What is VORTEX 2?
What is VORTEX 2?
The Verification of the Origins of Rotation in Tornadoes Experiment 2 (VORTEX2) is the largest tornado research project in history to explore how, when and why tornadoes form.
Was VORTEX 2 successful?
VORTEX2 was by far the largest and most ambitious tornado study ever with over 100 scientific participants from many different universities and research laboratories. “We still do not completely understand the processes that lead to tornado formation and shape its development.
What is the purpose of VORTEX2?
VORTEX2 is designed to improve our understanding of tornadogenesis, which ultimately will better allow us to assess the likelihood of tornadoes in supercell thunderstorms and possibly even tornado intensity, longevity, and cyclic behavior.
What is the mechanism of a tornado?
A tornado is a violently rotating column of air in contact with the surface and a cumuliform cloud base. Tornado formation is caused by the stretching and aggregating/merging of environmental and/or storm-induced vorticity that tightens it into an intense vortex.
Where should you hide in a tornado without a basement?
The safest place in the home is the interior part of a basement. If you don’t have a basement, go to an inside room, without windows, on the lowest floor. This could be a center hallway, bathroom, or closet. Avoid taking shelter where there are heavy objects on the floor directly above you.
Is there an ef6 tornado?
No. There’s no such thing as an EF-6 tornado. The highest rating that can be assigned to a tornado, based on how much damage it does, is an EF-5.
What do the numbers mean in the vortex equation?
Re – the Reynolds number (= Ud/v), the ratio of inertia forces to viscous forces. St – the Strouhal number (=fStd/U), the dimensionless vortex Shedding frequency. KC – Keulegan-Carpenter number (=UmaxT/d = Umax/fexd) Vr – the reduced velocity (=U/fexd), the approach velocity normalized The the excitation frequency and the diameter.
Is vortex flow in free space physically possible?
The ideal irrotational vortex flow in free space is not physically realizable, since it would imply that the particle speed (and hence the force needed to keep particles in their circular paths) would grow without bound as one approaches the vortex axis.
How does the speed of particles in a vortex vary?
In theory, the speed u of the particles (and, therefore, the vorticity) in a vortex may vary with the distance r from the axis in many ways. There are two important special cases, however:
What is the definition of a vortex in fluid mechanics?
Vortex. In most vortices, the fluid flow velocity is greatest next to its axis and decreases in inverse proportion to the distance from the axis. In the absence of external forces, viscous friction within the fluid tends to organize the flow into a collection of irrotational vortices, possibly superimposed to larger-scale flows,…
