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_box_year/screen-output

@@ -15,10 +15,10 @@ Number of degrees of freedom: 1,836 (1,122+153+561)
 
 *** Timestep 1:  t=100000 years, dt=100000 years
    Solving temperature system... 6 iterations.
-   Solving Stokes system (GMG)... 8+0 iterations.
+   Solving Stokes system (GMG)... 7+0 iterations.
 
    Postprocessing:
-     RMS, max velocity:                  0.871 m/year, 2.25 m/year
+     RMS, max velocity:                  126 m/year, 356 m/year
      Temperature min/avg/max:            273 K, 1555 K, 2014 K
      Heat fluxes through boundary parts: 0 W, 0 W, 1.972e+07 W, 1.998e+05 W
      Writing graphical output:           output-prescribed_solution_velocity_function_box_year/solution/solution-00001

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