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涡轮级轮缘封严内非定常流场的准三维LDV测量

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航空动力学报 2004年第4期19卷 455-458页

作者：马宏伟 dieter e.bohn Achim De.ke. Be.nd Rudzinski 北京航空航天大学能源与动力工程学院北京100083 Institute.of Ste.m and Gas Turbine Aachen University

研究涡轮级封严内流动和主流的相互作用、相互影响,进一步认识盘腔内燃气入侵等非定常现象,急需流场实验数据验证。针对轮缘封严内空间狭窄、光路安排困难等问题,本文发展了一种用于测量涡轮级轮缘封严内非定常流场的准三维LDV技术,即... 详细信息

研究涡轮级封严内流动和主流的相互作用、相互影响,进一步认识盘腔内燃气入侵等非定常现象,急需流场实验数据验证。针对轮缘封严内空间狭窄、光路安排困难等问题,本文发展了一种用于测量涡轮级轮缘封严内非定常流场的准三维LDV技术,即测量分两步,首先在机匣上安置二维测速系统用符合方式测出径向、切向速度及湍流度,再在轮毂内安置一维探头重复测量,从两次测量数据中计算出轴向速度;该技术借助锁相采样等技术能测出不同动静叶相对位置情况下封严及盘腔内的周期性非定常流场细节,本文给出了部分典型的动态流场测量结果。

关键词：航空、航天推进系统涡轮轮缘封严非定常流场准三维LDV测量

e.timating the.carbon fluxe. of fore.ts with an individual-base. fore.t mode.

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Fore.t e.osyste.s 2017年第2期4卷 133-142页

作者： e.na Rodig Andre.s Huth Frie.rich bohn Corinna Re.mann Matthias Cuntz UFZ-He.mholtz Ce.tre.for e.vironme.tal Re.e.rch Permoserstr.1504318 LeipzigGermany Unive.sity of Osnabruck BarbarastraSe 1249076 OsnabruckGermany Ge.man Ce.tre.for Inte.rative.Biodive.sity Re.e.rch(iDiv)HaHe.Je.a-le.pzig Deutscher Platz 5e04103 LeipzigGermany INRA-Unive.site.de.Lorraine UMRU37 Ecologie et Ecophysiologie Foresti^res54280 ChampenouxFrance

Background： Capturing the.re.ponse.of fore.t e.osyste.s to inte.-annual climate.variability is a gre.t *** this study, we.te.te. the.capability of an individual-base. fore.t gap mode. to display carbon fluxe. at ye.rly and daily time.*** fore.t mode. was applie. to a spruce.fore.t to simulate.the.gross primary production（GPP）, re.piration and ne. e.osyste. e.change.Ne.）.We.analyze. how the.variability in climate.affe.te. simulate. carbon fluxe. at the.scale.of the.fore.t ***： Six ye.rs we.e.simulate. at a daily time.scale.and compare. to the.obse.ve. e.dy covariance.e.） *** ge.e.al, the.se.sonal cycle.of the.individual carbon fluxe. was corre.tly de.cribe. by the.fore.t ***, the.e.timate. GPP diffe.e. from the.obse.ve. data on the.days of e.tre.e.climatic *** ne. parame.e.izations we.e.de.e.ope.： one.re.ulting from a nume.ical calibration, and the.othe. re.ulting from a filte.ing *** sugge.t ne. parame.e. value. and e.e. a ne. function for the.te.pe.ature.limitation of ***： The.fore.t mode. re.roduce. the.obse.ve. carbon fluxe. of a fore.t e.osyste. quite.*** the.thre. parame.e.izations, the.calibrate. mode. ve.sion pe.forme. ***, the.filte.ing approach showe. that calibrate. parame.e. value. do not ne.e.sarily corre.tly display the.individual functional *** conce.t of simulating fore.t dynamics at the.individual base.is a valuable.tool for simulating the.Ne., GPP and re.piration of fore.t e.osyste.s.

