Agnirva Space Premier League - Expedition #31335: Capillary Forces in Space: Fluid Behavior on Curved Structures

What happens when fluids interact with donut-shaped objects in space? The 'Microfluidic Investigation of Capillary Forces on Toroidal Structures' experiment dives into this intriguing question aboard the ISS.

Capillary action—the movement of liquid through narrow spaces without external force—is a key fluid behavior, especially critical in microgravity. This experiment focuses on how these forces play out on toroidal (doughnut-like) shapes, which are common in fluid systems for spacecraft, such as fuel tanks or life-support systems.

In space, where gravity doesn't dominate, capillary forces take center stage. Studying them on toroidal structures provides insights into how fluids can be managed in advanced spacecraft designs. Engineers and scientists from Tirage Capital and Enpulsion aim to harness this knowledge for innovations in propulsion systems and microfluidic devices.

Using microchannels and sophisticated sensors, the research maps fluid behavior under varying conditions. The results help refine models that could influence everything from satellite fuel usage to water recycling systems aboard long-duration missions.

Supported by NASA, this study showcases how detailed fluid analysis in space can support more reliable, efficient technologies both on Earth and in orbit.

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