change tests to increase constrained velocities

Author: tjhei

tests/prescribed_solution_velocity_function_box.prm

@@ -96,7 +96,7 @@ subsection Prescribed solution
         end
         subsection Function
             set Variable names = x,y,t
-            set Function expression = y*t;x*t
+            set Function expression = y*(1+t);x*t
         end
     end
 end

tests/prescribed_solution_velocity_function_box_year.prm

@@ -97,7 +97,7 @@ subsection Prescribed solution
         end
         subsection Function
             set Variable names = x,y,t
-            set Function expression = y*t/1e11;x*t/1e11
+            set Function expression = y*(1+t)/1e11;x*t/1e11
         end
     end
 end

tests/prescribed_solution_velocity_function_chunk.prm

@@ -105,7 +105,7 @@ subsection Prescribed solution
         subsection Function
             set Variable names = r, phi, t
             set Function constants = Ro=6371e3, Ri=5371e3, phi_min = 1.3962634016
-            set Function expression = (r-Ri)*t;((phi-phi_min)*Ro)*t
+            set Function expression = (r-Ri)*t;((phi-phi_min)*Ro)*(1+t)
         end
     end
 end