Version 1
: Received: 26 December 2023 / Approved: 27 December 2023 / Online: 27 December 2023 (05:23:24 CET)
How to cite:
Moschandreou, T.E. Existence of a Hölder Continuous extension on embedded balls of the 3-Torus for the Periodic Navier Stokes Equations. Preprints2023, 2023122055. https://doi.org/10.20944/preprints202312.2055.v1
Moschandreou, T.E. Existence of a Hölder Continuous extension on embedded balls of the 3-Torus for the Periodic Navier Stokes Equations. Preprints 2023, 2023122055. https://doi.org/10.20944/preprints202312.2055.v1
Moschandreou, T.E. Existence of a Hölder Continuous extension on embedded balls of the 3-Torus for the Periodic Navier Stokes Equations. Preprints2023, 2023122055. https://doi.org/10.20944/preprints202312.2055.v1
APA Style
Moschandreou, T.E. (2023). Existence of a Hölder Continuous extension on embedded balls of the 3-Torus for the Periodic Navier Stokes Equations. Preprints. https://doi.org/10.20944/preprints202312.2055.v1
Chicago/Turabian Style
Moschandreou, T.E. 2023 "Existence of a Hölder Continuous extension on embedded balls of the 3-Torus for the Periodic Navier Stokes Equations" Preprints. https://doi.org/10.20944/preprints202312.2055.v1
Abstract
\abstract{The existence of vorticies is well known in fluid mechanics and particularly in turbulence theory. In the context of the millennium problem of the Clay Institute on the existence (or not) of Global solutions in time of the Periodic Navier Stokes equations (PNS) results are now proposed to confirm that Global solutions do not exist in the general case of PNS defined on $\mathbb{T}^3$. This corresponds to part ($D$) proposition in the Navier Stokes problem as posted by C.Fefferman. Recent work has shown that for the Euler equations defined on the 3-Torus there exists a H\"older continuous solution for the third component of velocity $v_3$ at the center of each cell or cube of the 3-Torus Lattice. It has also been determined that as the kinematic viscosity changes from the corresponding value at $\nu=0$ to the fully viscous case for the Periodic Navier Stokes equations (PNS) at the value $\nu=1$ the solution reaches a peak ($\frac{\partial v_3}{\partial y_3} = 0$ ) in $y_3$. (third component of $\vec{r}=(y_1,y_2,y_3)$ in Cartesian co-ordinates) Here in the viscous case there exists a dipole which is not centered at the center of the cell of the Lattice. This immediately implies that since the dipole by definition has an equal in magnitude positive and negative peak in the third component of velocity, then the dipole Riemann cut-off surface is covered by a closed surface which is the sphere $\|\vec{r}\|=1$ and where a given cell of dimensions $[-1,1]^3$ is circumscribed on a sphere of radius $1$. For such a closed surface containing a dipole it necessarily follows that the flux at the surface of the sphere of $v_3$ wrt to surface normal $\vec{n}$ is zero including at $y_i, i=1\dots 3$ is zero at the points where the surface of sphere touches the cube walls. At the finite time singularity on the sphere a rotation boundary condition is deduced. Here $\frac{\partial v_3}{\partial \vec{n}}= \vec{n}\cdot \nabla v_3$. Also a boundary condition on the sphere shows rotation of sphere. Finally as a result, on the sphere a solution for $v_3$ is obtained which is proven to be H\"older continuous and it is proven that it is possible to extend H\"older continuity on the sphere uniquely to all of the interior of the ball.}
Computer Science and Mathematics, Applied Mathematics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
