Yasunori Maekawa
Kobe University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Yasunori Maekawa.
Communications in Partial Differential Equations | 2014
Yoshikazu Giga; Pen-Yuan Hsu; Yasunori Maekawa
We establish a Liouville type result for a backward global solution to the Navier-Stokes equations in the half plane with the no-slip boundary condition. No assumptions on spatial decay for the vorticity nor the velocity field are imposed. We study the vorticity equations instead of the original Navier-Stokes equations. As an application, we extend the geometric regularity criterion for the Navier-Stokes equations in the three-dimensional half space under the no-slip boundary condition.
Mathematical Models and Methods in Applied Sciences | 2009
Yasunori Maekawa
The asymmetric Burgers vortices are vortex solutions to the three dimensional stationary Navier-Stokes equations for viscous incompressible fluids in the presence of an asymmetric background straining flow. The asymmetry of the straining flow is expressed by a non-negative parameter less than
Archive | 2016
Humiya Kosaka; Yasunori Maekawa
1
Siam Journal on Mathematical Analysis | 2018
Yasunori Maekawa; Hideyuki Miura
. The Burgers vortices have been used as a model which expresses tube-like structures of concentrated vorticity fields in turbulence, and they are numerically well investigated especially in the case of large circulation numbers. However, their existence was proved mathematically only when either the asymmetry of the straining flow is not so strong or the circulation number is sufficiently small. In this paper we prove the existence of asymmetric Burgers vortices for all circulation numbers and each asymmetry parameter less than
Duke Mathematical Journal | 2018
David Gérard-Varet; Yasunori Maekawa; Nader Masmoudi
1
Communications on Pure and Applied Mathematics | 2014
Yasunori Maekawa
. We also obtain their asymptotic expansion at large circulation numbers, which gives an explanation for a symmetrizing effect by a fast rotation.
Zeitschrift für Angewandte Mathematik und Physik | 2011
Yasunori Maekawa
In this paper we study the vorticity equations for viscous incompressible flows in the half space under the no-slip boundary condition on the velocity field. In particular, the boundary condition for the vorticity field is presented explicitly, and the solution formula for the linearized problem is obtained.
Journal of Mathematical Analysis and Applications | 2009
Yasunori Maekawa
We consider the space of solenoidal vector fields in an unbounded domain
Journal of Mathematical Fluid Mechanics | 2011
Yasunori Maekawa
\Omega\subset \mathbb{R}^n
Journal of Functional Analysis | 2011
Yoshiyuki Kagei; Yasunori Maekawa
whose boundary is given as a Lipschitz graph. It is shown that the space of solenoidal vector fields is isomorphic to the