Solve step by step problems
Click on the Flow tab (upper left). Click on Ruler (upper right). A, V1 = A2 V2 Pitpgh, +1/2 pv, = P2+pgh2 + 1/2 p V , 2 Conversions to metric: L/s needs to be m'/s, so + by 1000, and kPa needs to be Pa, so x by 1000. Measurements using the ruler, and Speed and Pressure meters, are very critical. Please do the "best you can" per the figures. 5.a. figure 5.b. figure Dats Speed 1.6 mis 5.a. Measure the pipe's inside diameter with the ruler as is shown, getting 2.0 m. Then r, = m. Pull the Speed meter into the flow, which is water, and v, = m/s. 5.b. Critical setup: pull the right-hand 3 handles down as is shown, with the middle one at 1.0 m diameter. The flow speed v, is 1.6 m/s to the left, measure it just downstream of the ruler, V2 = _ m/s. Using "A = n r2", calculate it from A, V, = A2 V2, V2 = _ m/s Do measured and calculated speeds verify one another? Yes/No. 5.c. Height and pressure measurements, where r, = 1.0 m. Place the ruler as shown. It is measuring "h," in the pipe. Each tic mark is .2 m. Three tic marks up is h, =_I Place the lower tip of the Pressure meter at this height, as is shown. Measure the pressure here in Pa, P= Pa (6 sig figs, convert from kPa). A ." 5.d. Height and pressure measurements, where r, = 0.5 m. Place the ruler as shown to measure "h," in the pipe (each tic mark is .2 m). Three tic marks up is h, = m. Place the lower tip of the Pressure meter at this height, as is shown. Measure the pressure here in Pa, P2 = Pa (6 sig figs, convert from kPa). Bernoulli's Equation is, p, +p gh, + 1/2 p v, = P2 +pg h2 + 1/2 p v2" calculation. Water has p = 1000 kg/m'. We will calculate the left and right sides separately. 5.e. Left side terms (three, then the result of adding them) P pgh, 1/2 pv 2 + + (6 sig figs) 5.f. Right side terms (three, then the result of adding them) P2 pgh2 1/2 pv,2 (6 sig figs) 5.g. Are the two above final results fairly "close"? Yes/No. 5.h. Volume flow rate through narrow portion: Using A, V, = A2 V2, the volume flow rate here is "A, V2" = m'/s. (4 sig figs) Note that 5c - h are very similar to the assigned homework problem 50