# Rectangular duct, roughened long base wall # # u1u3/Us^2 x1000 # # X2/B= 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 # X3/B .88 1.609 1.657 1.676 1.726 1.687 1.635 1.609 1.412 1.13 .721 .86 1.635 1.645 1.676 1.689 1.673 1.639 1.557 1.34 1.039 .624 .84 1.604 1.651 1.657 1.699 1.663 1.616 1.52 1.291 .968 .547 .82 1.581 1.578 1.649 1.696 1.634 1.587 1.468 1.222 .883 .513 .8 1.556 1.582 1.61 1.656 1.611 1.559 1.408 1.161 .824 .479 .76 1.518 1.537 1.609 1.62 1.549 1.459 1.316 1.076 .751 .477 .72 1.468 1.479 1.525 1.579 1.491 1.4 1.22 .959 .73 .564 .68 1.415 1.437 1.479 1.481 1.408 1.3 1.136 .886 .703 .605 .64 1.357 1.408 1.417 1.451 1.319 1.187 1.042 .828 .703 .631 .6 1.281 1.357 1.342 1.334 1.249 1.088 .925 .775 .665 .672 .52 1.186 1.193 1.224 1.174 1.015 .898 .742 .676 .624 .64 .44 1.038 1.038 1.014 .966 .802 .651 .551 .533 .54 .482 .36 .852 .858 .774 .708 .532 .414 .308 .365 .409 .327 .28 .637 .652 .524 .45 .256 .142 .081 .167 .269 .146 .2 .368 .398 .232 .16 -.039 -.161 -.192 -.053 .055 -.13 .1 -.067 -.033 -.196 -.333 -.523 -.617 -.637 -.489 -.268 -.293 0 -.458 -.451 -.711 -.811 -.994 -1.077 -1.136 -.951 -.602 -.548 -.1 -1.023 -.941 -1.186 -1.325 -1.56 -1.68 -1.687 -1.511 -.991 -.701 -.2 -1.57 -1.473 -1.719 -1.844 -2.193 -2.346 -2.265 -2.055 -1.453 -.929 -.28 -1.995 -1.99 -2.155 -2.369 -2.591 -2.731 -2.799 -2.49 -1.827 -1.187 -.36 -2.44 -2.4 -2.715 -2.692 -3.064 -3.148 -3.172 -2.997 -2.295 -1.302 -.44 -3.048 -2.933 -3.18 -3.148 -3.435 -3.585 -3.611 -3.43 -2.676 -1.56 -.52 -3.596 -3.416 -3.599 -3.605 -3.827 -3.979 -3.976 -3.741 -3.114 -1.82 -.6 -3.982 -3.78 -4.056 -4.01 -4.309 -4.346 -4.278 -4.002 -3.471 -2.134 -.64 -4.303 -4.133 -4.32 -4.266 -4.423 -4.527 -4.418 -4.188 -3.677 -2.258 -.68 -4.501 -4.451 -4.655 -4.557 -4.699 -4.675 -4.512 -4.31 -3.902 -2.538 -.72 -4.723 -4.584 -4.762 -4.808 -4.838 -4.753 -4.654 -4.541 -4.156 -2.751 -.76 -4.974 -4.87 -5.023 -4.83 -5.018 -4.908 -4.803 -4.618 -4.247 -2.93 -.8 -5.175 -5.085 -5.176 -5.102 -5.104 -5.116 -4.924 -4.626 -4.338 -3.245 -.82 -5.325 -5.165 -5.455 -5.308 -5.331 -5.26 -5.036 -4.772 -4.396 -3.377 -.84 -5.474 -5.299 -5.466 -5.331 -5.388 -5.185 -5.061 -4.86 -4.495 -3.46 -.86 -5.642 -5.488 -5.649 -5.531 -5.606 -5.298 -5.132 -4.805 -4.533 -3.58 -.88 -5.636 -5.595 -5.668 -5.596 -5.656 -5.302 -5.098 -4.772 -4.51 -3.704 # Us (m/sec) 17.01 17.01 16.91 16.85 16.67 16.42 17.12 17.33 17.18 17.19 # Ub (m/sec) 14.03 14.02 13.80 13.79 13.77 13.73 14.22 14.20 14.21 14.21