pressure problem in reservoir
hi, I am modeling a reservoir and a hydro power tunnel.Here is my geometry definition. There is a trapezoidal approach channel for water flow(depth 2m and width 13.5 m) and 20 m long. at the end of this channel is a sloping bed( 2.5 H: 1 vertical).After this there are trash racks.Then after trash rack a tunnel begins( diameter 3m) which extends for 18 m. I set massflow inlet and outflow boundary condition.For free surface I used wall with zero shear BC.Then I set reference pressure location at a point on top free surface.I set operating pressure as 101300 Pa. There is also a drop in head ( Due to trash rackPorous) which is 15 cm (water depth).I am getting some junk values for pressure contours. Could anyone help me in specifying pressure for my problem.Very urgent please thanks in advance
