{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"基于CFD数值模拟技术,考虑变比热容及温度对传热系数、黏性系数的影响,研究了不同二次流<span style=\"color:red\">喷口</span>几何构型(矩形及圆孔)在不同落压比、二次流压比等工况下,对激波矢量喷管内的三维流动特性及推力矢量性能的影响.研究表明:随着二次流压比增加,诱导激波角度增加,当诱导激波与上壁面相交时,推力矢量性能恶化;对于矩形<span style=\"color:red\">喷口</span>无量纲展向长度l＜ 1.0时,<span style=\"color:red\">喷口</span>前分离涡演变为马蹄涡,并在<span style=\"color:red\">喷口</span>下游诱导尾涡,SPR＞0.6时随<span style=\"color:red\">喷口</span>无量纲展向长度增大,推力矢量角度增加;对与多孔喷射模型,在压力缓解机理下,不同圆喷孔数量时,下壁面压力分布及壁面极限流线分布存在差异,然而圆喷孔数量对推力矢量角及推力系数的影响仍待进一步探明.","authors":[{"authorName":"史经纬","id":"fe61941e-72de-46a6-9b79-b9c71805495b","originalAuthorName":"史经纬"},{"authorName":"王占学","id":"dfcdd8e3-6c38-4d76-bea5-234cb794cc9f","originalAuthorName":"王占学"},{"authorName":"周莉","id":"1d77964e-76c7-42b0-8d1d-7ebbafd7b2b7","originalAuthorName":"周莉"},{"authorName":"章叶川","id":"203115d5-0b96-4536-9657-621842168aa1","originalAuthorName":"章叶川"},{"authorName":"孙啸林","id":"738fda26-6ecc-493f-9071-a0dab1806c18","originalAuthorName":"孙啸林"}],"doi":"","fpage":"2173","id":"1f4a19e1-6c3c-4b2a-b0db-5defef265ea2","issue":"11","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":"f9325576-1eed-475a-b2e6-7908543d7244","keyword":"激波控制","originalKeyword":"激波控制"},{"id":"1b240edb-5531-42f8-9c7b-02791764d25d","keyword":"<span style=\"color:red\">喷口形状</span>","originalKeyword":"喷口形状"},{"id":"78b11f4c-4c5f-47cf-9a62-2daa70d86c42","keyword":"数值模拟","originalKeyword":"数值模拟"},{"id":"3d3b5835-93bd-42ba-bbaa-408eb87042a4","keyword":"流动特性","originalKeyword":"流动特性"},{"id":"6d9445e3-badf-403a-be7b-eedf3286a867","keyword":"推力矢量角","originalKeyword":"推力矢量角"}],"language":"zh","publisherId":"gcrwlxb201411014","title":"激波矢量喷管二次流<span style=\"color:red\">喷口形</span>态影响研究","volume":"35","year":"2014"},{"abstractinfo":"对具有两种不同进气<span style=\"color:red\">口形状</span>的脉冲爆震发动机(PDE)引射器增推性能进行了实验研究.实验采用汽油为燃料,空气为氧化剂.文章设计了六组具有不同直径,不同引射器入<span style=\"color:red\">口形状</span>的圆柱型引射器.实验采用力传感器法对具有圆形和收敛形入<span style=\"color:red\">口形状</span>的引射器的增推性能进行了实验研究.结果发现脉冲爆震发动机加引射器后的增推性能均有明显的改善.在引射器长径比一定的情况下,采用收敛型进气口的引射器普遍比采用圆形进气口结构的引射器增推效果明显.当引射器位于主爆震管的上游时,直径比为2.5引射器相对其它引射器具有更高的推力增益,最大可达80.5%.","authors":[{"authorName":"黄希桥","id":"a7aaec9e-2506-4e0b-b714-07c2ec754bcc","originalAuthorName":"黄希桥"},{"authorName":"严传俊","id":"d35221f6-d3b7-45f8-8ed2-2aee9ac0dffb","originalAuthorName":"严传俊"},{"authorName":"邓君香","id":"f60054db-98cc-463d-a8c5-48bd47eff195","originalAuthorName":"邓君香"},{"authorName":"范玮","id":"3512b4a3-b1fd-408b-b671-bfad267edbeb","originalAuthorName":"范玮"},{"authorName":"王治武","id":"ba97a9e7-cdd3-412c-b6ad-b6123d380000","originalAuthorName":"王治武"}],"doi":"","fpage":"1486","id":"e38e0320-a44f-474c-b81a-ccbf6579dedb","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":"cd16d980-cbf7-48ac-a889-e19164130391","keyword":"脉冲爆震发动机","originalKeyword":"脉冲爆震发动机"},{"id":"a96287e4-71f8-4341-87f7-8f5df6dd0075","keyword":"引射器入<span