how to use mesh constraint in corners which are the intersects of eulerian and lagrangian regions?

hi

I am interesting to use of mesh constraint in eulerian analysis of metal cutting. I use of eulerian surfaces in inflow and outflow of model. but when i use  mesh constraint in inflow and outflow nodes the nodes in corner of model where the eulerian and lagrangain regions intersect each other is known nonadaptive. how to use of mesh constraint to this nodes???

what is the best mesh constraint angle for this model ? because this is one of other errors.

how to use of 2 degrees of freedom for mesh constraint simultaneously at the inflow region? it is allowd to be use only in one degree of freedom in abaqus.

please help me to complet my simulation.

thanks