{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"应用数值方法研究了燃气轮机叶片内部U型通道内流动与顶部换热特性.采用SSTκ-ω模型,分析了U型通道内光滑和带凹坑顶部结构以及不同Re数和旋转数对U型通道内部流动和顶部换热的影响,结果表明:在静止条件下,带凹坑结构的通道顶部Nu数较高,并且随着凹坑深度的增加,通道顶部换热能力增强;并且凹坑结构对通道压降的影响较小.随雷诺数增大,凹坑对通道顶部换热增强的幅度降低.在旋转状态下,随着旋转数的增加,通道顶部换热能力增强,但通道压降增大.","authors":[{"authorName":"刘娜","id":"d1ea59fd-79d4-4d5c-a0e4-0559f73a161e","originalAuthorName":"刘娜"},{"authorName":"刘钊","id":"5570bf1d-0613-4938-b4a8-b1d691080e47","originalAuthorName":"刘钊"},{"authorName":"丰镇平","id":"0737d7d2-9f98-46b8-a183-a38f97fd4660","originalAuthorName":"丰镇平"}],"doi":"","fpage":"1733","id":"f734bcd1-1916-4fd7-96c6-2914c89bcfc6","issue":"9","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":"aa531381-a27b-41fd-b8fc-8709a2bae0ed","keyword":"燃气轮机","originalKeyword":"燃气轮机"},{"id":"1fa19e1e-d2ca-4f92-86e4-17b770df15bb","keyword":"叶片内部冷却","originalKeyword":"叶片内部冷却"},{"id":"dbe1e485-4a69-4b11-bd74-b859df8650c4","keyword":"U型通道","originalKeyword":"U型通道"},{"id":"311367f1-ec52-4333-bd7e-06ec8b1e8fd7","keyword":"凹坑","originalKeyword":"凹坑"}],"language":"zh","publisherId":"gcrwlxb201409012","title":"U型通道内部流动与换热的数值研究","volume":"35","year":"2014"},{"abstractinfo":"本实验选取航空发动机涡轮叶片中段内部冷却通道为研究对象,对不同肋间距的横肋变截面U型通道的换热特性进行了研究.实验模型中,矩形肋对称布置在上下两个表面,肋高为1.5mm,肋宽为2 mm,肋与流体流向夹角为90°.实验结果表明,当节距比为10时,通道的平均换热效果最佳,节距比为16.6时,通道的平均换热效果次之,节距比为13.3和20时,通道的平均换热效果相当,且较差.","authors":[{"authorName":"刘湘云","id":"22d08724-9d1c-4f6f-8ea3-54d4b086ba31","originalAuthorName":"刘湘云"},{"authorName":"丁水汀","id":"9fdf0e31-ffdf-4f01-9894-7b299c432487","originalAuthorName":"丁水汀"},{"authorName":"陶智","id":"9de6d506-383d-49a0-b4de-0208730d1029","originalAuthorName":"陶智"}],"doi":"","fpage":"858","id":"b673c6e1-b44e-42a9-bce3-fdabf08000d1","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":"5f1f3219-a212-4d72-8055-e46dd2b513d0","keyword":"变截面","originalKeyword":"变截面"},{"id":"d304a51e-45aa-40db-9d17-42159b9cd6b8","keyword":"肋间距","originalKeyword":"肋间距"},{"id":"4ff4f40b-a8c0-432e-847f-b98457f544a5","keyword":"通道","originalKeyword":"通道"},{"id":"e1785e65-d573-41d6-a9b4-75e032a674d9","keyword":"换热","originalKeyword":"换热"}],"language":"zh","publisherId":"gcrwlxb200405041","title":"横肋变截面U通道内换热特性的实验研究","volume":"25","year":"2004"},{"abstractinfo":"数值模拟了旋转状态下涡轮叶片U形内冷通道湍流流场和温度场,分析了其换热的变化规律.结果表明,旋转状态下哥氏力、离心力和浮升力的共同作用使得流场相对于静态发生了较大的变化.总体上讲,旋转强化了换热.