Zhilei Liang, Apala Majumdar, Dehua Wang and Yixuan Wang
Commun. Math. Anal. Appl., doi:10.4208/cmaa.2022-0021
Publication Date : 2023-01-21
The equations of stationary compressible flows of active liquid crystals are considered in a bounded three-dimensional domain. The system consists of the stationary Navier-Stokes equations coupled with the equation of $Q$-tensors and the equation of the active particles. The existence of weak solutions to the stationary problem is established through a two-level approximation scheme, compactness estimates and weak convergence arguments. Novel
techniques are developed to overcome the difficulties due to the lower regularity of stationary solutions, a Moser-type iteration is used to deal with the
strong coupling of active particles and fluids, and some weighted estimates on
the energy functions are achieved so that the weak solutions can be constructed
for all values of the adiabatic exponent $\gamma>1.$