{"id":549,"date":"2022-10-08T09:53:54","date_gmt":"2022-10-08T00:53:54","guid":{"rendered":"https:\/\/lfc.media-creations.org\/?page_id=549"},"modified":"2022-12-07T15:01:52","modified_gmt":"2022-12-07T06:01:52","slug":"doc1-page-en","status":"publish","type":"page","link":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/research-project-en\/project-en\/doc1-page-en.html","title":{"rendered":"Natural convection"},"content":{"rendered":"\n<p class=\"has-text-align-justify\">Natural convection is one of the fundamental flow systems dominating large scale flows that can be observed in natura and industries. Variety of flow patterns created by very slow flows, <em>O<\/em>(1 mm\/s), contains multiple physics and provides important physical insight to understand phenomenon. We have investigated different types of the convections, such as convections induced by internal heat generation [1], Rayleigh-B\u00e9nard convection (RBC) in a liquid metal layer [2], RBC imposed by a horizontal magnetic field [3], and RBC with background rotation [4]. Recent interest is horizontal convection, which is driven by baroclinic torque due to horizontal temperature gradient [5], and its effect on RBC. We mainly have performed experimental approach to these problems with development of flow measurement techniques, such as PIV\/PTV, ultrasonic Doppler velocimetry (UDV; or ultrasonic velocity profiling, UVP), and thermochromic liquid crystals. Large part of the project is collaborated with geoscience group, JAMSTEC.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<div class=\"wp-block-image aligncenter size-full is-resized\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" src=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/gallium.jpg\" alt=\"\" class=\"wp-image-840\" width=\"375\" height=\"280\" srcset=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/gallium.jpg 500w, https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/gallium-300x224.jpg 300w, https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/gallium-295x220.jpg 295w, https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/gallium-150x112.jpg 150w\" sizes=\"(max-width: 375px) 100vw, 375px\" \/><figcaption>Picture-1: Fluid layer filled by liquid gallium for convection experiment using UVP<\/figcaption><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column\">\n<div class=\"wp-block-image aligncenter size-full\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" width=\"1006\" height=\"382\" src=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/img_1440.png\" alt=\"\" class=\"wp-image-842\" srcset=\"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/img_1440.png 1006w, https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/img_1440-300x114.png 300w, https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/img_1440-768x292.png 768w, https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-content\/uploads\/2022\/10\/img_1440-150x57.png 150w\" sizes=\"(max-width: 1006px) 100vw, 1006px\" \/><figcaption>Picture-2: an example image of horizontal convection visualized by microcapsules of thermochromic liquid crystals<\/figcaption><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n<ol class=\"line_hi has-background\" style=\"background-color: #e3f3ff;\">\n<li class=\"vk_block-margin-xs--margin-top\">Tasaka &amp; Takeda, Intl. J. Heat &amp; Mass Trans., Vol.\u00a084, pp.\u00a01164-1174 (2005)<\/li>\n<li>Yanagisawa <em>et al<\/em>. Phys. Rev. E, Vol.\u00a082, 016320 (2010)<\/li>\n<li>Tasaka <em>et al<\/em>. J. Fluid Mech., Vol. 911, A19 (2021)<\/li>\n<li>\u00a0Noto <em>et al<\/em>. J. Fluid Mech., Vol. 911, A43 (2021)<\/li>\n<li>Noto <em>et al<\/em>. Phys. Rev Fluid, Vol. 6, 083501 (2021)<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Natural convection is one of the fundamental flow systems dominating large scale flows that can be observed in [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":520,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":1,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","vkexunit_cta_each_option":""},"_links":{"self":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/pages\/549"}],"collection":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/comments?post=549"}],"version-history":[{"count":2,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/pages\/549\/revisions"}],"predecessor-version":[{"id":1283,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/pages\/549\/revisions\/1283"}],"up":[{"embeddable":true,"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/pages\/520"}],"wp:attachment":[{"href":"https:\/\/c-mng.cwh.hokudai.ac.jp\/lfc-me.eng\/Root\/wp-json\/wp\/v2\/media?parent=549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}