making the interleaved solver works for blackoil polymer simulator.

The CPR solver does not work yet. An error will be thrown if people
specify to use CPR linear solver.

opm/polymer/fullyimplicit/BlackoilPolymerModel.hpp

@@ -234,6 +234,8 @@ namespace Opm {
                                            const SolutionState& state,
                                            WellState& xw);
 
+        void updateEquationsScaling();
+
         void
         computeMassFlux(const int               actph ,
                         const V&                transi,

opm/polymer/fullyimplicit/BlackoilPolymerModel_impl.hpp

@@ -107,6 +107,7 @@ namespace Opm {
             if (!active_[Water]) {
                 OPM_THROW(std::logic_error, "Polymer must solved in water!\n");
             }
+            residual_.matbalscale.resize(fluid_.numPhases() + 1, 1.1169); // use the same as the water phase
             // If deck has polymer, residual_ should contain polymer equation.
             rq_.resize(fluid_.numPhases() + 1);
             residual_.material_balance_eq.resize(fluid_.numPhases() + 1, ADB::null());
@@ -339,6 +340,26 @@ namespace Opm {
             residual_.material_balance_eq[poly_pos_] = pvdt_ * (rq_[poly_pos_].accum[1] - rq_[poly_pos_].accum[0])
                                                + ops_.div*rq_[poly_pos_].mflux;
         }
+
+
+        if (param_.update_equations_scaling_) {
+            updateEquationsScaling();
+        }
+
+    }
+
+
+
+
+
+    template <class Grid>
+    void BlackoilPolymerModel<Grid>::updateEquationsScaling()
+    {
+        Base::updateEquationsScaling();
+        if (has_polymer_) {
+            const int water_pos = fluid_.phaseUsage().phase_pos[Water];
+            residual_.matbalscale[poly_pos_] = residual_.matbalscale[water_pos];
+        }
     }