通风角联网络计算

作业：手算复杂网络（10分）综合训练1：某通风网路图如下图所示，已知总风量为Q=25m3/s，各分支风阻分别为:%=0.487,R2=0.652,R=0.86,R=0.6,R=0.465，单位为Ns2/m8。试用斯考德-恒斯雷法解算该网路的自然分风，并求其总阻力和总风阻。怎W0.01m3/s）■4.*Z^4

5/42Q=25m3/s图1角联通风网路解：因为K=R1R5=0.487X0.465q0.5789v1，所以通风网络图为:R-R40.652x0.6用斯考德-恒斯雷法解算自然分风为:Q=——Q=q13.41m3/s七R1*E0.65225Q=«—°1+\；R21h窝q11.59m3s25♦QQ=41:R1:0.61+41+,R50.465牝11.70m3,s25Q=Q51:R1.'0.4651+51+.,.R\0.984L4机14.30m3..sQ3=Q1-Q4q4.74m3/s回路线路（i）RiQ；2RQ方向RQ2△QQ；'①一1-0.48713.4113.06134--87.5762847-0.23344663613.64344664用回路①一②一③一①和回路①一②一④一③一①根据风压平衡进行修正风量：②—4-0.611.714.04--82.13411.93344664④—50.46514.313.299+95.0878514.06655336③—20.65211.5915.11336+87.581921211.35655336①£55.513712.9594865①—1-0.48713.6434466413.28871702--90.6519507813.30603691②—3-0.862.213.8012--4.2003261.872590278③—20.65211.3565533614.80894559+84.089290410.33740972211.69396309①£31.89886261-10.76298637回路线路⑴RiQi2RiQi方向RiQi2△QQi'①—1-0.48713.3060369112.96007995--86.2236511413.47688148②—4-0.611.9334466414.32013596--85.4442891612.10429121④—50.46514.0665533613.08189463+92.00858445-0.1708445713.89570879③—20.65211.6939630915.24892786+89.1601997811.52311852①£55.611038419.500843929①—1-0.48713.4768814813.12648256--88.4520249113.32090065②—3-0.861.8725902783.220855278--3.015671141.716609443③—20.65211.5231185215.02614655+86.57403375067909935①£31.37348439-4.893662303回路线路（i）RiQi2RiQi方向RiQi2△QQi'①—1-0.48713.3209006512.97455723--86.4163939113.39989404②—4-0.612.1042912114.52514945--87.9083193512.18328459④—50.46513.8957087912.92300918+89.78718615-0.07899338813.81671541③—20.65211.6790993515.22954555+88.9336878111.60010596①£55.652261414.396160696①—1-0.48713.3998940413.05149679--87.4443370113.32781649②—3-0.861.7166094432.952568241--2.5342032611.644531899③—20.65211.6001059615.12653818+87.734722860.07207754411.67218351①£31.13060321-2.243817415回路线路（i）RiQi2RiQi方向RiQi2△QQi'①一1-0.48713.3278164912.98129326--86.5061472313.36431731②—4-0.612.1832845914.61994151--89.059454112.21978541④—50.46513.8167154112.84954533+88.76925545-0.03650081213.78021459③—20.65211.6721835115.22052729+88.8283938311.63568269①£55.67130742.032047951①—1-0.48713.3643173113.01684506--86.9806238113.33102155②—3-0.861.6445318992.828594866--2.3258572431.61123614③—20.65211.6356826915.17293023+88.273700880.03329575911.66897845①£31.01837016-1.032780177回路线路（i）RiQi2RiQi方向RiQi2△QQi'①—1-0.48713.3310215512.98441499--86.5477579713.34788256②—4-0.612.2197854114.66374249--89.59389322-0.01686101112.23664642

④一50.46513.7802145912.81559957+88.3008561313.76335358③一20.65211.6689784515.2163479+88.7796179211.65211744①£55.680104950.938822853①一1-0.48713.3478825613.00083761--86.7668267813.33250411②一3-0.861.611236142.771326161--2.2326304331.595857697③一20.65211.6521174415.19436115+88.523240270.01537844311.66749589①£30.96652492-0.476216943回路线路（i）RiQ；2RQ方向RQ2△QQ；'①一1-0.48713.3325041112.98585901--86.5670093113.34029171②一4-0.612.2366464214.6839757--89.8413093212.24443401④一50.46513.7633535812.79991883+88.08490436-0.00778759613.75556599③一20.65211.6674958915.21441464+88.7570600911.65970829①£55.684168180.433645812①一1-0.48713.3402917112.99344413--86.6681674713.33318931②一3-0.861.5958576972.744875238--2.1902151381.588755293③一20.65211.6597082915.20425961+88.638615910.00710240411.66681069①£30.94257897-0.2197667经过六次修正后，满足了精度eW0.