mechanics lab report
Apparatus
High Flow & Low Flow Rotameters (Fig-2. High flow on the right)
Water supply valve
Water Tank
Color Dye
Inclined manometers (Fig-3)
Control valve
Tapered inlet
Fig-2. Rotameter Fig-3. Monometer
These pictures were captured during the lab session
Procedure
Part A
This lab was performed by the group members as they closed both low and high flow rotameters (Fig-2) and filled the tank with water. Then, the large rotameter was opened when the water in the tank had reached the internal baffle, so the flow from the tank was reduced by doing so. One member was in charge of adjusting the level of the water so it was always maintained over the baffle’s level during the lab (Fig-1).
The first part of the lab was done by using a high flow rate (0.1 l/s) and a low flow rate (0.021 l/s) and observing the pattern of the sample dye’s movement as it would flow down the stream. To aim this goal, one member was charged to adjust the rotameter and produce a high rate flow as the other member injected a thin stream of dye into the water flow pipe. This pattern was observed and measured at three points and all the process was repeated.
Part B
The manometer was set with its base leveled and its tubes inclined to 45 from the horizon (Fig-3). The two readings and were observed to be about 329 mm when valves were closed and no stream was flowing.
The person in charge of adjusting the rotameters opened the high flow rotometer’s valve (low flow was closed) for 10 times during the lab session with flow rate Q, starting from 0.04 l/s and increments of 0.02 l/s per trial.
For the next set of trials, the high flow valve was closed and the low flow was opened and the monometer was set with 15° incline. This time, the readings and were taken and the rate flow Q starting from 0.4 l/min and 10 equal 0.3 l/min increments.
Form the results of the
High Flow & Low Flow Rotameters (Fig-2. High flow on the right)
Water supply valve
Water Tank
Color Dye
Inclined manometers (Fig-3)
Control valve
Tapered inlet
Fig-2. Rotameter Fig-3. Monometer
These pictures were captured during the lab session
Procedure
Part A
This lab was performed by the group members as they closed both low and high flow rotameters (Fig-2) and filled the tank with water. Then, the large rotameter was opened when the water in the tank had reached the internal baffle, so the flow from the tank was reduced by doing so. One member was in charge of adjusting the level of the water so it was always maintained over the baffle’s level during the lab (Fig-1).
The first part of the lab was done by using a high flow rate (0.1 l/s) and a low flow rate (0.021 l/s) and observing the pattern of the sample dye’s movement as it would flow down the stream. To aim this goal, one member was charged to adjust the rotameter and produce a high rate flow as the other member injected a thin stream of dye into the water flow pipe. This pattern was observed and measured at three points and all the process was repeated.
Part B
The manometer was set with its base leveled and its tubes inclined to 45 from the horizon (Fig-3). The two readings and were observed to be about 329 mm when valves were closed and no stream was flowing.
The person in charge of adjusting the rotameters opened the high flow rotometer’s valve (low flow was closed) for 10 times during the lab session with flow rate Q, starting from 0.04 l/s and increments of 0.02 l/s per trial.
For the next set of trials, the high flow valve was closed and the low flow was opened and the monometer was set with 15° incline. This time, the readings and were taken and the rate flow Q starting from 0.4 l/min and 10 equal 0.3 l/min increments.
Form the results of the