries (https://open-learn.xamk.fi) in IMPRESS project (https://www.spire2030.eu/impress).
Section: Distillation
Subject: 1.2 Flash distillation.
B.TECH. DEGREE COURSE
SCHEME AND SYLLABUS
(2002-03 admission onwards)
MAHATMA GANDHI UNIVERSITY,mg university, KTU
KOTTAYAM
KERALA
Module 1
Introduction - Proprties of fluids - pressure, force, density, specific weight, compressibility, capillarity, surface tension, dynamic and kinematic viscosity-Pascal’s law-Newtonian and non-Newtonian fluids-fluid statics-measurement of pressure-variation of pressure-manometry-hydrostatic pressure on plane and curved surfaces-centre of pressure-buoyancy-floation-stability of submerged and floating bodies-metacentric height-period of oscillation.
Module 2
Kinematics of fluid motion-Eulerian and Lagrangian approach-classification and representation of fluid flow- path line, stream line and streak line. Basic hydrodynamics-equation for acceleration-continuity equation-rotational and irrotational flow-velocity potential and stream function-circulation and vorticity-vortex flow-energy variation across stream lines-basic field flow such as uniform flow, spiral flow, source, sink, doublet, vortex pair, flow past a cylinder with a circulation, Magnus effect-Joukowski theorem-coefficient of lift.
Module 3
Euler’s momentum equation-Bernoulli’s equation and its limitations-momentum and energy correction factors-pressure variation across uniform conduit and uniform bend-pressure distribution in irrotational flow and in curved boundaries-flow through orifices and mouthpieces, notches and weirs-time of emptying a tank-application of Bernoulli’s theorem-orifice meter, ventury meter, pitot tube, rotameter.
Module 4
Navier-Stoke’s equation-body force-Hagen-Poiseullie equation-boundary layer flow theory-velocity variation- methods of controlling-applications-diffuser-boundary layer separation –wakes, drag force, coefficient of drag, skin friction, pressure, profile and total drag-stream lined body, bluff body-drag force on a rectangular plate-drag coefficient for flow around a cylinder-lift and drag force on an aerofoil-applications of aerofoil- characteristics-work done-aerofoil flow recorder-polar diagram-simple problems.
Module 5
Flow of a real fluid-effect of viscosity on fluid flow-laminar and turbulent flow-boundary layer thickness-displacement, momentum and energy thickness-flow through pipes-laminar and turbulent flow in pipes-critical Reynolds number-Darcy-Weisback equation-hydraulic radius-Moody;s chart-pipes in series and parallel-siphon losses in pipes-power transmission through pipes-water hammer-equivalent pipe-open channel flow-Chezy’s equation-most economical cross section-hydraulic jump.
FLUID IN MOTION
HYDRODYNAMICS
Hydrodynamics is the branch of physics which deals with the study of properties of fluids in motion.
Viscosity of the fluid
Fluid Flow, Heat and Mass Transfer at Bodies of Different Shapes: Numerical Solutions presents the current theoretical developments of boundary layer theory, a branch of transport phenomena. Also, the book addresses the theoretical developments in the area and presents a number of physical problems that have been solved by analytical or numerical method. It is focused particularly on fluid flow problems governed by nonlinear differential equations. The book is intended for researchers in applied mathematics, physics, mechanics and engineering.
Boundary layer concept
Characteristics of boundary layer along a thin flat plate,
Von Karman momentum integral equation,
Laminar and Turbulent Boundary layers
Separation of Boundary Layer,
Control of Boundary Layer,
flow around submerged objects-
Drag and Lift- Expression
Magnus effect.
Cafe Coffee Day (CCD) average sale per day were up 11.58% to ₹17,140 during the quarter as against ₹15,361 in January-March last fiscal year.
During the quarter under review, its same-store sales growth was up 4.9%. However, year-on-year, its cafe outlet count was down by 13.46% as the number of operational stores came down to 495 in Q4.
It was operating 501 stores in October-December of FY22 and 572 in the corresponding January-March quarter of FY21. Vending machine count was down to 45,217 during the quarter under review from 45,959 in the year-ago period.
For the fiscal ended March 2022, Coffee Day Global narrowed net loss to ₹113.44 crore. It had reported a net loss of ₹306.54 crore in the previous fiscal. Its revenue from operations was ₹496.26 crore in FY22 - 23.81% higher than in the year-ago period.
Fluid Mechanics-Shear stress ,Shear stress distribution,Velocity profile,Flow Of Viscous Fluid Through The circular pipe ,Velocity profile for turbulent flow Boundary layer buildup in pipe,Velocity Distributions
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2. FLUID FLOW PHENOMENA
Fluid:In physics a fluid is a substance that continuously deforms under an applied
shear force. A fluid is a substance that doesn’t permanently resist distortion. An attempt
to change the shape of mass of a fluid results in sliding of the layer of the fluid over one
another.
