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RESEARCH PRODUCT
A laboratory experiment on inferring Poiseuille's law for undergraduate students
M.j. HernándezJesús DelegidoM. DolzA. Casanovassubject
PhysicsRest (physics)Laboratory flaskFlow (mathematics)LawGeneral Physics and AstronomyVacuum pumpTube (container)Hagen–Poiseuille equationMeasure (mathematics)law.inventionVolumetric flow ratedescription
In this paper a laboratory experiment is proposed to infer Poiseuille's law. A simple set-up based on two flasks joined by a detachable tube allows one to measure using tubes of different radii and different lengths. One of the flasks is connected to a vacuum pump to control the pressure differential between the tube extremes. The influence on the flow of different radii, lengths, pressures and viscosities can be studied in a didactic way by measuring the flow rate for each of these variables. The experiment can be performed getting together the students in groups, so that each group concentrates on the effect on the flow of a specific variable, leaving the rest fixed. After putting together all these results the law of Poiseuille can be obtained as a very good approach.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-07-17 | European Journal of Physics |