FLUIDS

Oct 05, 2012

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PRESENTATION OUTLINE. Basic Definitions Of Fluids Basic Equations Of Fluids Constitutive equations of Fluids Basic Assumptions Of Fluids Derivation of Navier-Stokes-Duhem Equation Applications Example problem Homework Problem References. BASIC DEFINITIONS OF FLUIDS. Stress

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FLUIDS

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Fluids

. Fluids. 10.1 States of Matter. . 10.1 States of Matter. Solid

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Fluids

Fluids. A note on usage:. The clicker slides in this booklet are meant to be used as stimuli to encourage class discussion. They are intended for use in a class that attempts to help students develop a coherent and sophisticated understanding of scientific thinking.

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Fluids

Fluids. Characteristics. Characteristic Property - A characteristic property is a physical or chemical property that is unique to a particular substance A fluid is anything that flows To move or run smoothly with unbroken continuity, as in the manner characteristic of a fluid.

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fluids

fluids. Fluids. A fluid is a substance that has: no definite form Is able to flow in all directions All liquids and gases are fluids The body is full of fluids- gas and liquid. Fluids. Powders such as sugar, flour or sand are not fluids even though they have no form and flow

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Fluids

Fluids. pH conductivity production mechanism enzymes hormones important signals isolation tools. Blood. pH: 7.35 – 7.45 Constituents: RBC – 45% WBC – 0.7% Platelets Plasma – 54.3 % 92% Water 8% Blood plasma proteins Purification: centrifugation. Human Blood. Plasma Analytes :

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Fluids

Fluids . Chapter 10. 10.1 Phases of matter . The three common phases of matter are solid, liquid, and gas. A solid has a definite shape and size. A liquid has a fixed volume but can be any shape. A gas can be any shape and also can be easily compressed.

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Fluids

Fluids. Why do things feel lighter when they are under water?. Buoyant Force. Archimedes’ Principle. Buoyant force = weight of fluid displaced. Archimedes Example. Gas bladder (swim bladder) in fish To attain neutral buoyancy. Pressure in Fluids.

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Fluids

Fluids. Particles are free to move past each other Gases and liquids. Archimedes. Eureka! . Why do things feel lighter when they are under water?. Buoyant Force. Fluids exert an upward force on submerged objects Objects weigh less. Demo. Archimedes’ Principle.

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Fluids

Fluids. Archimedes’ Principle Pascal’s Law Bernoulli’s Principle. Fluids and Buoyant Force. Fluids – Matter that flows (liquid and gas). Mass density – Mass per unit volume of a substance. It is often represented by the Greek letter ρ (rho). ρ = m V

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Fluids

Fluids. Density. ρ (rho), mass, and volume Density and Specific Gravity. The density of Iron is greater than that of water…so why do (most) boats float? See Buoyancy…. Pressure. Pressure, Force, and Area ALL DIRECTIONS IN FLUIDS P= ρgh…Why? . Atmospheric Pressure.

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FLUIDS

FLUIDS. Archimedes’ Principle Pascal’s Principle Bernoulli’s Principle. What is a fluid?. A substance that flows Takes the form of the container it’s in Can be gas/liquid with/without solid particles in suspension. Archimedes’ Principle. Buoyant force acting on an object =

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FLUIDS

FLUIDS. Aims. Understanding of human water and sodium homeostasis Develop fluid management skills. Learning Objectives / Plan. Why this is important? Body fluid compartments Water and sodium homeostasis Normally In disease states Intravenous fluids Cases / scenarios. Intravenous Fluids.

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Fluids

Fluids. Buoyant Force. The pressure force on the sides of the volume balances the weight of fluid in the volume. The force remains even without the original fluid. This is the buoyant force. Equals the fluid weight Directed upward Acts on the volume. F b = mg. Sinking and Rising.

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Fluids

Fluids. AP Physics B. Fluids. A fluid is anything that can flow Liquids Gases. Density review. r = m / V r : density (kg/m 3 ) m: mass (kg) V: volume (m 3 ) r is the Greek letter “rho”; it is NOT a P! Capital P is pressure. Lowercase p is momentum (you’ll learn later).

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Fluids

Fluids. Static fluids Bernoulli’s equation fluids. Are you here?. Yes No. Did you attempt any questions on the Torque handout?. Yes No Abstain. What is the r?. 2m 3m 5m. What’s the angle?. 30 degrees 60 90 120 150 180 zero. Where is pressure biggest?. Under the fat cylinder

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Fluids

States of Matter. Fluids. Activty. Will it float? Rock Potato Paper clip Pen Pencil Coin Candle Eraser. Objectives. Describe the buoyant force and explain how it keeps objects afloat. Define Archimedes’ principle. Explain the role of density in an object’s ability to float.

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Fluids

Fluids. Honors Physics. Liquids. In a liquid, molecules flow freely from position to position by sliding over each other Have definite volume Do not have definite shape – conform to their container. Density. Mass Density ρ = m/V Units – kg/m 3 Common densities Air – 1.29 kg/m 3

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Fluids

Fluids. AP Physics Chapter 10. Fluids. 10.1 States of Matter. 10.1 States of Matter. Solid – fixed shape, fixed size Liquid – shape of container, fixed size Gas – shape of container, volume of container Fluids – have the ability to flow (liquids and gases). 10.1. Fluids.

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Fluids

Fluids. BELLWORK : What does it mean to be fluid?. BELLWORK - Pressure. What is pressure?. BELLWORK - Pressure. What is pressure? Feeling forced to do something A force needed to squash an object Force exerted per unit area of a surface. TN Standards.

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Fluids

Fluids. Your Comments. Everything is going great. It seems like there is homework due and we haven’t gone over any problems like it yet, but you do a good job of going over problems like that and help us with the homework. Just am curious how im doing in the class with regard to test grades.

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Fluids

Fluids. Chapter 11. Why Does Something Float?. 11.1 Mass Density. In this chapter, we discuss the behavior of fluids. Fluids by definition, include both gases and liquids Mass density is the mass per unit volume of a liquid or gas

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Fluids

Fluids. Definition. Has no fixed shape Ability to flow. Density ( ρ). Mass per unit volume ρ = m/V SI unit – kg/m 3 Specific to different materials (pg. 301) What is the mass of a solid iron wrecking ball of radius 18cm?. Specific Gravity.

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