Introduction to Fluid Mechanics School of Civil Engineering‚ University of Leeds. CIVE1400 FLUID MECHANICS Dr Andrew Sleigh May 2001 Table of Contents 0. 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 CONTENTS OF THE MODULE Objectives: Consists of: Specific Elements: Books: Other Teaching Resources. Civil Engineering Fluid Mechanics System of units The SI System of units Example: Units 3 3 3 4 4 5 6 7 7 9 1. 1.1 1.2 1.3 1.4 FLUIDS MECHANICS AND FLUID PROPERTIES Objectives of this section Fluids Causes
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This paper is to identify possible sources of intergenerational friction‚ and to describe how this differences could be managed in occupational setting. Today is the time when multiple generations are working side by side. Each generation has some distinctly different expectations and perceptions about what their working environment will provide and how they should behave as employees. Therefore‚ many organizations today are challenged by intergenerational issues they have never experience before
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Fluid Report 2 In the derivation of Bernoulli’s equation‚ the assumption of the inviscid and incompressible flow is used. However in the real case‚ the viscosity cannot be neglect and the density of the flow is not always constant. Thus Bernoulli’s equation is not always correct. For the lab‚ it is reasonable to assume the flow is inviscid and incompressible. Firstly‚ the pitot was placed at the center of the flow. The skin friction (effect of viscosity) is inversely proportional to distance
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negligible loses‚ 3 standard flanged 90 smooth elbows (KL = 0.3 each)‚ and a sharp-edged exit (KL = 1.0). We choose points 1 and 2 at the free surfaces of the river and the tank‚ respectively. We note that the fluid at both points is open to the atmosphere (and thus P1 = P2 = Patm)‚ and the fluid velocity is 6 ft/s at point 1 and zero at point 2 (V1 = 6 ft/s and V2 =0). We take the free surface of the river as the reference level (z1 = 0). Then the energy equation for a control volume between these two
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Experimental Errors and Uncertainty No physical quantity can be measured with perfect certainty; there are always errors in any measurement. This means that if we measure some quantity and‚ then‚ repeat the measurement‚ we will almost certainly measure a different value the second time. How‚ then‚ can we know the “true” value of a physical quantity? The short answer is that we can’t. However‚ as we take greater care in our measurements and apply ever more refined experimental methods‚ we can reduce
Free Measurement
Part One: The friction model is the idea that there are various sources that work together to keep policies in place so that the status quo prevails for extended periods of time. There are many different players within the friction model that try to help protect the status quo‚ but other ideas that try to go against the model and change it. The friction model has a head start as it is much easier to protect the status quo than to change it. A major problem policy changer’s face is lack of attention
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City University London Fluid Flow in a Duct of Varying Cross-Section Report: Khurshidanjum Pathan‚ Group A1a Abstract: The experiment is carried out to demonstrate the relation between pressure and fluid velocity in a duct of varying cross-section by using Bernoulli’s equation and continuity equation.(1) Bernoulli’s equation relates the pressure to the velocity for a fluid of constant density flowing in a Venturi tube. Static head‚ normalised head and percentage of errors were calculated using
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PRAXIS Semester 1 Fluid Mechanics Lab Report Contents Objective 3 Theory 3 Experimental Method 4 Equipment needed for this experiment 4 Procedure 4 Results 5 Discussion of Results 6 Sources of errors 8 Conclusions 8 References 8 Objective The objective of performing this experiment is to measure the hydrostatic force on a partially submerged vertical surface and to compare the force found in the experiment to the theoretical equivalents. Theory A submerged body will
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Friction Friction – It is an opposing force that acts between surfaces in contact moving with respect to each other. It always opposes relative motion between two surfaces. Cause of friction - Friction is cause by the irregularities on the two surfaces in contact. We are able to walk because of the force of friction Nature of surfaces – Smooth surfaces: less friction‚ Rough surfaces: greater friction How hard an object is pressed – Greater pressing force: Greater friction Mass of object
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CHAPTER 1: FLUID PROPERTIES LEARNING OUTCOMES At the end of this topic‚ you should be able to: Define Fluid State differences between solid and fluid Calculate common fluid properties: i. Mass density ii. Specific weight iii. Relative density iv. Dynamic viscosity v. Kinematic viscosity INTRODUCTION Fluid Mechanics Gas Liquids Statics i F 0 F 0 i Laminar/ Turbulent Dynamics ‚ Flows Compressible/ Incompressible Air‚ He‚ Ar‚ N2‚ etc. Water‚ Oils‚ Alcohols‚
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