Education and demonstration – Fluid flow or wave motion
Patent
1984-07-19
1986-02-18
Grieb, William H.
Education and demonstration
Fluid flow or wave motion
248 94, 434188, D 7 68, G09B 2302, G09B 2312
Patent
active
045711917
ABSTRACT:
A method and apparatus for teaching physical principles of fluid flow and the mathematical principles of integration by concrete, measurable examples comprised the use of a plurality of teaching funnels each capable of being supported by a mounting mechanism in a stable position over a receptacle. Each funnel has perimetric sidewalls with interior surfaces that conform to equations that will provide an integrable function when plugged into the equation for computing the time it takes for the funnel to empty of liquid. The funnels can have a base covering the lower end of the funnel with an outlet orifice formed in the base. The orifice is spaced a predetermined distance away from the sidewalls to achieve a desired outflow rate. The different sidewalls can be formed of different shapes as long as each conforms with a formula that yields an integrable function when plugged into the equation for computing the time it takes for the funnel to empty of liquid. A simple configuration is a funnel with a rectangular horizontal cross-section, three straight sidewalls, and one curvilinear sidewall. The funnels also can be formed with a circular or otherwise formed horizontal cross-section and can be formed in multiple vertical levels. The funnel top can be open or closed and pressurized to vary the pressure on the liquid in the funnel.
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Chicago Apparatus Co. Catalog, 1954, pp. 417, 421, 427 and 894.
Grieb William H.
Waters John A.
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