# Mahon & Meskell Triangular Tube Array, Surface Pressure Coefficients # # Pitch ratio = 1.97 # # Tube displacement: y/d= 2 % # #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 0.869 0.858 0.862 0.874 0.858 0.861 0.866 0.866 0.869 0.869 0.876 0.879 0.884 0.895 0.892 20 0.553 0.553 0.515 0.527 0.497 0.490 0.490 0.493 0.495 0.493 0.507 0.508 0.511 0.520 0.512 30 0.002 0.014 -0.053 -0.029 -0.059 -0.068 -0.063 -0.047 -0.037 -0.045 -0.024 -0.026 -0.020 -0.013 -0.022 40 -0.525 -0.501 -0.601 -0.571 -0.615 -0.639 -0.635 -0.605 -0.586 -0.605 -0.579 -0.584 -0.576 -0.565 -0.573 50 -0.908 -0.851 -0.976 -0.943 -0.996 -1.028 -1.022 -0.988 -0.965 -0.990 -0.961 -0.969 -0.959 -0.937 -0.942 60 -1.186 -1.112 -1.265 -1.226 -1.296 -1.317 -1.303 -1.277 -1.237 -1.275 -1.235 -1.226 -1.227 -1.223 -1.231 70 -1.226 -1.153 -1.312 -1.284 -1.364 -1.396 -1.389 -1.366 -1.330 -1.375 -1.339 -1.329 -1.334 -1.334 -1.339 80 -1.211 -1.140 -1.290 -1.254 -1.345 -1.378 -1.375 -1.334 -1.313 -1.342 -1.325 -1.310 -1.308 -1.295 -1.317 90 -1.083 -1.014 -1.139 -1.118 -1.200 -1.233 -1.236 -1.211 -1.182 -1.224 -1.201 -1.190 -1.195 -1.202 -1.199 100 -1.001 -0.915 -1.003 -0.954 -0.999 -1.013 -0.995 -0.968 -0.936 -0.964 -0.943 -0.963 -0.975 -0.982 -0.985 110 -0.791 -0.694 -0.779 -0.674 -0.725 -0.757 -0.715 -0.691 -0.646 -0.672 -0.654 -0.688 -0.721 -0.727 -0.742 120 -0.649 -0.539 -0.599 -0.494 -0.527 -0.546 -0.501 -0.474 -0.432 -0.450 -0.430 -0.458 -0.487 -0.490 -0.502 130 -0.513 -0.407 -0.455 -0.371 -0.400 -0.413 -0.377 -0.351 -0.318 -0.331 -0.313 -0.332 -0.353 -0.353 -0.363 140 -0.475 -0.380 -0.398 -0.343 -0.362 -0.358 -0.329 -0.298 -0.268 -0.277 -0.271 -0.279 -0.282 -0.288 -0.288 150 -0.385 -0.297 -0.341 -0.273 -0.297 -0.304 -0.279 -0.249 -0.223 -0.232 -0.216 -0.221 -0.228 -0.225 -0.232 160 -0.338 -0.263 -0.286 -0.222 -0.243 -0.252 -0.231 -0.198 -0.177 -0.189 -0.176 -0.174 -0.176 -0.178 -0.187 170 -0.324 -0.242 -0.274 -0.215 -0.236 -0.240 -0.218 -0.188 -0.164 -0.171 -0.156 -0.158 -0.160 -0.158 -0.163 180 -0.323 -0.243 -0.276 -0.216 -0.233 -0.235 -0.210 -0.181 -0.158 -0.164 -0.146 -0.144 -0.142 -0.141 -0.146 190 -0.363 -0.244 -0.275 -0.236 -0.281 -0.249 -0.250 -0.191 -0.176 -0.174 -0.165 -0.167 -0.156 -0.163 -0.162 200 -0.384 -0.301 -0.339 -0.276 -0.295 -0.289 -0.263 -0.228 -0.208 -0.210 -0.193 -0.184 -0.178 -0.182 -0.184 210 -0.452 -0.352 -0.391 -0.327 -0.344 -0.334 -0.305 -0.268 -0.249 -0.250 -0.232 -0.221 -0.212 -0.217 -0.220 220 -0.468 -0.387 -0.414 -0.359 -0.371 -0.371 -0.346 -0.306 -0.282 -0.287 -0.262 -0.254 -0.246 -0.245 -0.249 230 -0.554 -0.470 -0.504 -0.448 -0.457 -0.458 -0.428 -0.380 -0.358 -0.362 -0.330 -0.317 -0.303 -0.304 -0.307 240 -0.694 -0.575 -0.642 -0.580 -0.617 -0.587 -0.554 -0.510 -0.501 -0.491 -0.478 -0.427 -0.389 -0.411 -0.412 250 -0.853 -0.732 -0.822 -0.763 -0.817 -0.791 -0.761 -0.715 -0.712 -0.700 -0.693 -0.629 -0.579 -0.611 -0.612 260 -1.002 -0.899 -1.025 -0.975 -1.043 -1.030 -1.010 -0.967 -0.953 -0.956 -0.949 -0.901 -0.857 -0.889 -0.892 270 -1.134 -1.060 -1.210 -1.165 -1.230 -1.249 -1.225 -1.190 -1.155 -1.181 -1.164 -1.155 -1.168 -1.159 -1.165 280 -1.224 -1.150 -1.310 -1.275 -1.337 -1.363 -1.331 -1.298 -1.264 -1.281 -1.283 -1.291 -1.300 -1.285 -1.306 290 -1.264 -1.188 -1.330 -1.293 -1.343 -1.371 -1.335 -1.304 -1.274 -1.283 -1.295 -1.309 -1.315 -1.299 -1.324 300 -1.186 -1.115 -1.237 -1.199 -1.244 -1.270 -1.230 -1.197 -1.167 -1.172 -1.182 -1.195 -1.198 -1.182 -1.204 310 -0.946 -0.891 -0.992 -0.950 -1.019 -1.033 -1.002 -0.955 -0.918 -0.950 -0.937 -0.934 -0.946 -0.946 -0.949 320 -0.541 -0.493 -0.586 -0.548 -0.596 -0.610 -0.588 -0.554 -0.534 -0.549 -0.519 -0.535 -0.537 -0.528 -0.531 330 0.018 0.020 -0.027 0.003 -0.030 -0.048 -0.033 -0.011 0.001 -0.007 0.007 0.006 0.005 0.002 0.000 340 0.529 0.521 0.510 0.535 0.508 0.493 0.496 0.511 0.519 0.507 0.510 0.508 0.509 0.502 0.498 350 0.839 0.841 0.837 0.857 0.850 0.862 0.860 0.866 0.856 0.859 0.854 0.846 0.841 0.840 0.841 360 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