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FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 82 <br />---------------------------------------------------------------------------- <br />»»>ADD SUBAREA RUNOFF TO MAINLINE, AT MAINLINE Tc, ««< <br />»»>(AND COMPUTE INITIAL SUBAREA RUNOFF)««< <br />INITIAL SUBAREA FLOW-LENGTH(FEET) = 146.00 <br />ELEVATION DATA: UPSTREAM(FEET) = 154.50 DOWNSTREAM(FEET) = 152.50 <br />Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 <br />SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.264 <br />* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 6.008 <br />SUBAREA Tc AND LOSS RATE DATA(AMC II): <br />DEVELOPMENT TYPE/ SCS SOIL AREA Fp Ap SCS Tc <br />LAND USE GROUP (ACRES) (INCH/HR) (DECIMAL) CN (MIN.) <br />COMMERCIAL B 1.22 0.30 0.100 56 5.26 <br />SUBAREA AVERAGE PERVIOUS LOSS RATE, Fp(INCH/HR) = 0.30 <br />SUBAREA AVERAGE PERVIOUS AREA FRACTION, Ap = 0.100 <br />SUBAREA AREA(ACRES) = 1.22 INITIAL SUBAREA RUNOFF(CFS) = 6.56 <br />** ADD SUBAREA RUNOFF TO MAINLINE AT MAINLINE Tc: <br />MAINLINE Tc(MIN.) = 5.29 <br />* 100 YEAR RAINFALL INTENSITY(INCH/HR) = 5.990 <br />SUBAREA AREA(ACRES) = 1.22 SUBAREA RUNOFF(CFS) = 6.54 <br />EFFECTIVE AREA(ACRES) = 3.20 AREA -AVERAGED Fm(INCH/HR) = 0.03 <br />AREA -AVERAGED Fp(INCH/HR) = 0.30 AREA -AVERAGED Ap = 0.10 <br />TOTAL AREA(ACRES) = 3.2 PEAK FLOW RATE(CFS) = 17.17 <br />++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <br />FLOW PROCESS FROM NODE 130.00 TO NODE 140.00 IS CODE = 41 <br />---------------------------------------------------------------------------- <br />»»>COMPUTE PIPE -FLOW TRAVEL TIME THOU SUBAREA««< <br />»»>USING USER -SPECIFIED PIPESIZE (EXISTING ELEMENT)««< <br />ELEVATION DATA: UPSTREAM(FEET) = 145.20 DOWNSTREAM(FEET) = 143.60 <br />FLOW LENGTH(FEET) = 379.00 MANNING'S N = 0.013 <br />ASSUME FULL -FLOWING PIPELINE <br />PIPE -FLOW VELOCITY(FEET/SEC.) = 5.46 <br />PIPE FLOW VELOCITY = (TOTAL FLOW)/(PIPE CROSS SECTION AREA) <br />GIVEN PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 <br />PIPE-FLOW(CFS) = 17.17 <br />PIPE TRAVEL TIME(MIN.) = 1.16 Tc(MIN.) = 6.45 <br />LONGEST FLOWPATH FROM NODE 120.00 TO NODE 140.00 = 633.00 FEET. <br />+ + <br />DA-A9 <br />+ + <br />++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ <br />FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 82 <br />---------------------------------------------------------------------------- <br />»»>ADD SUBAREA RUNOFF TO MAINLINE, AT MAINLINE Tc, ««< <br />»»>(AND COMPUTE INITIAL SUBAREA RUNOFF)««< <br />INITIAL SUBAREA FLOW-LENGTH(FEET) = 150.00 <br />ELEVATION DATA: UPSTREAM(FEET) = 156.00 DOWNSTREAM(FEET) = 153.20 <br />Tc = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]**0.20 <br />SUBAREA ANALYSIS USED MINIMUM Tc(MIN.) = 5.001 <br />