{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"本文将自然单元运用于二维半透明介质辐射与导热耦合问题的求解.自然单元是基于自然邻近插值的无网格,相对于其他无网格,具有插值特性和支持域各向异性等特点.自然单元采用自然邻近插值构造形函数,自然邻近插值包括Sibson插值和Laplace插值.本文介绍了Laplace插值的定义及其性质,对其收敛特性进行了研究.运用伽辽金加权余量离散热辐射传递方程和能量方程,求解了方形区域和圆环区域辐射与导热耦合换热问题,通过与文献结果的对比验证了自然单元求解的有效性.","authors":[{"authorName":"张勇","id":"0129c082-ac91-452f-919b-7233b0805569","originalAuthorName":"张勇"},{"authorName":"易红亮","id":"a65326b5-2195-472d-bab2-abaa263d9831","originalAuthorName":"易红亮"},{"authorName":"谈和平","id":"2ce2f7d7-7b7b-4914-9272-76568c01a02b","originalAuthorName":"谈和平"}],"doi":"","fpage":"918","id":"b3a2b396-9586-4689-ae56-158d41da2eb7","issue":"5","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"2b55312a-5496-47d6-972d-f472dcd5442e","keyword":"热辐射","originalKeyword":"热辐射"},{"id":"6cb6f44f-bb43-4fde-982a-e4ad9e236086","keyword":"导热","originalKeyword":"导热"},{"id":"b89204e1-2e59-4347-a04e-7274b68c0203","keyword":"自然单元","originalKeyword":"自然单元法"},{"id":"337f6c67-c624-4ab4-8f4f-868ff75eaf40","keyword":"Laplace插值","originalKeyword":"Laplace插值"}],"language":"zh","publisherId":"gcrwlxb201305028","title":"求解辐射导热耦合换热的自然单元","volume":"34","year":"2013"},{"abstractinfo":"从动力学角度,采用离散单元研究炉料颗粒的受力和运动,建立高炉无钟炉顶布料数值计算模型,模拟无钟炉顶布料过程和料面形状.模拟与实测对比表明,两者基本吻合,证明离散单元在高炉无钟布料应用中可行,并为高炉无钟炉顶布料的机理研究开辟了一条新的途径.","authors":[{"authorName":"林成城","id":"028ddcae-af9a-439f-9cfa-21a3f9b32313","originalAuthorName":"林成城"},{"authorName":"杜鹤桂","id":"324c03df-e3f7-4648-b410-6daf921a1cdc","originalAuthorName":"杜鹤桂"}],"doi":"","fpage":"0","id":"72cbbc8b-bde6-4522-8fb9-62550f00472a","issue":"3","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"a6f6a124-3904-4d51-aa8d-aeb3659e5f39","keyword":"离散单元","originalKeyword":"离散单元法"},{"id":"fd6036eb-33fa-48fc-b97d-e896ebbb340c","keyword":"无钟炉顶","originalKeyword":"无钟炉顶"},{"id":"4ef436f1-2114-4928-9c33-dc75772b5dda","keyword":"布料","originalKeyword":"布料"},{"id":"b9239681-25ae-41fe-b04c-7d665c8a8139","keyword":"料面形状","originalKeyword":"料面形状"},{"id":"44900c0d-e5ec-40aa-b524-2dfca4fe2547","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gt199803002","title":"离散单元高炉无钟炉顶布料模拟研究","volume":"33","year":"1998"},{"abstractinfo":"夜长坪钼矿矿岩破碎、节理裂隙发育、可崩性较好,设计采用自然崩落采矿进行开采.