但是旋转使得换热能力在各个面分布不均,增加了温度梯度.","authors":[{"authorName":"邓宏武","id":"ef098dc7-53ae-4241-9bdd-c929b82f5f55","originalAuthorName":"邓宏武"},{"authorName":"陶智","id":"54a5af18-8aec-459e-b703-bca0d5ea88ad","originalAuthorName":"陶智"},{"authorName":"徐国强","id":"5d007e4f-3a20-4236-96af-3e0e8bfd1dce","originalAuthorName":"徐国强"},{"authorName":"丁水汀","id":"39bd3842-c0cd-4764-a811-546c156166f0","originalAuthorName":"丁水汀"}],"doi":"","fpage":"739","id":"aafc8ad8-0d9b-4338-919f-491da0aaca42","issue":"6","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":"22ed5ac7-dda6-48b5-8f42-6b7083bcc1a7","keyword":"燃气轮机","originalKeyword":"燃气轮机"},{"id":"c7a10fe6-a17a-4745-9b4d-43fcd5cd09e6","keyword":"冷却叶片","originalKeyword":"冷却叶片"},{"id":"9f94d22d-d4c3-4c71-b50d-70975b7cbf33","keyword":"对流传热","originalKeyword":"对流传热"},{"id":"94becebe-6007-4347-9302-020e46ab8446","keyword":"旋转","originalKeyword":"旋转"}],"language":"zh","publisherId":"gcrwlxb200206024","title":"旋转光滑U形通道内换热的三维模拟","volume":"23","year":"2002"},{"abstractinfo":"本文对恒热流边界条件下锯齿型通道内流动与换热的非稳态特性进行了数值模拟.在本文计算的Re范围内,流动和换热随时间发生振荡,且U-V和Nu-θ相图表明,振荡是周期性的;在入口段后,发生振荡的各几何周期的流场、温度场随时间变化的规律基本相同,不同周期对应点的U、θ相同,只是在时间上不完全同步,U-V和Nu-θ相图上的曲线重合良好,因此仍具有周期性充分发展的特性.","authors":[{"authorName":"卢玫","id":"24e630cf-89af-4c7c-9714-f81361c1434c","originalAuthorName":"卢玫"},{"authorName":"董晶瑾","id":"e3698003-c0dc-4f2a-86bf-9917a8467777","originalAuthorName":"董晶瑾"},{"authorName":"杨茉","id":"058d61c4-2337-491e-b12a-0840455c1c6f","originalAuthorName":"杨茉"},{"authorName":"李凌","id":"aa5ad5aa-bf17-4c8a-acc3-221bd37bb1ef","originalAuthorName":"李凌"},{"authorName":"邹宽","id":"e388c549-1944-4d28-9a0c-b6f57a2f7f05","originalAuthorName":"邹宽"}],"doi":"","fpage":"1208","id":"a3d5dcf4-4fd5-4ebe-94d5-b211b73bbf6f","issue":"7","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":"9fce02d8-27a6-42d7-8ed0-a7fd3ad20b9d","keyword":"恒热流","originalKeyword":"恒热流"},{"id":"40e99cd5-385c-4534-8abd-20608d0284fc","keyword":"数值模拟","originalKeyword":"数值模拟"},{"id":"4277ecd7-f4a1-4573-bc63-d21446126776","keyword":"非稳态特性","originalKeyword":"非稳态特性"},{"id":"083e40bf-3e33-42ea-9a3a-0b4a10f34951","keyword":"周期性充分发展","originalKeyword":"周期性充分发展"}],"language":"zh","publisherId":"gcrwlxb200807034","title":"恒热流锯齿型通道流动和换热的非稳态特性","volume":"29","year":"2008"},{"abstractinfo":"地下换热器是地源热泵的重要组成部分,竖直U型管是最常见的地下换热器形式. U型管与土壤间的传热受诸多因素的影响.