diff --git a/.gitignore b/.gitignore
index 2af702d..69f5c25 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 *.GCC_
-*.o
\ No newline at end of file
+*.o
+*.log
+CMakeFiles/
\ No newline at end of file
diff --git a/fluid-openfoam/0/T b/fluid-openfoam/0/T
index 1fc78ee..3b365ab 100644
--- a/fluid-openfoam/0/T
+++ b/fluid-openfoam/0/T
@@ -14,8 +14,8 @@ boundaryField
 {
     interface
     {
-        type            fixedValue;
-        value           uniform 400.0;
+        type            fixedGradient;
+        gradient        uniform 0;
     }
     inlet
     {
diff --git a/fluid-openfoam/system/blockMeshDict b/fluid-openfoam/system/blockMeshDict
index 9661a7f..6ce0c1f 100644
--- a/fluid-openfoam/system/blockMeshDict
+++ b/fluid-openfoam/system/blockMeshDict
@@ -8,7 +8,7 @@ FoamFile
 
 dz 0.01;
 
-r_inner 0.077;          // inner cup radius (without walls)
+r_inner 0.083;          // inner cup radius (without walls)
 dx1 #calc "$r_inner/2";
 
 y 0.105;                // top of cup