#
#  Yang & Tsai Data
#  Mean pressure 1mm slit V gutter
#
#  x= 15 mm
#
#  y (mm)   P
  30        0.6
  28       -0.1
  26       -0.9
  24       -2.4
  22         -4
  20       -6.4
  18       -9.3
  16      -10.8
  14      -15.1
  12      -22.3
  10      -26.7
   8        -30
   6      -32.5
   4      -33.3
   2      -32.7
   0      -31.4
  -2      -31.4
  -4      -31.1
  -6      -29.8
  -8      -27.4
 -10      -23.2
 -12      -17.4
 -14      -11.6
 -16       -8.7
 -18       -6.4
 -20       -3.6
 -22       -1.3
 -24       -0.4
 -26        0.4
 -28        1.5
 -30          2