为分析这些因素对于U型管传热的影响,本文建立了地源热泵竖直U型管地下换热器的三维全尺寸数值模型,在此基础上采用CFD软件FLUENT对U型管的埋管深度、进口水温、管内流速等一系列因素在冬夏不同工况下对U型管传热量的影响进行了数值模拟研究.经过整理分析得出的各种因素对传热量影响可以为优化工程设计提供依据.","authors":[{"authorName":"吴玉庭","id":"7716d218-a6a6-4adb-a0e6-b6c77cf386bd","originalAuthorName":"吴玉庭"},{"authorName":"顾中煊","id":"ea7a7efa-762a-48f0-a02e-48de17a6ad24","originalAuthorName":"顾中煊"},{"authorName":"马重芳","id":"971f2a5f-6285-4e6b-bd29-4675c8f0fa0c","originalAuthorName":"马重芳"},{"authorName":"唐志伟","id":"c45d32af-b489-4acc-b492-a7766d9f1ff8","originalAuthorName":"唐志伟"}],"doi":"","fpage":"116","id":"a2e1ca75-fec5-46ac-b4bc-6173e2668784","issue":"1","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":"cd15ea07-bef2-4d67-b89b-9085f1f42131","keyword":"U型管","originalKeyword":"U型管"},{"id":"49eb5f3e-e043-4098-a879-9209c643e4e4","keyword":"传热","originalKeyword":"传热"},{"id":"b6bdf53b-4b4f-4314-a50e-956e6545c103","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gcrwlxb200701038","title":"U型管传热量影响因素的数值模拟研究","volume":"28","year":"2007"},{"abstractinfo":"依据水力学原理,建立了竖立式U型中空纤维膜出水量及内压的数学模型,对其结果的理论分析表明:在相同的水头作用下,纤维膜流量随距出水口距离的减小而呈比例增加,但在出水水头较高时,增加的速率要大于出水水头较低时增加的速率;类似地,在纤维内部的不同位置,流量随出水作用水头的增加而增大的速率也是不同的,离纤维出口越近,这种速率的增加就越快,越明显.因此,要想增大出水流量,应尽量提高出水的作用水头,另外还可以在一定范围内增加纤维的长度;纤维内压随距出水口距离的减小而迅速减小,曲线呈类抛物线的形状;离出水口越远,纤维内压随出水水头的增大而增加的速率越大;流量与内压成直线关系,纤维内部距出水口越近,内压随流量增加而增加的梯度越小;由于液体黏度的影响,温度升高,流量增大;但温度越高,流量的增加梯度越小. ","authors":[{"authorName":"杨大春","id":"ede77d85-067c-42b9-8ee5-c18248d891ed","originalAuthorName":"杨大春"}],"doi":"10.3969/j.issn.1007-8924.2004.01.004","fpage":"16","id":"3de1d7b0-69a5-44b9-9e82-11bb73b9da83","issue":"1","journal":{"abbrevTitle":"MKXYJS","coverImgSrc":"journal/img/cover/MKXYJS.jpg","id":"54","issnPpub":"1007-8924","publisherId":"MKXYJS","title":"膜科学与技术 "},"keywords":[{"id":"0d9308e5-4808-403b-996b-8dc77089c7e2","keyword":"中空纤维膜","originalKeyword":"中空纤维膜"},{"id":"873a9122-d7e1-4a1e-b085-d2f8db18d579","keyword":"U型膜组件","originalKeyword":"U型膜组件"},{"id":"6bffb3ba-4ad5-41b4-8313-6c35e4fa28d3","keyword":"水力模型","originalKeyword":"水力模型"},{"id":"17f7aad7-5ecf-4826-962f-74f617ed573e","keyword":"水流量","originalKeyword":"水流量"},{"id":"a8207752-4f5a-4a83-98b3-f3b1ee9d23f2","keyword":"内压","originalKeyword":"内压"}],"language":"zh","publisherId":"mkxyjs200401004","title":"U型中空纤维膜水力特性的模型分析","volume":"24","year":"2004"},{"abstractinfo":"以自然循环压水反应堆一回路系统的蒸汽发生器为对象,对蒸汽发生器并联倒U型管内单相水发生的倒流机理及其特性进行了分析,确定了倒流发生的条件和范围,以及发生倒流的倒U型管结构等.