{"id":767,"date":"2020-04-27T21:38:00","date_gmt":"2020-04-27T13:38:00","guid":{"rendered":"https:\/\/cryost.cn\/?p=767"},"modified":"2020-05-05T21:48:05","modified_gmt":"2020-05-05T13:48:05","slug":"%e6%af%9b%e7%ba%a2%e5%a8%812","status":"publish","type":"post","link":"https:\/\/cryost.cn\/?p=767","title":{"rendered":"\u6bdb\u7ea2\u5a01\u7684\u8bba\u6587\u88abIJHMT\u63a5\u6536"},"content":{"rendered":"\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p style=\"font-size:18px\"><strong>International Journal of Hydrogen Energy<\/strong><br>2019 <\/p>\n\n\n\n<p style=\"font-size:18px\" class=\"has-text-color has-vivid-cyan-blue-color\"><strong><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0017931019366013?via%3Dihub\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Numerical investigation on the mechanism of geyser in cryogenic fluid pipes\uff08\u5728\u65b0\u7a97\u53e3\u6253\u5f00\uff09\">Numerical investigation on the mechanism of geyser in cryogenic fluid pipes<\/a><\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\">H.W. Mao<sup>a<\/sup>, Y.Z. Li<sup>ab<\/sup>, L. Wang<sup>a<\/sup>, J.j. Wang<sup>a<\/sup>, F.S. Xie<sup>a<\/sup><br><sup>a<\/sup>Xi&#8217;an Jiaotong University, Institute of Refrigeration and Cryogenic Engineering, Xi&#8217;an, 710049, China<br><sup>b<\/sup>State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing, 100028, China<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u6458\u8981\uff1a<\/h5>\n\n\n\n<p style=\"font-size:18px\">In order to study the mechanism of geyser in cryogenic fuel system, a CFD model based on VOF method for two-phase heat and mass transfer process is established and validated. The detailed transient behavior and the whole formation process of geyser in a cryogenic pipe are successfully captured and predicted. The prediction performance of 3-D, 2-D axisymmetric and 2-D planar model is evaluated. The formation and development of the whole geyser process are clearly revealed by visualization and macroscopic parameter analysis, and a contrastive study is performed to investigate the mechanism of the pressure peak in a geyser. It is found that: The incubation stage occupies the largest portion of geyser period up to 95% in the presented condition and there is a dramatic pressure fall in the eruption stage and a pressure spike in the refilling stage, which leads to a periodic shock of pressure. The violent depressurization boiling is the main cause of the eruption. Moreover, the water hammer induced by vapor condensation will bring about a huge pressure increase, and it becomes the main mechanism for the pressure spike in the refilling stage. <\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Numerical investigation on the mechanism of geyser in cryogenic fluid pipes<\/p>\n","protected":false},"author":1,"featured_media":607,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"_links":{"self":[{"href":"https:\/\/cryost.cn\/index.php?rest_route=\/wp\/v2\/posts\/767"}],"collection":[{"href":"https:\/\/cryost.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cryost.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cryost.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cryost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=767"}],"version-history":[{"count":0,"href":"https:\/\/cryost.cn\/index.php?rest_route=\/wp\/v2\/posts\/767\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cryost.cn\/index.php?rest_route=\/wp\/v2\/media\/607"}],"wp:attachment":[{"href":"https:\/\/cryost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cryost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cryost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}