详述了自然崩落采矿设计矿块构成要素、采准切割、回采出矿工艺过程,针对自然崩落采矿存在的底部结构容易受到破坏、维护困难、生产组织复杂等问题,提出了抬高底部结构高度、加强底部结构支护、合理安排回采推进方向、编制合理的出矿组织计划等措施,消除或减小地压活动对底部结构的破坏,以达到既发挥自然崩落采矿产量大、成本低的优势,又能保证持续稳定生产的目的,从而大大提高作业效率、降低投资和成本、提高企业综合效益.","authors":[{"authorName":"郭海龙","id":"9dc9c85e-ecf1-425f-a623-f908f46a11b3","originalAuthorName":"郭海龙"},{"authorName":"杨平","id":"3c950c61-9424-4d1a-ba03-022ca2066cb6","originalAuthorName":"杨平"}],"doi":"10.11792/hj20150608","fpage":"33","id":"94c6e345-0cc5-4b72-97a4-86525c8cc8a3","issue":"6","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"bebaa624-66fe-4516-b3e1-ed4e9730ff92","keyword":"自然崩落采矿","originalKeyword":"自然崩落采矿法"},{"id":"b78b93d0-593d-4818-b70d-69806c2a3482","keyword":"复合底部结构","originalKeyword":"复合底部结构"},{"id":"f8d3cc84-6d87-4539-b922-d546a1e3a6d3","keyword":"回采推进","originalKeyword":"回采推进"},{"id":"006a1904-0c65-4fca-bb64-563e8ef85e47","keyword":"割帮助崩","originalKeyword":"割帮助崩"}],"language":"zh","publisherId":"huangj201506008","title":"夜长坪钼矿自然崩落采矿设计实践","volume":"36","year":"2015"},{"abstractinfo":"将离散单元应用于粉末高速压制流动过程研究,以模拟粉体流动的非连续特性.将粉末视为粘弹性的离散颗粒,推导了力与位移表达的粉末高速压制粘弹性本构关系,建立了粉末高速压制成形颗粒流动的离散单元控制方程;并给出了该模型的动态松弛求解过程.基于离散单元求解器PFC软件,对粉末高速压制成形过程颗粒流动情况及密度分布进行了模拟,模拟结果与实验结果较吻合.分析了阻尼系数变化对求解过程的敛散性和压坯密度分布的影响.","authors":[{"authorName":"郑洲顺","id":"7ed3d7d5-b161-4324-a2be-e0f92fcd61d8","originalAuthorName":"郑洲顺"},{"authorName":"王爽","id":"e1837886-6354-4b0c-8085-7ec0356411dd","originalAuthorName":"王爽"},{"authorName":"郑珊","id":"9e34dd1e-0592-4776-8fe2-56cd64705b80","originalAuthorName":"郑珊"},{"authorName":"曲选辉","id":"c567a594-dcab-433c-bf04-043c51ad3e89","originalAuthorName":"曲选辉"}],"doi":"","fpage":"2132","id":"1cf59528-ea2f-4eea-bb20-321fde2e3fb6","issue":"12","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"9e450dff-3df5-4748-b727-d579cbbb1cac","keyword":"高速压制成型","originalKeyword":"高速压制成型"},{"id":"da11f3b6-b9ec-4340-a8eb-d13b54bb51c0","keyword":"离散单元","originalKeyword":"离散单元法"},{"id":"8877a5af-168b-4b58-b554-7adac79dd9d7","keyword":"接触力","originalKeyword":"接触力"},{"id":"92bea3a8-cf01-4665-8d35-ad7f571fe4e7","keyword":"粘弹性模型","originalKeyword":"粘弹性模型"}],"language":"zh","publisherId":"xyjsclygc201012014","title":"基于离散单元的粉末高速压制流动过程模拟","volume":"39","year":"2010"},{"abstractinfo":"自然崩落采矿具有生产能力大、作业安全、开采成本低、便于组织管理等优点,深受国内外采矿工作者青睐.根据夜长坪钼矿床赋存特点,经前期矿岩可崩性研究论证推荐采用自然崩落采矿.