Fluid simulation and Creekbed

Dear Blender Artists,<br>
I am rather new to blender, and I am having troubles with my fluid simulation. My friend wants to make a city, and next to it, have a river or creek flowing by. We are having troubles with the inflow of our scene going into the creekbed, instead it just bounces off the top (where it should be flowing down). My 3D modeling teacher told me that simply increasing the resolution should fix it, however, it has not. creekbed.blend (1.2 MB)<br>
Thank you all!<br>

The creekbed obstacle has its face normals all pointing inwards instead of outwards. Select all the vertices and recalculate its normals with Ctrl+N. Then bake the fluid

Thank you very very much. This fixes all of the problems.