References: [4] Allison‚ J.L.‚ “Marine Waterjet Propulsion”‚ SNAME Annual meeting‚ New York‚ 1993. [5] ITTC‚ “The Specialist Committee on Waterjets”‚ 22th ITTC‚ International Towing Tank Conference‚ 1998. [6] Stanley Wheatley‚ “Development of a High-speed Sealift Waterjet
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Kasey Reynolds 1 Final Exam: Starbucks Case Study External Analysis The general environment of the coffee industry is affected by many different factors. Social forces include factors such as lifestyle and cultural tastes. From their first store in Seattle‚ WA Starbucks learned that customers wanted a place to sit down and have a cup of coffee‚ while other customers wanted to get coffee quickly by utilizing a drive-thru. Both of these options have been added to appeal to a larger customer base
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Osborne Reynolds Demonstration Sayed abbas Mohamed 20104762 03 1. Objective: To reproduce the classical experiments conducted by Professor Osborne Reynolds concerning fluid flow condition. 2. Theory: Reynolds number‚ Re is the internationally recognized criterion denoting fluid flow condition. “ Re = 4Q/ πvd ” Osborn Reynolds determined that values of Re could be assigned to define the transition from laminar to turbulent flow. 3. Apparatus: -Osborne Reynolds apparatus
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velocity of the flow and g is gravity. Flow Rate The flow rate in a pipe can also be calculated using (eq 2) In this case u is used for velocity‚ Q as volume flow rate and A‚ cross sectional area of the pipe. Reynold’s Number In fluids‚ the Reynolds number (Re) is a dimensionless number which gives a measure of the ratio of inertial forces to viscous forces. The Reynold’s Number is also used to classify laminar and turbulent flow values. When working with pipes that have different
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1 LIST OF SYMBOLS Symbol Description Unit T Temperature K ΔP Pressure Drop Pa ρ Density kg/m3 µ Kinematic Viscosity N*s/m2 V Bulk Velocity m/s D Diameter m A Area m2 Flow Rate m3/s Re Reynolds Number - f Friction Factor - L Length m 2 CALCULATIONS For the sample calculations‚ we looked at the first sample point of the flow in Pipe 1‚ the smallest diameter smooth copper tube: The first step in determining
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smooth pipe shows that there are existence of laminar and transitional flows as stated in Graph 2.0 and Graph 2.1. It is proven that the higher velocity along the smooth bore pipe‚ the higher is the head loss of water. As shown in Table 3.0‚ when the Reynolds’ number increases‚ the value of pipe coefficient friction‚ f decreases along the decreasing stead laminar line. On top of that‚ there are energy loss from the water to the surface of the pipe and therefore‚ the temperature increases when velocity
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Sacrifices Summary and Characterization The story Sacrifices by R.J Ellory is about Kathleen Reynolds who works as a cop at the Fairfax County Homocide Division. Kathleen Reynolds has given up both husband‚ kids‚ her family and holidays‚ for her career. Later on in the text we are introduced to a woman named Bitsy whose mother is diagnosed with terminal cancer. Bitsy can’t bear seeing her mother in agony‚ and therefore she overdoses the morphine that is used to relieve her mother’s pain‚ with the
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1. Painters and their craft: Thomas Gainsborough and Joshua Reynolds–their place in the history of English art (genre peculiarities‚ style‚ pictures) Thomas Gainsborough was born in Sudbury‚ Suffolk‚ in 1727. His father was a cloth merchant. Thomas soon evinced a marked inclination for drawing and in 1740 his father John Gainsborough sent him to London to study art. He stayed in London for eight years‚ working under the rococo portrait-engraver Gravelot. He also became familiar with the Flamish
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a function of Reynolds number . Theory : The friction resistance to the flow of fluid through a pipe results in a loss of pressure energy for a given fluid flowing a long a given pipe‚ experiments show that for laminar flow : Hl α V And for turbulent flow : Hl α Vn Where : Hl :is the loss of pressure head . V : the mean velocity of flow . n : an index that lies between ( 1.7 – 2.0 ) depending on Reynolds number ( Re ) and on the roughness of the pipe wall. The Reynolds number ( Re )
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experiment‚ the drag coefficient of a cylinder was calculated from data obtained by performing tests in an air bench. Two methods of analysis were used to calculate drag measurements on the cylinder: direct measurement of the drag force and applying the Reynolds Transport Theorem to control volume enclosed by the test section. In the first method‚ the drag coefficient can be determined by directly measuring the drag force exerted on the cylinder. The drag force by weight measurement is given by the weight
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