style=\"color:red\">口形状</span>","originalKeyword":"引射器入口形状"},{"id":"8a46575b-695c-43a1-b5f0-46766ba0b205","keyword":"推力增益","originalKeyword":"推力增益"},{"id":"f2c7dc98-93b5-4608-8796-52585076ce55","keyword":"实验研究","originalKeyword":"实验研究"}],"language":"zh","publisherId":"gcrwlxb200809012","title":"引射器入<span style=\"color:red\">口形状</span>对PDE的性能影响实验","volume":"29","year":"2008"},{"abstractinfo":"采用1∶1的水力学模型研究了浸入式水口出<span style=\"color:red\">口形状</span>(椭圆形、矩形、方形)对结晶器自由液面特征、流股特征与流场的影响.在通钢量为3.20和4.48 t/min时,结晶器液面波动与表面流速都遵循椭圆形水口＜矩形水口＜方形水口的变化规律.椭圆形水口的流股为“旋转流股”,流股扩展角和倾角最大,流股分散,且在出口处流速分布均匀;方形与矩形水口流股为“平滑流股”,方形水口流股的扩展角和倾角最小,流股集中在出口偏下半部分处;矩形水口流股扩展角、倾角、流股分散与均匀程度居中.综合考虑:在高拉速条件下(通钢量为4.48 t/min),椭圆形水口条件下结晶器液面的平均波高为5.5mm,表面流速为0.32 m/s,仍然有提高拉速的空间,且流股速度在出口处分布均匀,所以较优的水口出<span style=\"color:red\">口形状</span>为椭圆形.","authors":[{"authorName":"熊霄","id":"9eae3953-c030-4200-8b01-6ceaa8f760a4","originalAuthorName":"熊霄"},{"authorName":"邓小旋","id":"90ba26ce-eb43-430b-9802-ec757e73aef5","originalAuthorName":"邓小旋"},{"authorName":"王新华","id":"763124a7-e421-4227-878b-e749752cca58","originalAuthorName":"王新华"},{"authorName":"黄琦","id":"6f47977a-41e5-4053-932c-321267ce854f","originalAuthorName":"黄琦"},{"authorName":"张弘弼","id":"ee86114e-e429-4114-bbfa-b5e7fbba214f","originalAuthorName":"张弘弼"}],"doi":"","fpage":"35","id":"282261bb-4be2-4d22-9077-d3e928ae8cc8","issue":"7","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"c4a3966d-3fa6-4458-963a-fd3b2b4df468","keyword":"水口出<span style=\"color:red\">口形状</span>","originalKeyword":"水口出口形状"},{"id":"32f20b55-2d57-4b90-90c5-71d9d96c0507","keyword":"流股特征","originalKeyword":"流股特征"},{"id":"26d0a7a1-e9b8-4f33-b37a-7707ce46c7ec","keyword":"高拉速板坯连铸","originalKeyword":"高拉速板坯连铸"},{"id":"755bb10b-7bf9-455f-a2c7-f498548640dc","keyword":"浸入式水口","originalKeyword":"浸入式水口"},{"id":"79b658e4-cafa-4378-b050-ae722484cd24","keyword":"水模型","originalKeyword":"水模型"}],"language":"zh","publisherId":"gtyjxb201407007","title":"水口出<span style=\"color:red\">口形状</span>对高拉速板坯连铸结晶器内流场特征的影响","volume":"26","year":"2014"},{"abstractinfo":"","authors":[],"doi":"","fpage":"45","id":"678e76f2-f276-4d85-a8d4-520f953197bf","issue":"1","journal":{"abbrevTitle":"LZ","coverImgSrc":"journal/img/cover/LZ.jpg","id":"52","issnPpub":"1005-4006","publisherId":"LZ","title":"连铸"},"keywords":[{"id":"db7389a4-665e-4f8a-a689-1a83a61039ea","keyword":"","originalKeyword":""}],"language":"zh","publisherId":"lz200501037","title":"旋转流浸入式水口<span style=\"color:red\">喷口</span>的<span style=\"color:red\">形状</span>","volume":"","year":"2005"},{"abstractinfo":"通过分析国内外<span style=\"color:red\">喷口</span>材料产品现状,重点阐述了<span