# Mahon & Meskell Triangular Tube Array, Surface Pressure Coefficients # # Pitch ratio = 1.97 # # Tube displacement: y/d= 3 % # #Position Free stream Velocity (m/s) # Angle 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 0 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 10 0.899 0.897 0.858 0.885 0.872 0.863 0.870 0.880 0.867 0.891 0.889 0.888 0.896 0.891 0.893 20 0.566 0.575 0.512 0.536 0.510 0.498 0.501 0.515 0.502 0.520 0.523 0.526 0.532 0.525 0.527 30 0.023 0.041 -0.053 -0.017 -0.045 -0.054 -0.046 -0.026 -0.025 -0.017 -0.007 0.002 0.003 0.003 0.002 40 -0.508 -0.466 -0.594 -0.566 -0.606 -0.621 -0.609 -0.585 -0.572 -0.579 -0.568 -0.553 -0.555 -0.554 -0.555 50 -0.870 -0.816 -0.971 -0.940 -0.995 -1.017 -1.007 -0.977 -0.958 -0.971 -0.964 -0.942 -0.944 -0.948 -0.947 60 -1.177 -1.105 -1.312 -1.292 -1.327 -1.324 -1.293 -1.245 -1.237 -1.257 -1.237 -1.227 -1.211 -1.190 -1.209 70 -1.217 -1.147 -1.335 -1.290 -1.381 -1.401 -1.389 -1.345 -1.338 -1.365 -1.349 -1.342 -1.330 -1.313 -1.334 80 -1.179 -1.141 -1.320 -1.268 -1.360 -1.385 -1.380 -1.339 -1.328 -1.357 -1.328 -1.329 -1.339 -1.317 -1.335 90 -1.063 -0.990 -1.159 -1.135 -1.217 -1.242 -1.253 -1.217 -1.206 -1.229 -1.220 -1.225 -1.233 -1.220 -1.242 100 -0.961 -0.910 -1.022 -0.949 -1.019 -1.012 -1.004 -0.978 -0.957 -0.962 -0.968 -0.976 -0.990 -0.974 -1.000 110 -0.814 -0.662 -0.755 -0.690 -0.738 -0.729 -0.725 -0.689 -0.677 -0.697 -0.642 -0.666 -0.699 -0.672 -0.673 120 -0.661 -0.507 -0.583 -0.510 -0.542 -0.522 -0.510 -0.474 -0.460 -0.471 -0.419 -0.435 -0.464 -0.434 -0.439 130 -0.505 -0.368 -0.438 -0.370 -0.405 -0.392 -0.381 -0.346 -0.333 -0.340 -0.302 -0.313 -0.335 -0.310 -0.318 140 -0.466 -0.356 -0.401 -0.347 -0.368 -0.345 -0.334 -0.305 -0.283 -0.277 -0.272 -0.269 -0.274 -0.262 -0.276 150 -0.389 -0.282 -0.351 -0.278 -0.307 -0.295 -0.282 -0.247 -0.233 -0.233 -0.211 -0.215 -0.221 -0.206 -0.214 160 -0.372 -0.257 -0.307 -0.257 -0.278 -0.261 -0.253 -0.218 -0.201 -0.198 -0.185 -0.185 -0.187 -0.174 -0.181 170 -0.323 -0.227 -0.294 -0.228 -0.257 -0.246 -0.235 -0.202 -0.189 -0.189 -0.172 -0.145 -0.149 -0.138 -0.145 180 -0.328 -0.239 -0.303 -0.230 -0.247 -0.235 -0.215 -0.183 -0.166 -0.163 -0.144 -0.142 -0.142 -0.130 -0.137 190 -0.364 -0.266 -0.324 -0.247 -0.264 -0.251 -0.236 -0.195 -0.180 -0.172 -0.155 -0.151 -0.151 -0.139 -0.146 200 -0.385 -0.295 -0.345 -0.271 -0.287 -0.279 -0.260 -0.222 -0.206 -0.200 -0.186 -0.181 -0.183 -0.172 -0.176 210 -0.450 -0.349 -0.398 -0.320 -0.335 -0.324 -0.303 -0.261 -0.247 -0.237 -0.223 -0.219 -0.222 -0.209 -0.213 220 -0.439 -0.353 -0.415 -0.345 -0.359 -0.359 -0.331 -0.292 -0.276 -0.266 -0.265 -0.255 -0.243 -0.244 -0.253 230 -0.529 -0.451 -0.522 -0.441 -0.443 -0.451 -0.415 -0.371 -0.353 -0.335 -0.346 -0.328 -0.306 -0.317 -0.325 240 -0.723 -0.597 -0.659 -0.559 -0.582 -0.567 -0.552 -0.487 -0.475 -0.455 -0.450 -0.441 -0.456 -0.435 -0.427 250 -0.868 -0.753 -0.833 -0.741 -0.779 -0.769 -0.757 -0.689 -0.679 -0.659 -0.660 -0.653 -0.671 -0.649 -0.638 260 -1.023 -0.924 -1.037 -0.958 -1.005 -1.009 -1.000 -0.944 -0.931 -0.923 -0.922 -0.920 -0.935 -0.916 -0.911 270 -1.142 -1.084 -1.236 -1.169 -1.227 -1.230 -1.220 -1.176 -1.152 -1.170 -1.156 -1.157 -1.167 -1.148 -1.154 280 -1.214 -1.162 -1.323 -1.258 -1.342 -1.331 -1.335 -1.288 -1.267 -1.279 -1.264 -1.263 -1.282 -1.261 -1.265 290 -1.214 -1.165 -1.321 -1.254 -1.351 -1.334 -1.345 -1.295 -1.277 -1.288 -1.273 -1.268 -1.289 -1.269 -1.271 300 -1.117 -1.077 -1.220 -1.153 -1.252 -1.234 -1.241 -1.190 -1.173 -1.182 -1.167 -1.156 -1.172 -1.152 -1.153 310 -0.902 -0.844 -0.999 -0.932 -0.990 -1.005 -0.991 -0.957 -0.932 -0.937 -0.940 -0.928 -0.940 -0.917 -0.929 320 -0.562 -0.494 -0.602 -0.558 -0.608 -0.624 -0.604 -0.574 -0.555 -0.556 -0.537 -0.534 -0.541 -0.525 -0.528 330 -0.001 0.028 -0.059 -0.013 -0.054 -0.053 -0.053 -0.030 -0.016 -0.016 -0.006 -0.006 -0.013 0.000 -0.002 340 0.538 0.552 0.500 0.530 0.493 0.488 0.489 0.500 0.504 0.504 0.504 0.498 0.491 0.501 0.499 350 0.891 0.878 0.871 0.879 0.875 0.881 0.883 0.879 0.885 0.888 0.877 0.879 0.877 0.880 0.874 360 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000