This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Homework 1 Due 09/18/08 at 2:30 pm in 3418C Patrick Taylor (My office) Problem 1: Water at 20 C is flowing in a 100mm diameter pipe at an average velocity of 2 m/s. If the diameter of the pipe is suddenly expanded to 150 mm, what is the new velocity in the pipe? What is the flowrate in the pipe? Problem 2: The velocity profile, v ( r ), for turbulent flow in smooth pipes is sometimes estimated by the seventhroot law, originally proposed by Blasius (1911): v ( r ) = V o 1 r R 1 / 7 where V o is the maximum (centerline) velocity and R is the radius of the pipe. Calculate the average velocity and flowrate in the pipe. Problem 3: In the pipe system for a given discharge, the ratio of the head loss in a given length of 1 m pipe to the head loss in the same length of 2 m pipe is (a) 2, (b) 4, (c) 16, (d) 32. Problem 4: Water leaves a reservoir at 0.06 m 3 /s through a 200 mm riveted steel pipeline that pro trudes into the reservoir and then immediately turns a 90 bend with a local (minor) loss...
View
Full
Document
This note was uploaded on 09/11/2008 for the course CE 2460 taught by Professor Moorthy during the Fall '08 term at LSU.
 Fall '08
 MOORTHY

Click to edit the document details