style=\"color:red\">喷口</span>材料PTFE的填充改性研究进展及其耐烧蚀性能的表征研究进展,并对<span style=\"color:red\">喷口</span>材料PTFE的发展方向进行了展望.","authors":[{"authorName":"焦彦俊","id":"57791fa8-9cf3-4545-ab5e-a5202a8219f4","originalAuthorName":"焦彦俊"},{"authorName":"邢照亮","id":"6b2cf008-4be0-4acc-8531-ad0015d60d1b","originalAuthorName":"邢照亮"},{"authorName":"李卫国","id":"0b0dad80-6d0e-4946-8a87-85aa90a7435a","originalAuthorName":"李卫国"},{"authorName":"张翀","id":"a38f1b8b-a06a-4bec-8b90-fab46e3934c8","originalAuthorName":"张翀"}],"doi":"10.16790/j.cnki.1009-9239.im.2016.01.002","fpage":"7","id":"0d5b0d7c-148b-429f-ab4a-9eff60bc01d4","issue":"1","journal":{"abbrevTitle":"JYCL","coverImgSrc":"journal/img/cover/JYCL.jpg","id":"50","issnPpub":"1009-9239","publisherId":"JYCL","title":"绝缘材料"},"keywords":[{"id":"3aa42096-17e5-4aea-a4bd-334644382408","keyword":"<span style=\"color:red\">喷口</span>材料","originalKeyword":"喷口材料"},{"id":"777aa008-5e5f-4afe-a6dd-0551368b2aee","keyword":"表面改性","originalKeyword":"表面改性"},{"id":"e219706d-37aa-4d30-81bc-efbc82e76147","keyword":"耐烧蚀","originalKeyword":"耐烧蚀"},{"id":"f93f8a97-25d9-4f4f-82b5-d8634c41c207","keyword":"PTFE","originalKeyword":"PTFE"}],"language":"zh","publisherId":"jycltx201601002","title":"断路器<span style=\"color:red\">喷口</span>材料PTFE研究现状及发展方向","volume":"49","year":"2016"},{"abstractinfo":"选用BN作为无机填料对<span style=\"color:red\">喷口</span>材料进行填充改性,对比分析氮化硼和氧化铝两种填料的改性效果,研究不同填料添加量对<span style=\"color:red\">喷口</span>材料性能的影响.结果表明:与氧化铝<span style=\"color:red\">喷口</span>材料相比,氮化硼(BN)<span style=\"color:red\">喷口</span>材料具有更高的电气强度、热导率及耐电弧烧蚀能力.","authors":[{"authorName":"袁端鹏","id":"d395e681-3ae1-4598-9fde-6433940b077e","originalAuthorName":"袁端鹏"},{"authorName":"罗军","id":"2d8e291a-c036-4413-8672-e185c295934e","originalAuthorName":"罗军"},{"authorName":"林生军","id":"e6f91fb6-763e-4cb1-8547-9d2f718b7827","originalAuthorName":"林生军"},{"authorName":"郭煜敬","id":"325defc6-3c00-47c0-b6f3-5ce341d4bcff","originalAuthorName":"郭煜敬"},{"authorName":"田浩","id":"2ad68ca5-0a9a-4097-8df0-cba9fdbce139","originalAuthorName":"田浩"}],"doi":"10.16790/j.cnki.1009-9239.im.2017.03.008","fpage":"32","id":"321b478a-2448-4856-8963-c0d668b7a904","issue":"3","journal":{"abbrevTitle":"JYCL","coverImgSrc":"journal/img/cover/JYCL.jpg","id":"50","issnPpub":"1009-9239","publisherId":"JYCL","title":"绝缘材料"},"keywords":[{"id":"c8c2d53f-6595-440f-98fe-2283321ca0c3","keyword":"灭弧<span style=\"color:red\">喷口</span>","originalKeyword":"灭弧喷口"},{"id":"4bdb2c7e-d93e-4d85-bc6c-830b9df2c3e0","keyword":"聚四氟乙烯","originalKeyword":"聚四氟乙烯"},{"id":"259c0e2d-62ad-474d-9960-527e705d871d","keyword":"氮化硼","originalKeyword":"氮化硼"},{"id":"2cf252a4-376c-4423-b401-f735cf705816","keyword":"氧化铝","originalKeyword":"氧化铝"},{"id":"f8cd5859-b5cd-4165-a072-62710cf57c92","keyword":"电弧烧蚀","originalKeyword":"电弧烧蚀"},{"id":"db649438-1d3b-4d6b-97ac-6916ef271e5c","keyword":"开断试验","originalKeyword":"开断试验"}],"language":"zh","publisherId":"jycltx201703008","title":"基于BN填料的高压开关用灭弧<span style=\"color:red\">喷口</span>材料性能研究","volume":"","year":"2017"},{"abstractinfo":"用流动显示的方法对城垛形<span style=\"color:red\">喷口</span>气固两相圆湍射流中的拟序结构进行了研究.