详细介绍了夜长坪钼矿的自然崩落采矿小型工业试验,试验结果表明:自然崩落采矿适用于该矿床厚大矿体的开采,是一种安全、高效、低成本的采矿方法,统计得到的各项经济技术指标较优,可作为今后自然崩落采矿大规模生产的参考,并且今后可更多考虑生产管理自动化系统建设问题.","authors":[{"authorName":"郭鸿德","id":"5f5695b6-9f7a-417a-9c85-4404aaf95c70","originalAuthorName":"郭鸿德"},{"authorName":"朱先艳","id":"1826b847-03cc-466c-99f5-5b95d692fd47","originalAuthorName":"朱先艳"},{"authorName":"郭楠","id":"5d661363-88ea-4a63-9f58-1956c482218d","originalAuthorName":"郭楠"},{"authorName":"唐细卓","id":"da133950-2a65-4de6-b4ec-feb9838bb523","originalAuthorName":"唐细卓"}],"doi":"10.11792/hj20160508","fpage":"36","id":"a372e33e-d52b-480f-8058-1f2e8611daf1","issue":"5","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"c53153c2-895b-46d6-b56f-e4e38c49065c","keyword":"自然崩落采矿","originalKeyword":"自然崩落采矿法"},{"id":"60a4b60d-0483-4202-aded-dfac7e438c4f","keyword":"厚大矿体","originalKeyword":"厚大矿体"},{"id":"97e427c5-a328-4af1-9352-2ebf0b75331a","keyword":"小型工业试验","originalKeyword":"小型工业试验"},{"id":"17c1b513-ed4c-4530-8d4d-ed79f1e2dbba","keyword":"安全高效","originalKeyword":"安全高效"},{"id":"05be67f4-2174-46b5-b18a-c359ba0c3296","keyword":"低成本","originalKeyword":"低成本"}],"language":"zh","publisherId":"huangj201605010","title":"夜长坪钼矿自然崩落采矿小型工业试验研究","volume":"37","year":"2016"},{"abstractinfo":"建立了测量微细丝表面空气自然对流换热系数3ω模型。利用3ω测量了直径为10.6μm水平和垂直方向铂丝表面室温下的空气换热系数。水平和垂直铂丝产生的三次谐波比较接近,结果说明,微尺度下空气的自然对流换热以导热为主,自然对流作用可以忽略。基于3ω线原理,引入形状因子并提出了微尺度下铂丝表面换热系数的理论计算模型。空气自然对流换热系数远大于大尺度下的值,主要原因是铂丝的面积体积比值大。","authors":[{"authorName":"王照亮","id":"7d315f46-e168-4b56-a1b5-196f913c73b0","originalAuthorName":"王照亮"},{"authorName":"梁金国","id":"7ae3a7ad-b8ea-483d-9d1e-a4a34acd462b","originalAuthorName":"梁金国"},{"authorName":"唐大伟","id":"a9c4e7b8-6e27-4cb9-b9be-af47b6bd1dfe","originalAuthorName":"唐大伟"}],"doi":"","fpage":"670","id":"9d9d7878-9cac-4276-a6c0-8f6d55516cf1","issue":"4","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"ed2fcc8a-8dae-45c5-99b7-ace791081f39","keyword":"3ω","originalKeyword":"3ω法"},{"id":"6864160c-076c-4b21-be11-83a2e2054dd1","keyword":"自然对流换热","originalKeyword":"自然对流换热"},{"id":"9667d5df-a82d-457c-982d-05a10bd538e0","keyword":"导热","originalKeyword":"导热"},{"id":"5cfbb559-f551-47d0-aa03-2e18c5c567d8","keyword":"微细丝","originalKeyword":"微细丝"}],"language":"zh","publisherId":"gcrwlxb201204031","title":"3ω研究微尺度下铂丝自然对流换热","volume":"33","year":"2012"},{"abstractinfo":"为了探寻模拟旋流喷嘴外部流动的新方法,对传统用于研究固体颗粒问题的离散单元进行改进,并对海水淡化旋流喷嘴外部流场进行了模拟,研究了旋流喷嘴结构对其喷淋效果的影响.