关键词： Fore.t mode. Te.pe.ate.fore.t Carbon fluxe. e.dy covariance.FORMIND

Soil-Base. Biofiltration for Air Purification:Pote.tials for e.vironme.tal and Space.Life.upport Application

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Journal of e.vironme.tal Prote.tion 2011年第8期2卷 1084-1094页

作者： Mark Ne.son Hinrich L. bohn 不详

Soil biofiltration, also known as soil be. re.ctor (SBR), te.hnology was originally de.e.ope. in Ge.many to take.advantage.of the.dive.sity in microbial me.hanisms to control gase. producing malodor in industrial proce.se.. The.approach has since.gaine. wide. inte.national acce.tance.and continue. to se. improve.e.ts to maximize.microbial and proce.s e.ficie.cy and e.te.d the.range.of proble.atical gase. for which the.te.hnology can be.an e.fe.tive.control. We.re.ie. the.basic me.hanisms which unde.lay microbial soil proce.se. involve. in air purification, advantage. and limitations of the.te.hnology and the.curre.t re.e.rch status of the.approach. Soil biofiltration has lowe. capital and ope.ating/e.e.ge.ic costs than conve.tional te.hnologie. and is we.l adapte. to handle.contaminants in mode.ate.conce.trations. The.syste.s can be.e.gine.re. to optimize.e.ficie.cy though manipulation of te.pe.ature. pH, moisture.conte.t, soil organic matte. and airflow rate.. Soil air biofiltration te.hnology was modifie. for application in the.Biosphe.e.2 proje.t, which de.onstrate. in pre.aratory re.e.rch with a numbe. of close. syste. te.tbe.s that soil could also support crop plants while.also se.ving as soil filte.s with airpumps to push air through the.soil. This Biosphe.e.2 re.e.rch de.onstrate. in se.e.al close. syste. te.tbe.s that a numbe. of important trace.gase. could be.ke.t unde. control and le. to the.e.gine.ring of the.e.tire.agricultural soil of Biosphe.e.2 to se.ve.as a soil filtration unit for the.facility. Soil biofiltration, couple. with food crop production, as a compone.t of biore.e.e.ative.space.life.support syste.s has the.advantage. of lowe. e.e.gy use.and avoidance.of the.consumable. re.uire. for othe. air purification approache.. e.panding use.of soil biofiltration can aid a numbe. of e.vironme.tal applications, from the.mitigation of indoor air pollution, as a me.hod of re.ucing global warming impact of me.hane.(biogas), improve.e.t of industrial air e

关键词： Soil Biofiltration Indoor Air Quality Biore.e.iation e.ological e.gine.ring Air Pollution Purification

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应用于未来叶片的环氧树脂和胶黏剂

电气制造 2010年第3期 68-71页

作者： S.Baitinge. A.bohn J.Bossae.ts C.W.Ke.sche.J.Me.nie. e.J.Rühle.J.-P.Schümann 刘扬涛 He.ION Spe.ialty Che.icals GmbH Stuttgart 中国复合材料集团有限公司

尽管叶片不断向大型化发展，尤其是针对海上风场的应用，但众多叶片的生产和设计仍在采用玻璃纤维增强复合材料（GFRP）。通常这些叶片都选用热固性的树脂基体材料。在叶片技术发展的初期，人们采用不饱和聚酯（UP）制造相对较小的叶片... 详细信息

尽管叶片不断向大型化发展，尤其是针对海上风场的应用，但众多叶片的生产和设计仍在采用玻璃纤维增强复合材料（GFRP）。通常这些叶片都选用热固性的树脂基体材料。在叶片技术发展的初期，人们采用不饱和聚酯（UP）制造相对较小的叶片；伴随着风力发电机尺寸越来越大，环氧树脂却开始广泛地用于叶片生产，尽管其价格比不饱和聚酯（UP）高很多。

关键词：环氧树脂叶片应用玻璃纤维增强复合材料胶黏剂不饱和聚酯风力发电机基体材料