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Get Full Access to Fundamentals Of Fluid Mechanics - 8 Edition - Chapter 6.9.3 - Problem 6.92
Get Full Access to Fundamentals Of Fluid Mechanics - 8 Edition - Chapter 6.9.3 - Problem 6.92

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# Solved: We will see in Chapter 8 that the pressure drop in fully developedpipe flow is

ISBN: 9781119080701 456

## Solution for problem 6.92 Chapter 6.9.3

Fundamentals of Fluid Mechanics | 8th Edition

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Problem 6.92

We will see in Chapter 8 that the pressure drop in fully developedpipe flow is sometimes computed with the aid of a frictionfactor, defined byf = p12V2Dwhere V is the average velocity, D is the pipe diameter, and is thelength of pipe over which p occurs. For laminar fully developedflow, f can be evaluated fromf = CRewhere C is a constant and Re is the Reynolds number, given byRe = VD/. Find the constant C for flow in a circular tube.

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Water & Minerals o Minerals account for 6% of our body composition A. Intro  Water o Most abundant & critical body substance  Minerals o Inorganic elements o An adult male is approximately 62% water, 17% protein, 15% fat, and 6% minerals and glycogen B. Functions of water  Solvent  Body temperature control  Lubrication/ protection  Acid- base balance  Transport o Nutrient delivery  Blood o Waste removal  Blood/urine C. Body Water Compartments  Intracellular fluid  Cells – 67%  Extracellular fluid o Intravascular fluid  Bloodstream- 25% o Interstitial fluid  Between cells 8% D. Water Sources  Beverages o 75-80% of total intake o Drinking water o Other beverages  Food o 20-25% of total intake  Metabolic water o 250-350 ml/day E. Water Output  Urine o Major route for excretion; 1-2 L/day  Sweat  Insensible losses o Skin o Lungs  GI tract o Lowest amount o 100-200 ml/day F. Water Balance  Electrolytes o Sodium, potassium, chloride o Osmotic pressure  Electrolytes attract water  Regulation off Water Intake o Thirst mechanism (sensation)  Stimuli  Increase in plasma osmolarity

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