12.07.2015 Views

penggunaan persamaan bernouli

penggunaan persamaan bernouli

penggunaan persamaan bernouli

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Bahagian-bahagian tiub pitotPemasangan tiub pitot mudahTiub PitotDari rajah , jika halaju aliran di A ialah v, zarah yang bergerak dari Ake bukaan tiub B akan berkeadaan diam maka v 0 pada B ialah sifarMenggunakan Teorem Bernoulli :22p v p vA A B B+ = +——————(1)ω 2gω 2gTapipd = Adan peningkatan tekanan di B akan meningkatkan parasωcecair dalam tiub impak, h di atas permukaanair maka h + d = .ωMaka per. (1) menjadi2vA=2gpB− pωA= horv = Halaju tiori v = ( 2gh), Halaju sebenar v C ( 2gh)2ghp B= dimana C pekali tiub pitot.ContohA Pitot Tube is used to measure air velocity in a pipe attached to a mercury manometer.Head difference of that manometer is 6 mm water. The weight density of air is 1.25kg/m 3 . Calculate the air velocity if coefficient of the pitot tube, C = 0.94.( 9.12 m/s)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!