# Rectangular duct, roughened long base wall # # RMSu3/Us # # X3/B= 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 # X2/B 0 .0442 .0423 .0419 .043 .0491 .0577 .0666 .0751 .0814 .08 .0443 .0425 .0418 .0434 .0493 .0579 .0667 .0755 .0815 .16 .0443 .0424 .0421 .0435 .049 .058 .067 .075 .0815 .24 .0444 .0426 .0421 .0433 .0491 .058 .0668 .0757 .0818 .32 .0447 .0429 .0422 .0436 .0495 .0584 .0669 .0754 .0813 .4 .0449 .0429 .0423 .0439 .0498 .0583 .0677 .0757 .0812 .48 .0451 .043 .0423 .044 .0505 .059 .068 .0759 .081 .56 .0453 .0433 .0424 .0443 .0505 .0597 .0685 .0759 .081 .64 .0455 .0431 .0424 .0449 .0512 .0603 .0689 .0763 .0809 .72 .0454 .0429 .0424 .0443 .0517 .061 .0691 .0764 .0803 .8 .0452 .0427 .0423 .0449 .0521 .0615 .0698 .0764 .0802 .88 .0453 .0427 .0421 .045 .0527 .0618 .0704 .0769 .0798 .96 .0448 .042 .0418 .045 .0528 .0626 .0706 .0768 .0796 1.04 .0445 .0417 .0418 .0452 .053 .0625 .0708 .0771 .0796 1.12 .044 .0415 .0418 .045 .053 .0626 .0709 .0769 .0791 1.2 .0432 .0417 .0425 .0456 .0532 .0629 .0705 .0769 .0785 1.28 .0428 .0426 .0439 .0467 .0529 .0626 .0704 .0762 .0779 1.36 .0427 .0439 .0458 .0477 .0537 .0622 .0697 .0757 .0773 1.44 .0427 .046 .0478 .0493 .0541 .0618 .0688 .0742 .0767 1.52 .0434 .0483 .0505 .0513 .0554 .0612 .0669 .0727 .0752 1.6 .0445 .0514 .0537 .0542 .0569 .0613 .0664 .0706 .0738 1.64 .0453 .053 .0551 .0559 .0579 .0614 .0653 .0698 .073 1.68 .0466 .0543 .0566 .0573 .0589 .0621 .0651 .0689 .0718 1.72 .0473 .0557 .0581 .0589 .0605 .0628 .0654 .0679 .071 1.76 .0488 .0572 .0594 .0605 .0621 .0639 .0657 .0675 .0698 1.8 .0497 .0583 .061 .0619 .0636 .0651 .0664 .0672 .0688 1.82 .0505 .0592 .0616 .0628 .0647 .0664 .067 .0675 .0683 1.84 .0511 .0601 .0627 .064 .0653 .0665 .0673 .0675 .0675 1.86 .0517 .0612 .0634 .065 .0665 .0676 .0681 .0677 .0673 1.88 .0524 .0619 .0643 .0661 .0678 .0683 .0686 .0683 .0669 1.9 .0535 .0629 .0655 .0671 .0688 .0693 .0693 .0689 .0667 1.91 .054 .063 .0661 .0676 .0694 .0702 .0698 .0687 .0661 1.92 .0543 .0636 .0666 .0687 .0705 .0705 .0709 .0695 .0664 # Us (m/sec) 17.26 17.36 17.16 16.93 17.20 17.16 17.59 17.68 17.71 # Ub (m/sec) 14.14 14.16 14.18 14.03 14.05 14.16 14.31 14.31 14.30