assign4 - Exercise #4 As a liquid moves through a...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Exercise #4 As a liquid moves through a horizontal pipe, the pressure drops due to friction between the liquid and the walls of the pipe. In order to calculate the actual pressure drop, it is necessary to somehow determine the friction factor ( f ). One possibility is to use a Moody chart (see the chart supplied). The inputs are R (the Reynolds number for the flow) and the relative roughness of the pipe ( /D, where is the roughness of the pipe walls and D is the diameter of the pipe). If there is no line on the chart for the particular /D of interest, interpolation is required (one must imagine the required line). Otherwise use of Moody charts is straightforward. The value of R is entered at the bottom of the chart and the value of f is read from the left hand scale. Moody charts are based on the Colebrook formula for f . They were once the primary source of friction factor information, but today, with computers and calculators at our disposal, it is just as easy (as much more accurate) to use the Colebrook formula directly. The Colebrook formula is given below. If , D, and R are all known, it is in principle possible to solve for...
View Full Document

This note was uploaded on 02/28/2011 for the course MATH 101 taught by Professor Duke during the Spring '11 term at University of Ottawa.

Page1 / 2

assign4 - Exercise #4 As a liquid moves through a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online