结果表明:用离散单元来研究海水淡化喷嘴的喷淋特性具有一定可行性;切向旋流喷嘴中部宽度、出口宽度和中部折角对喷淋范围影响较大;在本文计算范围内中部高度、上部高度和入口高度对喷淋范围影响可以忽略.","authors":[{"authorName":"程璨","id":"0c151343-a375-458a-8554-b61710d460ca","originalAuthorName":"程璨"},{"authorName":"李会雄","id":"c81eb08e-9a28-4274-b730-0a786e9ba149","originalAuthorName":"李会雄"},{"authorName":"冯永昌","id":"a2f21595-111e-4b6a-840e-6de757733733","originalAuthorName":"冯永昌"},{"authorName":"冯渊","id":"3e9c84ff-1cec-4112-82c1-3db4efa64c09","originalAuthorName":"冯渊"}],"doi":"","fpage":"2183","id":"bb14ccf9-1fa6-4f11-94ca-95751110ee0b","issue":"10","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"f36d7dc4-dafd-429f-8f3d-8b48c05356e1","keyword":"离散单元","originalKeyword":"离散单元法"},{"id":"fa93cebe-7d37-4cf6-aee4-de37e13ec4f6","keyword":"海水淡化喷嘴","originalKeyword":"海水淡化喷嘴"},{"id":"c40fbef3-825f-450c-8997-be6322e4e029","keyword":"结构参数","originalKeyword":"结构参数"},{"id":"0b8cc7d6-acc1-422c-befd-62ab083d5a3b","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gcrwlxb201510023","title":"离散单元在旋流喷嘴数值模拟中的应用研究","volume":"36","year":"2015"},{"abstractinfo":"为正确评价长水口的抗热震性能,采用有限单元对遭受热冲击试样的热应力进行了分析。首先研究材料物性参数和温差对普通及复合长水口热应力的影响,然后建立其热震断裂数学模型,最后对结果进行分析和验证。结果表明:有限单元是评价长水口抗热震断裂性能的一种有效理论方法,它可以综合考虑其材质、结构和使用条件;普通长水口和复合长水口材质的抗热震性能可分别用第一和第二热应力断裂抵抗因子评价。","authors":[{"authorName":"刘辉敏","id":"85de695b-f13b-4dd7-a1d5-91a0fd528451","originalAuthorName":"刘辉敏"}],"doi":"10.3969/j.issn.1001-1935.2015.03.007","fpage":"186","id":"bd61840d-1ca1-4b2a-9287-913bdb7dd40c","issue":"3","journal":{"abbrevTitle":"NHCL","coverImgSrc":"journal/img/cover/NHCL.jpg","id":"55","issnPpub":"1001-1935","publisherId":"NHCL","title":"耐火材料 "},"keywords":[{"id":"c82edffe-da3e-4a58-a5de-4df28cdf71c0","keyword":"有限单元","originalKeyword":"有限单元法"},{"id":"253fe3bb-3f99-496b-8753-0ab79942f2dc","keyword":"长水口","originalKeyword":"长水口"},{"id":"76487911-a755-49c6-9793-86daa2e20847","keyword":"抗热震性能","originalKeyword":"抗热震性能"},{"id":"248c88b6-620c-4017-a31f-5b863cb51719","keyword":"热应力","originalKeyword":"热应力"}],"language":"zh","publisherId":"nhcl201503008","title":"基于有限单元评价长水口的抗热震性能","volume":"","year":"2015"},{"abstractinfo":"利用有限单元对影响金属薄膜沉积初期的因素进行了计算机模拟.按膜料为Pt、Pt-Ru、Pt-Ti、Pt-Ni、Pt-Al等五种模式,采用刚性球入射到C或Si基底,重点研究了沉积原子的半径差异比、沉积原子能量和原子入射角等参数对薄膜沉积的影响,同时检验了有限元方法在微观领域中的合理性和适用性.","authors":[{"authorName":"宋鹏","id":"9f772abe-68a8-40fd-86f2-e80aa49ec75b","originalAuthorName":"宋鹏"},{"authorName":"陆建生","id":"6d3845c7-7619-4a5f-b949-e6145349fdc8","originalAuthorName":"陆建生"},{"authorName":"周洁","id":"e04065f0-6f87-46d8-a264-7c0dfc5c1d19","originalAuthorName":"周洁"},{"authorName":"张德丰","id":"c857768c-e704-4698-b35e-fcf5ef9afd1c","originalAuthorName":"张德丰"},{"authorName":"杨滨","id":"024d61cc-d332-4e3a-b4d5-b95f35757239