Micro Bubble Generator BG-1000

Product Details

The TSI Bubble Generator BG-1000 surfactant/water-based micro bubble generator (patent pending US 2011/0284648 A1), is designed to produce large amounts of bubbles as seed particles for PIV – planar and volumetric, for flow measurements in wind tunnels (opened or closed type) or open environments. The bubbles, with a mean diameter of 15 microns, are excellent to follow the flow around small structures or in boundary layer, to provide measurements with the highest accuracy and spatial resolution. The high concentration output of 10⁷ bubbles/s and the long residence time, make this generator the ideal choice for your flow applications.

The surfactant/water-based bubbles with 15 micron mean size, allow planar PIV measurements with field of view up to 1.5 m by 1.5 m, as well as volumetric PIV with a volume size of more than 6000 cm³, and has excellent fidelity to resolve small structures of the flow.

Applications

Wind tunnel flows
Airflows in large scale facilities
Turbulent boundary layers
Flows around airfoil or objects
Wake flows
Two phase flows

Features and benefits

Bubbles with size of 15μm and neutrally buoyant in air flow environment
Bubbles spherical in shape, generating high intensity for large field of view or volume, at magnification of 0.025 or higher, without glared points
Long residence time of more than 30 minutes, making long time duration measurements feasible
Short settling velocity of 0.18 mm/s, giving the fidelity for the bubbles to follow flow around small structures
High bubble output of more than 10⁷ bubbles/s and high concentration of 20,000 bubbles/cc at the exit of nozzle, allowing the extraction of the smallest flow structure in measurements
Non-toxic and non-stick on window surface due to the low viscosity of the surfactant/water mixture
Easy to operate, as the generator is ready to be used in less than 5 minutes
Low cost of operation and ownership with simple and easy maintenance procedures without additional gas to purchase