Venturi Mixing Nozzle Bluff Bodies for Low-Loss Fluid Mixing

The patent applies local quality by introducing bluff bodies at specific locations within the mixing nozzle to create localized low-pressure zones and turbulence. These bluff bodies are strategically positioned to generate mixing effects only where needed, rather than modifying the entire nozzle structure. This localized approach improves mixing efficiency while minimizing overall pressure drop and energy loss.

The bluff bodies in the mixing nozzle generate turbulence and chaotic flow patterns that can be considered a form of mechanical vibration or oscillation in the fluid flow. This turbulence enhances mixing between fluids of different densities by creating chaotic advection and increasing interfacial area, thereby improving mixing efficiency without requiring excessive pressure drop.

By placing bluff bodies at specific locations within the mixing nozzle, the patent creates localized regions of enhanced mixing and turbulence. This localized modification improves mixing efficiency without requiring system-wide increases in fan power, as the bluff bodies generate the necessary mixing effects through their geometric configuration and interaction with the flow.

The patent converts the potentially harmful effect of boundary layer separation into a beneficial turbulence-generating mechanism. The bluff bodies are designed to exploit the flow conditions that would normally cause separation and transform this into useful chaotic mixing, thereby reducing the need for additional fan power while improving mixing efficiency.

The bluff bodies generate turbulence and chaotic flow patterns that act as a form of mechanical mixing. This turbulence creates chaotic advection and enhances the mixing of lighter and heavier fluids by preventing stable stratification and promoting intermittent mixing events, thereby improving mixing efficiency while maintaining flow stability.

The patent modifies flow parameters by introducing bluff bodies that change the velocity distribution, pressure distribution, and turbulence characteristics within the mixing nozzle. These parameter changes create conditions that favor stable mixing of fluids with different densities, preventing the lighter fluid from simply rising and forming unstable flow patterns.