Hydrogen Bubble Flow Visualisation System
- A compact, bench mounted, self- contained unit used for flow visualisation studies using water as the working fluid.
- The unit comprises a flow tank incorporating the working section and pumped recirculation system, plus a separate electronic control console.
- A low voltage variable speed pump with a unique fluid-drive unit is located under the working section.
- The electronic control console incorporates manual controls and a 4 line, 20 digit LCD that displays the relevant operating parameters.
- Flow patterns in the water are indicated by small hydrogen bubbles that are generated by an interchangeable fine platinum/ iridium wire cathode.
- A low voltage light source illuminates the hydrogen bubbles in the working section.
- Flow visualisation studies can be carried out using plain tap water without the need for additives.
- Optional camera mount allows still camera, video camera or web-cam
- (not supplied) to record the flow patterns.
- The following models, supplied for flow visualization studies, are made of clear polished acrylic and supplied in a protective container:
– One pair 330mm long straight guides
– One pair spacer blocks for straight guides (grey PVC)
– One pair blocks with radiused ends
– Four cylinders 6mm, 12mm, 19mm and 25mm diameter
– One aerofoil section
– One flat plate with radiused end
– One rectangular block 70mm x 40mm x 25mm
– One curved plate
– A toolkit is supplied
– A user instruction manual provides installation, commissioning, maintenance data, experimental information and suggested flow visualisation demonstrations.
Technical Specification:
| Item | Value |
| Pulse generator: | 3 to 2500 mS on and off periods |
| Light source: | 12 high intensity LEDs |
| Cathodes: | 35, 50 and 75mm lengths |
| Flow table capacity: | 20 litres (nominal) |
| Current generator range: | 0 to 100mA |
| Working section: | length: 425mm |
| width: 285mm | |
| depth: 36mm |
