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Research Article Open Access
The reference length or scale length used in Reynolds number definition is of considerable importance. A quick review of Reynolds number definitions used in batch and continuous flow systems showed that this reference scale can be theoretical or conventional. Using curvature quantity coming from general relativity theory, we showed that Reynolds number could be seen as the ratio of two curvatures. This result could give interesting information for the design of high performances exchangers. Moreover, the use of curvature allowed establishing a relationship between momentum diffusivity and velocity gradient tensor. Applied to general relativity equation, we showed a strong link between gravity theory and hydrodynamics.
Reynolds, Navier-Stokes, Einstein, Curvature, Viscosity, Reference length, Shear rate, Momentum diffusivity, Gravity, Fluid dynamics, Autowave Vortex,Dissipative Particle Dynamics,Electron Microscopy, Electronics Fluid Dynamics,Gravitation, Magnetism, Mechanical Engineering, Molecular Dynamics Physics, Quantum Vortex, Radio Astronomy, Scalar Wave, Superconductors, Superfluid?s,Turbulent Flow, Vertical Flow, Vortex, Vortices, Wireless