#
#  Yang & Tsai Data
#  Mean pressure 2mm slit V gutter
#
#  x= 20 mm
#
#  y (mm)   P
  30        1.4
  28        0.4
  26       -0.4
  24       -1.3
  22       -2.5
  20       -4.1
  18       -6.6
  16       -8.9
  14      -10.6
  12      -13.3
  10      -16.4
   8      -18.8
   6      -21.8
   4      -23.7
   2        -26
   0      -27.4
  -2        -29
  -4      -31.6
  -6      -32.7
  -8      -31.6
 -10      -28.1
 -12        -23
 -14      -17.5
 -16      -12.3
 -18       -9.6
 -20       -7.3
 -22         -5
 -24         -3
 -26       -1.6
 -28       -0.7
 -30          0