Summary

The U-tube is a standard model that is used as a sample example in textbooks. In particular, the height of the layers in the shoulders of the tube is discussed, depending on the density of the liquids.
Students are provided with different shapes of communicating vessels that are modeled and printed with transparent filament.

Print Settings

Printer Brand:

Prusa

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>i3 MK3</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0,35 mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>100%</p></div></p>                                                    <strong>Filament:</strong> Filament PM PLA                transparent

Post-Printing

                <p class="detail-caption"><strong>On one arm, we begin to pour immiscible liquid with the first, for example, gasoline to water or oil to water. The density of the first liquid is known. Because they have substances of different density, they are maintained according to the formula:</strong></p>            <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/85/4c/ee/1a/72/FORMULA.PNG"></p>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/26/c6/38/94/36/POSSIBLE_SOLUTION_OFOR_CALCULATING.PNG"></p>                <p class="detail-caption"><strong>Possible solution for calculating.</strong></p>            <div><p>To verify the calculation, we use a direct measurement by areometr (range 700-800 kgu00b7m<sup>-3</sup>). The density of Natural 95 <i>p</i><sub>2</sub> measured by the density meter is 741 kg u00b7 m<sup>-3</sup>.</p></div>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/7b/5b/12/1a/c5/AREOMETR_BENZIN_DETAIL.jpg"></p>                <p class="detail-caption"><strong>Detail of the measurement scale hydrometer density in a graduated cylinder.</strong></p>            <div><p>The Natural Fill 95 density table is 725-775 kg u00b7m<sup>-3</sup> at 15 u00b0 C (Jahoda, et al., 2018). Inaccuracies come into measurement using the table for water density and imperfectly subtracting fluid levels due to the translucent color of gasoline.</p></div>

U tube communicating vessels