#
#  Yang & Tsai Data
#  Mean pressure 0mm slit V gutter
#
#  x= 40 mm
#
#  y (mm)   P 
  30       6.9
  28       6.8
  26       6.4
  24       6.1
  22       5.7
  20       4.8
  18       3.5
  16       2.2
  14       0.6
  12      -0.9
  10      -2.4
   8        -4
   6      -5.7
   4      -6.5
   2        -7
   0        -7
  -2      -6.9
  -4      -6.2
  -6      -5.1
  -8        -4
 -10      -2.6
 -12      -0.8
 -14       0.7
 -16       2.5
 -18       3.9
 -20       5.1
 -22       5.9
 -24         7
 -26       7.1
 -28       7.4
 -30       7.4