On the use of the Riesz transforms to determine the pressure term in the incompressible Navier-Stokes equations on the whole space

Autor: Álvarez-Samaniego, Borys, Álvarez-Samaniego, Wilson P., Fernández-Dalgo, Pedro G.
Rok vydání: 2020
Předmět:
Zdroj: Acta Applicandae Mathematicae 176 (2021), No. 1, Article No. 10, 10 pp
Druh dokumentu: Working Paper
DOI: 10.1007/s10440-021-00446-x
Popis: We give some conditions under which the pressure term in the incompressible Navier-Stokes equations on the entire $d$-dimensional Euclidean space is determined by the formula $\displaystyle \nabla p = \nabla \left(\sum_{i,j=1}^d \mathcal{R}_i \mathcal{R}_j (u_i u_j - F_{i,j}) \right)$, where $d \in \{2, 3\}$, ${\textbf{u}} := (u_1, \ldots, u_d)$ is the fluid velocity, $\mathbb{F}:= (F_{i,j})_{1\le i,j\le d}$ is the forcing tensor, and for all $k \in \{1, \ldots, d\}$, $\mathcal{R}_k$ is the $k$-th Riesz transform.
Comment: 12 pages
Databáze: arXiv
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