实验中采用直径为150 μm和350 μm的玻璃微珠示踪周相,固相的气载比大约在1.0左右.<span style=\"color:red\">喷口</span>流动雷诺数为5000,斯德鲁哈尔数为0.50.实验结果表明:城垛形<span style=\"color:red\">喷口</span>能够影响两相圆湍射流中大涡结构的产生和演化.无动态激励时,城垛形<span style=\"color:red\">喷口</span>能促进大涡结构的产生和演化.有动态激励时,该<span style=\"color:red\">喷口</span>对射流中拟序结构的影响与流场中的颗粒大小有关.因此,城垛形<span style=\"color:red\">喷口</span>是控制两相圆湍射流拟序结构的一个有效途径.","authors":[{"authorName":"容易","id":"9ac3f85b-7fab-4405-b190-dc10fde0a2c0","originalAuthorName":"容易"},{"authorName":"张会强","id":"cc64915c-60be-477b-a28a-cc735910c47f","originalAuthorName":"张会强"},{"authorName":"王希麟","id":"a5be3d66-a5a7-4eca-bce8-4d58c15d1b75","originalAuthorName":"王希麟"}],"doi":"","fpage":"259","id":"ca50f513-c897-420f-a578-32a95af84e21","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":"08cc8f41-2a23-4363-bba9-b95f40f58a6a","keyword":"气固两相射流","originalKeyword":"气固两相射流"},{"id":"cac73d02-5924-4146-a3b5-8a4712e951c7","keyword":"城垛形<span style=\"color:red\">喷口</span>","originalKeyword":"城垛形喷口"},{"id":"ef3003f5-7b15-40e7-bf03-2628b9cae94b","keyword":"激励","originalKeyword":"激励"},{"id":"aa837086-92f3-4f4d-bdea-a7b06b2f65e5","keyword":"流动显示","originalKeyword":"流动显示"}],"language":"zh","publisherId":"gcrwlxb200402023","title":"城垛形<span style=\"color:red\">喷口</span>两相圆湍射流拟序结构的流动显示研究","volume":"25","year":"2004"},{"abstractinfo":"本文采用PDPA设备测量了不同材料(玻璃微珠和铜粉)、不同粒径(250μm和75μm)颗粒存在的条件下,两相圆湍射流中气相湍流度的分布.给出了<span style=\"color:red\">喷口</span>附近两相流中气相湍流度变化的规律.测量结果表明在<span style=\"color:red\">喷口</span>附近区域,速度梯度的变化是影响气相湍流度变化的主要因素.","authors":[{"authorName":"燕小芬","id":"bbbab99f-7666-42cf-ab45-07eb73e5fcaa","originalAuthorName":"燕小芬"},{"authorName":"王希麟","id":"0d3fcb92-10d8-4061-b13f-44dba5a932ca","originalAuthorName":"王希麟"}],"doi":"","fpage":"96","id":"4ea9bae8-4702-4e17-b710-e70e3de318ea","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":"0f78f797-5357-492a-84b9-9d175f9d5da7","keyword":"两相流","originalKeyword":"两相流"},{"id":"e2199dbb-e1f4-476c-a354-84fa336d7a35","keyword":"射流","originalKeyword":"射流"},{"id":"697c1bff-1d82-47f0-a26b-a74e4cab6c8d","keyword":"湍流度","originalKeyword":"湍流度"},{"id":"249770a1-ef76-4877-801b-69a801c7a9bb","keyword":"PDPA","originalKeyword":"PDPA"}],"language":"zh","publisherId":"gcrwlxb200801029","title":"两相湍射流<span style=\"color:red\">喷口</span>附近湍流度影响因素研究","volume":"29","year":"2008"},{"abstractinfo":"研究了大容量断路器<span style=\"color:red\">喷口</span>材料的耐烧蚀性能，设计了一套基于恒流源的直流电弧发生装置，该装置可产生电压在0~400 V、电流在0~50 A内稳定燃烧的直流电弧。