Nonlocal Cahn-Hilliard-Brinkman System with regular potential: Regularity and optimal control

TL;DR

This paper investigates the regularity and optimal control of a nonlocal Cahn-Hilliard-Brinkman system modeling phase separation in porous media, establishing existence, regularity, and optimality conditions for solutions.

Contribution

It extends existence results for weak and strong solutions and develops optimal control framework with first-order optimality conditions for the system.

Findings

Existence of weak and strong solutions established.

Optimal control existence proven.

First-order optimality conditions derived.

Abstract

In this paper we study optimal control problem for non local Cahn-Hilliard-Brinkman system which models phase separation of binary fluids in porous media. We consider the system in two dimensional bounded domain with regular potential. We extend recently proved existence of weak solution results for such a system and prove the existence of strong solution under certain assumptions on the forcing term and initial datum. Further using our regularity results, we study the tracking type optimal control problem. We prove the existence of an optimal control and establish the first order optimality condition. Lastly, we characterize optimal control in terms of the solution of corresponding adjoint system. The existence of solution for the adjoint system is also established.