不同设置方式下的防风网抑尘效果对比丛晓春

*2665104。。“”“L”。“П”。COMPARISONOFDUST-PREVENTIONOFWINDBREAKWITHDIFFERENTSETTINGSCHEMESCongXiaochunCaoShiqingChenZhilongYangShuliSunXujieCivilEngineeringandArchitectureCollegeShandongUniversityofScienceandTechnologyQingdao266510ChinaAbstractForthecomparisonofdust-preventingeffectofporouswindbreakswithdifferentsettingschemesanopencoalyardwastakenasaconfirmationexampleonthebasisofmeasurementdataandfourschemesoftheporouswindbreakswereproposedaccordingtotheactualconditionsofstockpiles．Thefrictionvelocitiesabovethepileswereobtainedrespectivelyandtherateofdustemissionofeachschemewascalculated．Itwasfoundthatallenclosurealongtheyardledtothebestoverallprotectiveeffectfromwinderosionwhiletwo－sideprotectionagainstthewindwardofdominantwinddirectionhadtheworsteffect．Moreoverthree－sidewindbreaksinstalledalongthewindwardagainstthedominantwinddirectionweremoreeffectivethanthosealongtheleeward．Keywordsopencoalyardwindbreakdust-preventingeffectschemecomparison*508081152009ZRB01240YCA110206。01。。2。。50%～70%90%3。。、4-6。7-1011。。。11.1k－ε1276201110295DOI:10.13205/j.hjgc.2011.05.0101uixi=012uiujxj+u'iu'jxj=－1ρpxi+v2uix2j2ujm/suiujm2/s2u'iu'jm2/s2pPaρkg/m3vm2/s。porous-jump3Δp=－μav+C2·12ρv()2Δm3ΔpPaμ1.789×10－10N·s/m2am2C2m－1vm/sΔmm。1.2mm3aC2。1.28000m×6000m×200m1。porous-jump。110.65。。SIMPLEδ≤10－5。Grank-Nichson。1.3。ZDR－1F282m2。1m2447。2009324200933050433。ξξ=vv4vm/svm/s。324～28。862011102952SSW10.10%5.20m/sWSW8.67%4。、、、。45。453。。13-14。5.20m/sSSW6。66。0.471m/s0.241m/s。0.2610.2570.2730.250m/s。。4515。η=0u*k≤u*1－A*()A×100%u*k＞u*{596201110295η%A*mAmu*km/su*m/s。ssw5.2m/s1u*160.23m/s0.23m/s0.23m/s30589.04m2118386.24m2η=1－30589.04()118386.24×100%=74.16%。η。1。1/m·s－1/%1/%2/%3/%4/%N3.73.1172.640.110.430.00NNE3.44.5457.8516.4718.303.86NE3.43.8429.8226.774.961.54ENE4.25.439.1840.325.642.25E5.76.0150.7052.6616.4810.18EES5.37.1556.7351.7823.4115.92ES5.23.9779.9374.3879.3061.30SSE5.15.8171.2172.0374.5969.84S5.06.6614.132.3410.057.94SSW5.210.174.1672.8074.9468.36WS4.77.5248.8845.7762.6143.59WWS4.68.6710.827.2845.013.71W3.94.330.000.0029.120.00WNW4.66.8710.706.3143.485.29NW4.97.6576.3266.2171.1460.76NNW4.45.8690.0561.6059.0369.84E6E=Σ16i=1ηi×pi6ηipi。E。147.46%238.65%341.48%428.73%。。413。413。424。“”“П”。5。“”。“П”。1．J．2006425636－640.2．J．2008637－39.3．J．200720267－71.7907201110295、、。、、、SO2NOx。1．J．2008274-81.2．J．20067111-7.3MatsuiMKashimaYKawanaMetal．Dioxin-likepotenciesandextractableorganohalogensEOXinmedicalmunicipalanddomesticwasteincineratorashesinJapanJ．Chemosphere200353971-980.4DorisSchuerJohannesJager．FormationofchlorinatedandbrominateddioxinsandotherorganohalogencompoundsatthepilotincinerationplantVERONAJ．Chemosphere20045449-59.5．D．2006.6．J．200833125-30.7．J．20[e-mail]2011－01－24櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅704PackwoodAR．FlowthroughporousfencesinthickboundarylayerscomparisonsbetweenlaboratoryandnumericalexperimentsJ．JournalofWindEngineeringandIndustrialAerodynamics20008875－90.5WilsonJDYeeE．CalculationofwindsdisturbedbyanarrayoffencesJ．AgricultureForestMeteorology200311531－50.6WeiLFanWSimonB．SimulatingtheshelteringeffectsofwindbreaksinurbanoutdooropenspaceJ．JournalofWindEngineeringandIndustrialAerodynamics200795533－549.7．J．20032414－6.8．J．20073137－138.9．J．2010405104－107.10．J．201039340－44.11．R．2006.12．J．2009273103－107.13．J．2008333314－317.14StuderBJBAryaSPS．WindbreakeffectivenessforstoragepilefugitivedustcontrolAwindtunnelstudyJ．JournaloftheAirPollutionControlAssociation19883[e-mail]2011－01－1897201110295