Item Description

Features
 two-dimensional, in viscid potential flow
 visualization of streamlines
 flow around different models: drag bodies and changes in cross-section
 modeling the flow around bodies by overlaying the parallel flow and sources and / or sinks
 sources and sinks, individually or in combination

The core element of the Scitech Potential Flow Demonstrator Model FM 110 trainer is a classic Hele-Shaw cell with additional water connections for sources and sinks. The laminar, two-dimensional flow is achieved by water flowing at low velocity in a narrow gap between two parallel glass plates. The parallel flow generated in this way is nonvertical and can be regarded as potential flow. Sources and sinks are generated via eight water connections in the bottom glass plate. The streamlines are displayed on the glass plate by injecting a contrast medium (ink).
In experiments the flow around bodies is demonstrated by inserting models into the parallel flow. Interchangeable models such as a cylinder, guide vane profile or nozzle contour are included. To model the flow without models, it is possible to overlay parallel flow, sources, sinks and dipoles as required. This allows the demonstration of the formation of Rankine half-bodies. The water flow rate and the quantity of contrast medium injected can be adjusted by using valves. The water connections are also activated by valves and can be combined as required.