diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/polyMesh/boundary b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/polyMesh/boundary
new file mode 100644
index 0000000000..b16c01a16f
--- /dev/null
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/polyMesh/boundary
@@ -0,0 +1,28 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+1
+(
+    walls
+    {
+        type            wall;
+        nFaces          64000;
+        startFace       3040000;
+    }
+)
+
+// ************************************************************************* //