diff --git a/Tests/Data/HydroMechanics/Verification/hm1_1Dbeam.prj b/Tests/Data/HydroMechanics/Verification/hm1_1Dbeam.prj
index 6635984dccc045741847a0db3d22d81bbb5eede8..f459664d1a92d5697627a094c099fdcb5293d3d2 100755
--- a/Tests/Data/HydroMechanics/Verification/hm1_1Dbeam.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm1_1Dbeam.prj
@@ -40,7 +40,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force> 0 0 -9.81 </specific_body_force>
+            <specific_body_force> 0 0 0 </specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -182,7 +182,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -207,7 +207,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value>0</value>
+            <value>1</value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm1_2Dsquare.prj b/Tests/Data/HydroMechanics/Verification/hm1_2Dsquare.prj
index 7e8096f84e7e7e5cb79fdecee97c7518646d0868..f4c24762767bc3d08dd2d76b18ba41da7d503acc 100755
--- a/Tests/Data/HydroMechanics/Verification/hm1_2Dsquare.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm1_2Dsquare.prj
@@ -40,7 +40,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force> 0 0 -9.81 </specific_body_force>
+            <specific_body_force> 0 0 0 </specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -181,7 +181,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -206,7 +206,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value>0</value>
+            <value>1</value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm1_3Dcube.prj b/Tests/Data/HydroMechanics/Verification/hm1_3Dcube.prj
index fb5efe559f6ca44a4dae76373a92cfa62ff7fbc3..8523394a9896cca04dec4cca2c8d4663fa1d8e9f 100755
--- a/Tests/Data/HydroMechanics/Verification/hm1_3Dcube.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm1_3Dcube.prj
@@ -40,7 +40,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force> 0 0 -9.81 </specific_body_force>
+            <specific_body_force> 0 0 0 </specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -181,7 +181,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -206,7 +206,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value>0</value>
+            <value>1</value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm2_1D1bt.prj b/Tests/Data/HydroMechanics/Verification/hm2_1D1bt.prj
index df8fd1ab73e5183601b44ca6ff5bdf9730be5419..a79b55245f1bcd1ebfe0dafc16d1e0b4f9aac3fc 100755
--- a/Tests/Data/HydroMechanics/Verification/hm2_1D1bt.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm2_1D1bt.prj
@@ -39,7 +39,7 @@
                <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force>0 0 -9.81</specific_body_force>
+            <specific_body_force>0 0 0</specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -135,7 +135,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -160,7 +160,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value> 0 </value>
+            <value> 1 </value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm2_1D2bt.prj b/Tests/Data/HydroMechanics/Verification/hm2_1D2bt.prj
index 2f53cb873a82d4b809e68156da4c2d608cc8e56f..996b4ac1791f2521d471a2f499ee9b2e4e8181c5 100755
--- a/Tests/Data/HydroMechanics/Verification/hm2_1D2bt.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm2_1D2bt.prj
@@ -39,7 +39,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force>0 0 -9.81</specific_body_force>
+            <specific_body_force>0 0 0</specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -135,7 +135,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -160,7 +160,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value> 0 </value>
+            <value> 1 </value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm2_1Dbiot.prj b/Tests/Data/HydroMechanics/Verification/hm2_1Dbiot.prj
index 6052c88e46f8defbf8a8bb158ec9bd9e0b38829d..70ae31c01cfdc56ed750e0f16a1add6427faddbf 100755
--- a/Tests/Data/HydroMechanics/Verification/hm2_1Dbiot.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm2_1Dbiot.prj
@@ -39,7 +39,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force>0 0 -9.81</specific_body_force>
+            <specific_body_force>0 0 0</specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -135,7 +135,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -160,7 +160,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value> 0 </value>
+            <value> 1 </value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn1.prj b/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn1.prj
index fc6b5873cfbc7c8701c9f2518bb5a147edbee5e0..1399cd7996f42d351c13b7dd377c1725bb3135fd 100755
--- a/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn1.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn1.prj
@@ -39,7 +39,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force>0 0 -9.81</specific_body_force>
+            <specific_body_force>0 0 0</specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -135,7 +135,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -160,7 +160,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value> 0 </value>
+            <value> 1 </value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn2.prj b/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn2.prj
index 5a87230f66e66d2ae0efdda91c7efd590aed572c..8c1a5a4f5b8ba79b5c81329fe83382fdc01dd392 100755
--- a/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn2.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm2_1Dcolumn2.prj
@@ -39,7 +39,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force>0 0 -9.81</specific_body_force>
+            <specific_body_force>0 0 0</specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -139,7 +139,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -164,7 +164,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value> 0 </value>
+            <value> 1 </value>
         </parameter>
         <parameter>
             <name>zero</name>
diff --git a/Tests/Data/HydroMechanics/Verification/hm2_2Dmandel.prj b/Tests/Data/HydroMechanics/Verification/hm2_2Dmandel.prj
index d95141e171116b175e58a1c7625ddbadbbc34028..4861e69894065806fc7a593f4d91ea8b4459ca8b 100755
--- a/Tests/Data/HydroMechanics/Verification/hm2_2Dmandel.prj
+++ b/Tests/Data/HydroMechanics/Verification/hm2_2Dmandel.prj
@@ -39,7 +39,7 @@
                 <secondary_variable type="static" internal_name="epsilon_xz" output_name="epsilon_xz"/>
                 <secondary_variable type="static" internal_name="epsilon_yz" output_name="epsilon_yz"/>
             </secondary_variables>
-            <specific_body_force>0 0 -9.81</specific_body_force>
+            <specific_body_force>0 0 0</specific_body_force>
         </process>
     </processes>
     <time_loop>
@@ -139,7 +139,7 @@
             <group_id_property>MaterialIDs</group_id_property>
             <index_values>
                 <index>0</index>
-                <value>0</value>
+                <value>1</value>
             </index_values>
         </parameter>
         <parameter>
@@ -164,7 +164,7 @@
         <parameter>
             <name>rho_liquid</name>
             <type>Constant</type>
-            <value> 0 </value>
+            <value> 1 </value>
         </parameter>
         <parameter>
             <name>zero</name>