Problem 1: Air at 20°C and 1 atm pressure flows at 20m/s past the flat plate shown below. A pitot tube, placed 2 mm from the wall, develops a manometer head h=16 mm for a gage fluid with specific gravity SG=0.827. Estimate the downstream position of the pitot tube, assuming laminar boundary layer flow. Hint: use the pitot tube information to find the stream-wise velocity at that height and location. Then use Blasius solution given in Table 11-1 (p566) to find the location x. You may need to do a little interpolation of the data in Table 11-1. X TABLE 11-1 The Blasius Solution - 20 m/s Rex 0.0 0.4 0.8 1.2 9016 2.0 2.4 u/U Boundary layer 0.0 0.13277 0.26471 0.39378 0.62977 0.72899 X 2.8 3.2 3.6 4.0 0.516760 100 4.4 IDER: 4.8 2 mm Laminar Boundary Layer √√Rex 00 h u/U 0.81152 0.87609 0.92333 0.95552 0.97587 0.98779 1.00000

Problem 1: Air at 20°C and 1 atm pressure flows at 20m/s past the flat plate shown below. A pitot tube, placed 2 mm from the wall, develops a manometer head h=16 mm for a gage fluid with specific gravity SG=0.827. Estimate the downstream position of the pitot tube, assuming laminar boundary layer flow. Hint: use the pitot tube information to find the stream-wise velocity at that height and location. Then use Blasius solution given in Table 11-1 (p566) to find the location x. You may need to do a little interpolation of the data in Table 11-1. X TABLE 11-1 The Blasius Solution - 20 m/s Rex 0.0 0.4 0.8 1.2 9016 2.0 2.4 u/U Boundary layer 0.0 0.13277 0.26471 0.39378 0.62977 0.72899 X 2.8 3.2 3.6 4.0 0.516760 100 4.4 IDER: 4.8 2 mm Laminar Boundary Layer √√Rex 00 h u/U 0.81152 0.87609 0.92333 0.95552 0.97587 0.98779 1.00000

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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