Volume 47, Issue 17 pp. 13437-13466
RESEARCH ARTICLE

Insensitizing controls for the micropolar fluids

Qiang Tao

Qiang Tao

School of Mathematical Sciences, Shenzhen University, Shenzhen, China

Contribution: Funding acquisition, Writing - original draft

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Zheng-an Yao

Zheng-an Yao

School of Mathematics, Sun Yat-sen University, Guangzhou, China

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Xuan Yin

Corresponding Author

Xuan Yin

School of Mathematics, Sun Yat-sen University, Guangzhou, China

Correspondence

Xuan Yin, School of Mathematics, Sun Yat-sen University, Guangzhou 510275, China.

Email: [email protected]

Communicated by: S. Nicaise

Contribution: Writing - original draft

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First published: 22 May 2024

Abstract

In this paper, we investigate the existence of insensitizing controls for the micropolar fluids in a bounded domain with homogeneous Dirichlet boundary conditions and arbitrarily located internal controller. The study of insensitizing controls is essential to solve a stability problem, which means that we look for controls such that some functionals of the velocity fields (the so-called sentinels) are insensitive to the small perturbations of initial data. The problem of insensitizing controls is transformed into a suitable controllability problem for a cascade system. Our proof relies on a new global Carleman inequality and the inverse mapping theorem.

CONFLICT OF INTEREST STATEMENT

This work does not have any conflicts of interest.

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