","originalAuthorName":"杨滨"}],"doi":"10.3969/j.issn.1005-0299.2007.02.036","fpage":"290","id":"45500d24-07b2-4e68-a8c1-bf11e875e4d5","issue":"2","journal":{"abbrevTitle":"CLKXYGY","coverImgSrc":"journal/img/cover/CLKXYGY.jpg","id":"14","issnPpub":"1005-0299","publisherId":"CLKXYGY","title":"材料科学与工艺"},"keywords":[{"id":"2ff9b30e-f3cf-4d24-bfa5-a14f14743e07","keyword":"金属薄膜","originalKeyword":"金属薄膜"},{"id":"68b37594-b6d9-4d59-8421-afd4648d1049","keyword":"沉积因素","originalKeyword":"沉积因素"},{"id":"8858e5be-0fa5-4715-bd64-b1a696568ca6","keyword":"有限单元","originalKeyword":"有限单元法"},{"id":"dcffa06c-7351-4c93-9f24-e49a891417f9","keyword":"计算机模拟","originalKeyword":"计算机模拟"}],"language":"zh","publisherId":"clkxygy200702036","title":"影响金属薄膜沉积初期因素的有限单元模拟","volume":"15","year":"2007"},{"abstractinfo":"基于离散单元,建立引入Areal Gas DistributiOn( AGD)技术COREX竖炉物料运动行为的DEM模型。模型计算结果与文献物理实验结果一致,证明模型的合理性。模拟结果显示,AGD竖炉内存在三种类型的流动区域:活塞流区、准停滞区及沟流区。物料运动流型呈现Flat→波浪→W的演变过程。 AGD梁下方形成的三角形空隙是还原煤气导入竖炉中心的主要煤气通道。竖炉围管区域AGD梁的安装会影响该区域物料的均匀下降,局部区域的较大法向力可能导致物料的挤压黏结,诱发围管slOt堵塞。","authors":[{"authorName":"游洋","id":"5cc86fe7-454d-47fb-8824-983c66ab5de6","originalAuthorName":"游洋"},{"authorName":"周恒","id":"e51ada95-59f3-4727-84db-dc7782e5fe7e","originalAuthorName":"周恒"},{"authorName":"张涛","id":"faac1823-e769-470c-97b4-77ab88d33888","originalAuthorName":"张涛"},{"authorName":"罗志国","id":"8188feba-d8cb-48e0-a3aa-a421e5411412","originalAuthorName":"罗志国"},{"authorName":"邹宗树","id":"26600662-7b50-42c4-9dab-3904cff2693b","originalAuthorName":"邹宗树"}],"doi":"10.14186/j.cnki.1671-6620.2016.01.002","fpage":"6","id":"d33d4809-ab70-4bf8-b687-ba402c215095","issue":"1","journal":{"abbrevTitle":"CLYYJXB","coverImgSrc":"journal/img/cover/CLYYJXB.jpg","id":"17","issnPpub":"1671-6620","publisherId":"CLYYJXB","title":"材料与冶金学报"},"keywords":[{"id":"c5c80e56-2f8f-44c8-a5f0-ef8551a9cda4","keyword":"COREX竖炉","originalKeyword":"COREX竖炉"},{"id":"58e55fda-23ef-4053-a559-5af8f31c6fa6","keyword":"AGD","originalKeyword":"AGD"},{"id":"93cdb9d7-5481-4634-bd7f-9b3b21f65441","keyword":"离散单元","originalKeyword":"离散单元"},{"id":"bc2e2a03-3a0d-4c4b-b5de-c28f356e0dd2","keyword":"物料运动","originalKeyword":"物料运动"},{"id":"9972e34d-ae05-4211-a0bd-cba801a7df54","keyword":"向力","originalKeyword":"法向力"}],"language":"zh","publisherId":"clyyjxb201601002","title":"基于离散单元模拟引入AGD技术COREX竖炉物料运动行为","volume":"15","year":"2016"}],"totalpage":3597,"totalrecord":35963}