code: def height_lfom_orifices(FLOW,HL_LFOM,drill_bits):
      
      return (np.arange((orifice_diameter(FLOW,HL_LFOM,drill_bits)*0.5),
                        HL_LFOM,
                        (dist_center_lfom_rows(FLOW,HL_LFOM))))
docs: Calculates the height of the center of each row of orifices.
      The bottom of the bottom row orifices is at the zero elevation
      point of the LFOM so that the flow goes to zero when the water height
      is at zero.