Fluid Flow:Potential Flow: - The flow of incompressible fluid with no shear is
known as Potential flow
It has some important characteristics1. Neither circulation nor eddies forms within the stream.
Hence the potential flow is known as irrotational flow.
2. Friction cannot develop since there is no existence of
shear stress & hence there is no dissipation of mechanical energy into heat energy.
Boundary layer:The effect of solid boundary on the flow is confined to the layer of the
fluid immediately adjacent to the solid boundary. This layer is called Boundary Layer &
also the shear stress are confirm to this part of the fluid only.
Parts of fluid:(1)Boundary Layer (2)Remaining fluid
3. RHEOLOGICAL PROPERITIES OF FLUIDS
Newtonian & Non-Newtonian fluid:Newtonian fluid – Fluid flow in simple linearity are
called Newtonian fluid. In a Newtonian fluid the
shear stress is proportional to the shear rate ,
and the proportionality constant is called the
viscosity.
du
g c dy
where μ = co-efficient of
viscosity
Exmp- Water , Gasses etc
Non-Newtonian fluid1. The curve starts from origin & concave
downwards represents Pseudoplastic fluid & this
type of fluid is said to be shear rate –thinning.
Exmp – Polymer solutions , starach
suspensions etc.
FIGURE : Shear stress vs shear rate 2. The curve starts from origin & concave
upwards represents Dilatant fluid & this type of
for
fluid is said to be shear rate –thickening.
Newtonian & Non-Newtonian fluid
Exmp – Wet beach sand , starch in water etc
3. The straight line having some intercepts in y – axis represents Bingham plastic . This type of fluid
do not flow at all until a threshold shear stress
attained & then flow linearly at shear stress
0
0
greater than
Exmp – Sludge
4.
Reynolds stresses :- The stress is much larger in turbulent flow than the laminar
flow . Since the shear stress is higher in turbulent flow Turbulent shear stress are
called Reynolds stresses
Eddy viscosity :- By analogy , he relationship between shear stress and velocity
gradient in a turbulent stream is used to define an eddy viscosity EV .
where E v = eddy viscosity
du
t g c Ev
dy
Also we know ,
du
μ = co-efficient of viscosity
g c dy
The above two expression is almost similar .Hence eddy viscosity is analogous to μ .
We know,
And also,
Where
m
N RE
N RE
DV
DV
DV
where ν=kinematic viscosity
DV DV DV
Ev
Ev
m
E
v
=Eddy diffusivity of momentum =
Here kinematic viscosity is analogous to eddy diffusivity.
5. BOUNDARY LAYERS
Here the flow of fluid is parallel
to a thin plate LM . A boundary
is define as the part of a
moving fluid in which a fluid is
influence by a solid boundary .
The velocity of the fluid as
solid-liquid interface is zero.
The velocity increases with
distance from the plate as
shown in figure.
Each of the curve represents the velocity profile for definite value of
x , the distance from the leading edge of the of the plate. The curves
changes slope rapidly near the plate . Line OL represents an
imaginary surface , which separates the fluid stream into two parts ,
one in which fluid velocity is constant and the other where the
velocity varies from zero to a velocity substantially equal to that of
un disturbed fluid.
6. LAMINAR & TURBULANT FLOW IN BOUNDARY LAYER
Flow near the
boundary layer is
laminar flow. Since
velocity is very low as
we move further from
the solid boundary the
velocity is fairly large
and hence the floe
become turbulance.
There are three
layers:1. Viscous
sublayer
2. Buffer layer
3. Turbulent zone
7. BOUNDARY LAYER FORMATION IN STRAIGHT TUBUES
Considering a straight, thin-walled tube with fluid entering it at a
uniform velocity. As shown in the above fig. A boundary layer begins
to form at the entrance to the tube and as the fluid move to the first
part of the channel , the boundary layer thickens. During this stage the
boundary layer occupies only a part of the tube & total stream consists
of a core of fluid moves like a road like manner . But the velocity of
fluid is constant. In the boundary layer , the velocity varies from zero
to constant velocity existing in the core . As we further move down to
the tube , the boundary layer occupies an increasing portion of the
cross-section of the tube.
At this point , the velocity distribution in the tube reaches
its final point & remains unchanged for the remaining part of the fluid .
Such flow with an unchanging velocity distribution is called ‘Fully
Developed Flow' .
8. TRANSITION LENGTH
The length of the entrance region of the
tube necessary for the boundary layer to
reach the centre of the tube & for the fully
developed flow to be established is called
‘TRANSITION LENGTH’.
We can express it by
(Xt / D)=0.05*NRe
Xt = Transition Length
D= Diameter of the tube