Question: Problem in finding solution of system PDEs

Dearz!

Hope everyone is fine with everything. I am facing problem to solve the system of PDEs in the attached file. Is there any built-in command to the solve the attached system of PDEs via FEM, FDM, SIMPLER algorithm or some other efficient method? Please try to fix my problem. I am waiting your positive response. Thanks in advance.

PDEs_sol.mw

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