结果表明：稳定燃烧的直流电弧呈现负电阻特性；当燃弧时间不变时，<span style=\"color:red\">喷口</span>材料的烧蚀量随着电弧能量的增加而增大。","authors":[{"authorName":"李卫国","id":"8cce02cc-e9ea-4836-993e-1f5904dc9562","originalAuthorName":"李卫国"},{"authorName":"焦彦俊","id":"49b5a8f1-6c4e-42ef-a21c-5e44ebe84ee1","originalAuthorName":"焦彦俊"}],"doi":"10.16790/j.cnki.1009-9239.im.2016.03.014","fpage":"64","id":"e80f5378-63f5-42cc-8903-d2a3c5505ad0","issue":"3","journal":{"abbrevTitle":"JYCL","coverImgSrc":"journal/img/cover/JYCL.jpg","id":"50","issnPpub":"1009-9239","publisherId":"JYCL","title":"绝缘材料"},"keywords":[{"id":"f5ebf480-a43b-4d30-afb2-01d520560ac8","keyword":"<span style=\"color:red\">喷口</span>材料","originalKeyword":"喷口材料"},{"id":"4839b9fe-85e8-430d-b698-089ac31fdee5","keyword":"PTFE","originalKeyword":"PTFE"},{"id":"b556246a-81af-484b-af46-c86de49389ab","keyword":"耐烧蚀","originalKeyword":"耐烧蚀"},{"id":"ff19345e-5521-42b2-9a9d-33633b9cf735","keyword":"电弧","originalKeyword":"电弧"}],"language":"zh","publisherId":"jycltx201603015","title":"大容量断路器<span style=\"color:red\">喷口</span>材料烧蚀性能的试验研究","volume":"49","year":"2016"},{"abstractinfo":"高压断路器用灭弧<span style=\"color:red\">喷口</span>材料由聚四氟乙烯和无机填料组成，混料工艺是<span style=\"color:red\">喷口</span>成型技术中比较关键的一步。选用传统V型混料和三维混料两种方式进行混料和成型试验，研究混料方式对聚四氟乙烯灭弧<span style=\"color:red\">喷口</span>性能的影响。结果表明：三维混料提高了物料的混合频率，改善了混合均匀度，提升了<span style=\"color:red\">喷口</span>材料的综合性能。","authors":[{"authorName":"袁端鹏","id":"23acd192-2a24-4b7a-acd8-d7f76aa4be4b","originalAuthorName":"袁端鹏"},{"authorName":"林生军","id":"16f19413-859a-42e5-aff2-0621d669b74d","originalAuthorName":"林生军"},{"authorName":"郝留成","id":"ae9d31da-bb2f-4676-9a35-94d11f5c0c69","originalAuthorName":"郝留成"},{"authorName":"田浩","id":"623b65ea-a942-4794-b385-b99a7b43d341","originalAuthorName":"田浩"},{"authorName":"罗军","id":"9b55fdf1-8711-4186-a54f-6f57d86f5324","originalAuthorName":"罗军"}],"doi":"","fpage":"55","id":"10c236d1-cdbd-4a55-a77f-6bef58a0dce0","issue":"3","journal":{"abbrevTitle":"JYCL","coverImgSrc":"journal/img/cover/JYCL.jpg","id":"50","issnPpub":"1009-9239","publisherId":"JYCL","title":"绝缘材料"},"keywords":[{"id":"ebff9ff7-4670-4746-a5b7-8a21e1e5758e","keyword":"灭弧<span style=\"color:red\">喷口</span>","originalKeyword":"灭弧喷口"},{"id":"5dca839a-fa5c-4674-bf94-a59751e3263d","keyword":"混料方式","originalKeyword":"混料方式"},{"id":"48314631-ec33-4967-8fe3-2e29c56526bd","keyword":"三维混料","originalKeyword":"三维混料"},{"id":"9b6fad95-2c93-424a-9d17-433adc979bd6","keyword":"混合均匀度","originalKeyword":"混合均匀度"}],"language":"zh","publisherId":"jycltx201503012","title":"混料方式对聚四氟乙烯灭弧<span style=\"color:red\">喷口</span>性能的影响研究","volume":"","year":"2015"}],"totalpage":585,"totalrecord":5847}