Regensburg 2007 – wissenschaftliches Programm

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DD: Fachverband Didaktik der Physik

DD 19: Postersitzung

DD 19.23: Poster

Dienstag, 27. März 2007, 14:00–15:30, H31

An approach of Poiseuille-Hagen's law with the aim of sensor and computer technology — •Ioannis Sianoudis¹ and Eleni Drakaki² — ¹Physics laboratory, Department of Physics, Chemistry & Materials Technology, Technological Educational Institute (TEI) of Athens, Ag. Spyridonos, 12210 Egaleo, e-mail: jansian@teiath.gr — ²Physics Department, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece, email: edrakaki@central.ntua.gr,

Simple interferences based on the use of computer and sensor technology, are often proposed and applied in known educational experiments, with successful results, giving them a modern and attractive renewal with a new educational profit. In framework of this approach, the present study proposes a different experimental set up for the verification and the confirmation of Poiseuille-Hagen' law, concerning the flow of real fluids through tubes, with considerable and useful applications in technology and medicine. In the proposed educational procedure experimental measurements of motion, force, and fluid outflow are collected using a computer program, via sensors, for the determination of hydrostatic pressure and the flow rate respectively. The dependence of the flow rate by parameters as viscosity of the fluid, length and radius of the tube and the pressure difference between the ends of the tube, are objects that allows an educational useful activity in the labor for first year students of technological faculties.