Lab2_Data_Reduction_Sheet_(smooth)

# Lab2_Data_Reduction_Sheet_(smooth) - Appendix C Spreadsheet...

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Appendix C: Spreadsheet for data acquisition, data reduction and uncertainty analysis for Table of Contents Color code: 1. Experimental Summary Sections 2. Data reduction equations Comments 3. Data Acquisition and Reduction Enter student data 3.1 Input variables Constants 3.2 Measured variables Calculated or output values 4. Uncertainty Analysis 4.1 Bias Limits 4.2 Precision Limits 4.3 Total Uncertainty 1. Experiment summary Statement of Purpose: To measure velocity profile and friction factor in rough pipe and determine the uncertainties and compare results with benchmark data. Facility: Air-flow unit (WTA) Test Design: Air flows through a pipe system References: Lab2 Handout: http://css.engineering.uiowa- .edu/~fluids/Lab/EFDLab2.PDF 2. Data Reduction Equations 3. Data acquisition and reduction for multiple test UA approach 3.1 Input variables Quantity Symbol Value Units Gravity g 9.8031 m/s^2 Number of test Μ 10 ----- Coverage factor for standard deviation K 2 ----- 3.2 Measured variables The following example illustrates the procedure for calculating Q using velocity Target Conditions Date Time For calculating the flow rate Q (Cell no. G66) first obtain the velocity profile Target Reynolds # Temperature(deg C) Fluid Property with respect to radial distance. Cells D84-D98 calculates the velocity profile. Re= 100,000 Room Pipe The following example illustrates the procedure for calculating Q using velocity Target Headdrop (ft water) Initial integration method. Note: The x axis on the following plot is cell A85 - A91. The

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