在此基础上,建立了分析自然循环系统蒸汽发生器倒U型管内单相水倒流的数学模型,并进行了计算,得出了蒸汽发生器倒U型管内正流和倒流流量、正流和倒流管分布等,并使用实验结果对计算结果进行了检验.研究结果表明,倒流对系统的自然循环能力有重要影响.","authors":[{"authorName":"杨瑞昌","id":"6f14f870-2153-4b24-b150-8a6af79a57a5","originalAuthorName":"杨瑞昌"},{"authorName":"刘京宫","id":"0208f21e-106f-42db-89d8-e3efafe6dedc","originalAuthorName":"刘京宫"},{"authorName":"刘若雷","id":"a23e3ef8-ff51-477e-bf82-dbc3574d6e0f","originalAuthorName":"刘若雷"},{"authorName":"覃世伟","id":"157d3ec7-3b16-423c-9461-fd7e46d66da0","originalAuthorName":"覃世伟"}],"doi":"","fpage":"807","id":"78656e98-b2d2-40df-a98b-7c8333a30400","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":"7f57a2a0-1cd4-4e8e-97c2-793ea29af08e","keyword":"蒸汽发生器","originalKeyword":"蒸汽发生器"},{"id":"c9893e4b-86a8-41ab-b385-85781c80b8e7","keyword":"自然循环","originalKeyword":"自然循环"},{"id":"9e1c0f4a-313e-4ca4-8bd2-cabbfe7df389","keyword":"倒流","originalKeyword":"倒流"},{"id":"c225b412-c3d3-4fbe-a3af-7da811884ac2","keyword":"理论分析","originalKeyword":"理论分析"}],"language":"zh","publisherId":"gcrwlxb200805022","title":"自然循环蒸汽发生器倒U型管内倒流特性研究","volume":"29","year":"2008"},{"abstractinfo":"地下换热器是地源热泵系统重要的组成部分,单U型管是当前广泛使用的地下换热器形式.本文建立了单U型管地下换热器的真实尺寸三维数值模型,通过模拟结果同试验实测数据的对比,验证了模型的正确性.本文随后对单U型管地下换热器在冬季工况下连续运行和间歇运行的换热率进行了数值计算,得出了换热率随时间变化的规律.本文还对连续运行工况下U型管作用半径随时间变化的规律进行了研究.本文得出的结果可以用来指导地源热泵工程的设计.","authors":[{"authorName":"顾中煊","id":"a055f4ec-c6e7-48f8-be69-c85c2cd4afc2","originalAuthorName":"顾中煊"},{"authorName":"吴玉庭","id":"8518b087-c6e4-41de-9f5a-8c2c34217c78","originalAuthorName":"吴玉庭"},{"authorName":"唐志伟","id":"4c502748-cafb-4de3-8ce7-0bf6d4351e57","originalAuthorName":"唐志伟"},{"authorName":"马重芳","id":"abc86fa5-1f4a-4fb6-8cd8-07b1658c2fee","originalAuthorName":"马重芳"}],"doi":"","fpage":"313","id":"dfe5e108-cc55-48e6-88e4-0da8a9b07cb7","issue":"2","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":"a7c6aaae-7006-4403-8818-63c1e21b7267","keyword":"地源热泵","originalKeyword":"地源热泵"},{"id":"5acb365a-aa9b-49de-b087-6ef1dec9460a","keyword":"U型管","originalKeyword":"U型管"},{"id":"efa785b1-aec7-4b0e-aa71-7e4335259a05","keyword":"传热","originalKeyword":"传热"},{"id":"a0b9ab78-e643-475c-bcdb-5ff3b0781fb4","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gcrwlxb200602043","title":"U型管地下换热系统非稳态传热数值模拟","volume":"27","year":"2006"},{"abstractinfo":"设计了一台U型脉冲管制冷机,并对直线连接管和U型连接管两种不同的冷头连接管进行了实验研究.