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<br />R = R + (T + B) <br />d 0 4 <br /> <br />e <br /> <br />where: l\, = mean radius of the center line of the <br />channel, ft. <br /> <br />T = top width of the channel, ft. <br /> <br />;:: <br /> <br />B = bottom width of the channel, ft. <br /> <br />, <br /> <br />For channels with no defined bottom width, such as triangular or <br />parabolic channels, set B equal to zero. <br /> <br /> <br /> <br />e <br /> <br />",'" <br /> <br />" <br />0:: <br /> <br />/ <br />/ <br />/ <br />V <br />/ <br /> <br />~ <br /> <br />Figure 2. DEFINITION SKETCH FOR FLOW IN BENDS <br /> <br />e <br /> <br />12 <br />