When humans kick swim through water, vortices form around their legs, generating the force that propels them forward. However ...

Researchers at University of Tsukuba have discovered that the structure of vortices generated around a swimmer's feet changes with increasing speed during underwater undulatory swimming. Specifically, ...

Von Karman vortex streets are a linear chain of spiraling whirlwinds. They were named after Theodore Von Karman, a co-founder of NASA's Jet Propulsion Laboratory, regarded by many as the ...

This paper uses a dynamic model based on the discrete vortex method to define vortices groups ... Results show that at close distances from the robotic fish, a jet flow with a speed greater than the ...

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...

In 2023, Sierra Space announced the VR35K-A had completed engine component testing, which allowed the company to advance to the full engine hot fire testing campaign. Next, Sierra Space will continue ...

So, that's why jet streams are important.” The polar jet stream and polar vortex are two rings of fast-moving air around the Arctic, which play a large role in world weather patterns ...