对冷头连接管与脉管之间的各种导流结构进行比较,找到了最佳的导流方式,并在此基础之上,研究了连接管管径对制冷机制冷性能的影响.结果表明,存在一个连接管最佳直径使得U型脉管制冷机获得最高的制冷效率;U型连接管相比较直线连接管会引起弯管损失,当输入声功越大时,损失越大;本实验中,最佳的U型脉管制冷机性能相对直线型脉管制冷机情况下降了18%.","authors":[{"authorName":"张祥镇","id":"5419a1fc-79ba-4949-a22b-3fab85eae6da","originalAuthorName":"张祥镇"},{"authorName":"胡剑英","id":"2deab0fb-d02e-4cde-b3a0-7dcb30b68604","originalAuthorName":"胡剑英"},{"authorName":"崔浩","id":"f1cba8bd-d1e0-4e7a-9048-ae318ddb7b71","originalAuthorName":"崔浩"},{"authorName":"童欢","id":"065912a3-4b9e-4330-b602-2afcfc8c8c86","originalAuthorName":"童欢"},{"authorName":"罗二仓","id":"5fc1f574-bc82-49b1-929b-69700d16508b","originalAuthorName":"罗二仓"}],"doi":"","fpage":"724","id":"17db6828-fdbd-4346-9590-0e2f5726c749","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":"02fe9621-c5ea-4225-aeac-2b2a4703d2d0","keyword":"冷头连接管","originalKeyword":"冷头连接管"},{"id":"ce88600e-d4ef-413d-ae6c-f24f8811f75f","keyword":"U型脉管制冷机","originalKeyword":"U型脉管制冷机"},{"id":"c3040b3b-e528-468d-83ca-40d9605f9545","keyword":"导流结构","originalKeyword":"导流结构"}],"language":"zh","publisherId":"gcrwlxb201504007","title":"U型脉管制冷机冷头连接管的实验研究","volume":"36","year":"2015"},{"abstractinfo":"以钻孔壁为界将垂直U型埋管的换热区域划分为钻孔内外两部分,并分别采用稳态与非稳态传热来分析求解,两区域模型间通过钻孔壁温耦合连接,从而构建了二区域U型埋管传热解析解模型.对于钻孔以外部分,采用变热流圆柱源模型来求解钻孔瞬时壁温.钻孔以内部分,基于元体能量平衡法建立了考虑埋管流体温度沿程变化及U型两支管间热干扰的钻孔内U型埋管传热模型.实验验证表明,该模型预测出的埋管出口温度值与实测值的变化趋势一致,预测相对误差在6%以内.所建二区域U型埋管传热模型可为地源热泵系统的动态模拟、优化设计及其改进提供参考.","authors":[{"authorName":"杨卫波","id":"c8edd6dd-bbfe-447b-815a-41ca26052ad2","originalAuthorName":"杨卫波"},{"authorName":"施明恒","id":"77a0e461-033f-4cce-aa5e-9c94eded9162","originalAuthorName":"施明恒"}],"doi":"","fpage":"857","id":"bfda8daf-716b-4df6-a728-5bd0d993a42b","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":"9e4b3a26-6bae-44ef-bd3c-a0fdb6700b8b","keyword":"地源热泵","originalKeyword":"地源热泵"},{"id":"26c994e6-957c-4f9a-9685-032a79f414a4","keyword":"垂直U型埋管","originalKeyword":"垂直U型埋管"},{"id":"51eac302-d06c-471d-a25c-2012b9fb6981","keyword":"传热模型","originalKeyword":"传热模型"},{"id":"18bff0c0-5e45-49a6-a217-4bf0b08bbe29","keyword":"实验验证","originalKeyword":"实验验证"}],"language":"zh","publisherId":"gcrwlxb200805036","title":"二区域U型埋管传热模型及其实验验证","volume":"29","year":"2008"}],"totalpage":2155,"totalrecord":21546}