The Reynolds law of dynamic similarity or Reynolds similitude, mentions that if two fluids circulation around similar structures with various length scales, they are hydrodynamically identical provided they display the same Reynolds number.Quantum Superfluids and Reynolds SimilitudeHowever, this Reynolds similitude is not used to quantum superfluids, as they do not have viscosity– at least, thats what researchers have actually believed. (Lower) Coarse-grained quantum vortices can reproduce the prediction of the Reynolds similitude by forming a rough wake with high Reynolds number specified with the quantum viscosity. Hiromitsu Takeuchi, a lecturer in the Graduate School of Science at Osaka Metropolitan University, just recently released his method in Physical Review B.Overturning Traditional Theories”Superfluids have long been thought about an apparent exception to the Reynolds similitude,” Dr. Takeuchi stated, discussing that the Reynolds law of similitude states that if two circulations have the same Reynolds number, then they are physically similar.
The Reynolds law of vibrant similarity or Reynolds similitude, specifies that if two fluids circulation around similar structures with various length scales, they are hydrodynamically identical provided they show the same Reynolds number.Quantum Superfluids and Reynolds SimilitudeHowever, this Reynolds similitude is not applied to quantum superfluids, as they do not have viscosity– at least, thats what scientists have thought. (Lower) Coarse-grained quantum vortices can replicate the forecast of the Reynolds similitude by forming an unstable wake with high Reynolds number specified with the quantum viscosity. Hiromitsu Takeuchi, a speaker in the Graduate School of Science at Osaka Metropolitan University, just recently published his method in Physical Review B.Overturning Traditional Theories”Superfluids have actually long been considered an apparent exception to the Reynolds similitude,” Dr. Takeuchi said, explaining that the Reynolds law of similitude states that if 2 circulations have the very same Reynolds number, then they are physically identical.”This research study focuses on a theoretical concern in comprehending quantum turbulence in superfluids and reveals that the Reynolds similitude in superfluids can be verified by determining the terminal speed of a things falling in a superfluid,” Dr. Takeuchi said.
