Fig.1

a.) Center of tunnel: Belt off+B.L. suct. off

MEAN-VALUES

 --X--        --Y--
  0.71654510   1.50000000
  0.72540075   1.70000000
  0.73334915   1.90000000
  0.74374714   2.10000000
  0.75194360   2.30000000
  0.76019453   2.50000000
  0.76551133   2.70000000
  0.77247787   2.90000000
  0.78087608   3.10000000
  0.79005035   3.30000000
  0.79563066   3.50000000
  0.80238729   3.70000000
  0.80638018   3.90000000
  0.81398640   4.10000000
  0.81940049   4.30000000
  0.82193599   4.50000000
  0.83156638   4.70000000
  0.83584811   4.90000000
  0.84115550   5.10000000
  0.84462938   5.30000000
  0.84869195   5.50000000
  0.85346628   5.70000000
  0.85884477   5.90000000
  0.86213696   6.10000000
  0.86796906   6.30000000
  0.87231259   6.50000000
  0.87290670   6.70000000
  0.87863208   6.90000000
  0.88195116   7.10000000
  0.88404001   7.30000000
  0.88642139   7.50000000
  0.89161437   7.70000000
  0.89351314   7.90000000
  0.89704255   8.10000000
  0.90158074   8.30000000
  0.90811605   8.50000000
  0.90588908   8.70000000
  0.90884750   8.90000000
  0.91026527   9.10000000
  0.91290476   9.30000000
  0.92035907   9.50000000
  0.92046239   9.70000000
  0.92258784   9.90000000
  0.92322830  10.10000000
  0.92771608  10.30000000
  0.92836053  10.50000000
  0.93211701  10.70000000
  0.93265357  10.90000000
  0.93426467  11.10000000
  0.93677538  11.30000000
  0.93738669  11.50000000
  0.94063804  11.70000000
  0.94044404  11.90000000
  0.94382553  12.10000000
  0.94922623  12.30000000
  0.94949474  12.50000000
  0.95075971  12.70000000
  0.95289180  12.90000000
  0.95329238  13.10000000
  0.95470692  13.30000000
  0.95589615  13.50000000
  0.95817212  13.70000000
  0.95950029  13.90000000
  0.96215418  14.10000000
  0.96452451  14.30000000
  0.96590624  14.50000000
  0.96628472  14.70000000
  0.96664219  14.90000000
  0.96941359  15.10000000
  0.97069103  15.30000000
  0.97188004  15.50000000
  0.97392390  15.70000000
  0.97364715  15.90000000
  0.97573390  16.10000000
  0.97723131  16.30000000
  0.97805081  16.50000000
  0.97868463  16.70000000
  0.98087153  16.90000000
  0.98095134  17.10000000
  0.98279471  17.30000000
  0.98269271  17.50000000
  0.98368975  17.70000000
  0.98556307  17.90000000
  0.98636279  18.10000000
  0.98620364  18.30000000
  0.98722770  18.50000000
  0.98804384  18.70000000
  0.98997826  18.90000000
  0.99021559  19.10000000
  0.99101551  19.30000000
  0.99129462  19.50000000
  0.99247324  19.70000000
  0.99322570  19.90000000
  0.99368760  20.10000000
  0.99410444  20.30000000
  0.99384911  20.50000000
  0.99442524  20.70000000
  0.99549239  20.90000000
  0.99492004  21.10000000
  0.99516532  21.30000000
  0.99580542  21.50000000
  0.99654097  21.70000000
  0.99636191  21.90000000
  0.99637761  22.10000000
  0.99705341  22.30000000
  0.99707459  22.50000000
  0.99738668  22.70000000
  0.99777009  22.90000000
  0.99772747  23.10000000
  0.99818456  23.30000000
  0.99796762  23.50000000
  0.99800886  23.70000000
  0.99930571  23.90000000
  0.99958497  24.10000000
  0.99919357  24.30000000
  0.99956621  24.50000000
  0.99893787  24.70000000
  0.99969891  24.90000000
  0.99970358  25.10000000
  1.00053883  25.30000000
  1.00074173  25.50000000
  1.00049470  25.70000000
  1.00026888  25.90000000
  1.00064425  26.10000000
  1.00122566  26.30000000
  1.00137634  26.50000000
  1.00144067  26.70000000
  1.00192374  26.90000000
  1.00247862  27.10000000
  1.00265560  27.30000000
  1.00251019  27.50000000
  1.00235384  27.70000000
  1.00258766  27.90000000
  1.00295961  28.10000000
  1.00308675  28.30000000
  1.00305965  28.50000000
  1.00308897  28.70000000
  1.00312605  28.90000000
  1.00419689  29.10000000
  1.00381152  29.30000000
  1.00418155  29.50000000
  1.00461561  29.70000000
  1.00431922  29.90000000
  1.00368010  30.10000000
  1.00358362  30.30000000
  1.00383727  30.50000000
  1.00282572  30.70000000
  1.00402977  30.90000000
  1.00401431  31.10000000
  1.00363860  31.30000000
  1.00375732  31.50000000
  1.00617364  51.50000000
  1.01283032 101.50000000
  1.01378928 151.50000000
  1.01377667 216.50000000
