{"id":96,"date":"2024-04-18T14:02:48","date_gmt":"2024-04-18T05:02:48","guid":{"rendered":"https:\/\/grp.tcu.ac.jp\/fluideng\/?page_id=96"},"modified":"2026-04-07T11:28:04","modified_gmt":"2026-04-07T02:28:04","slug":"research-2","status":"publish","type":"page","link":"https:\/\/grp.tcu.ac.jp\/fluideng\/research-2\/","title":{"rendered":"Research"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Jet Vectoring<\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-video\"><video autoplay controls loop muted src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/AS001.mp4\" playsinline><\/video><\/figure>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">Actively controls the direction and turbulence of primary jet simultaneously by replacing the control port of the conventional flip-flop jet nozzle with speakers.<br><br>&lt;Related paper><br><a href=\"https:\/\/doi.org\/10.1299\/jfst.2024jfst0023\">doi.org\/10.1299\/jfst.<\/a><a href=\"https:\/\/doi.org\/10.1299\/jfst.2024jfst0023\" target=\"_blank\" rel=\"noreferrer noopener\">2024jfst0023<\/a><br><a href=\"https:\/\/doi.org\/10.1063\/5.0269429\">https:\/\/doi.org\/10.1063\/5.0269429<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Axial-flow Fan<\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-video aligncenter\"><video height=\"976\" style=\"aspect-ratio: 976 \/ 976;\" width=\"976\" autoplay controls loop muted src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/AXL.mp4\" playsinline><\/video><\/figure>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\"><\/p>\n\n\n\n<p>Proposing new technology to control flow instability where disturbances with pressure fluctuations propagate in the circumferential direction when an obstacle is located at the intake side of an Axial-flow fan.<br><br>&lt;Related paper&gt;<br><a href=\"http:\/\/dx.doi.org\/https:\/\/doi.org\/10.1115\/1.4047535\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.1115\/1.4047535<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Micro Mixer <\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"281\" src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/mixer.gif\" alt=\"\" class=\"wp-image-177\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">Estimate the concentration fields in our micromixer using the visualization method.<br><br>&lt;Related paper&gt;<br><a href=\"http:\/\/dx.doi.org\/https:\/\/doi.org\/10.1007\/s12650-012-0126-1\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.1007\/s12650-012-0126-1<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Circulation Control Wing <\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"1080\" style=\"aspect-ratio: 1920 \/ 1080;\" width=\"1920\" autoplay controls loop muted src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/CCW001.mov\" playsinline><\/video><\/figure>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">Circulation control using synthetic jet tangentially generated from a slot on a Coanda surface. Specifically, the effect of the frequency and curvature on the flow was analyzed.<br><br>&lt;Related paper><br><a href=\"https:\/\/doi.org\/10.11159\/htff23.183\">doi.org\/10.11159\/htff23.183<\/a><br><br><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Micro Air Vehicle <\/span><\/strong><\/h2>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"587\" src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/Mavs-1024x587.png\" alt=\"\" class=\"wp-image-150\" style=\"width:377px;height:auto\" srcset=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/Mavs-1024x587.png 1024w, https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/Mavs-300x172.png 300w, https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/Mavs-2000x1146.png 2000w, https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/Mavs.png 2016w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">Examines the mechanism of thrust increase due to the ceiling effect in near-ceiling flight, which is one of the concerns for the practical application of multi-copters in indoor environm-ents. Proposing novel rotor with a pressure recovery hole as one of the passive control techniques.<br><br>&lt;Related paper><br><a href=\"http:\/\/dx.doi.org\/https:\/\/doi.org\/10.1115\/1.4063331\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.1115\/1.4063331<\/a><br><br><br><br><br><\/p>\n\n\n\n<p><\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Oil film behavior around OCR<\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"311\" height=\"323\" src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/fig_ocr.jpg\" alt=\"\" class=\"wp-image-295\" style=\"width:203px;height:auto\" srcset=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/fig_ocr.jpg 311w, https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/fig_ocr-289x300.jpg 289w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">We demonstrated the pressure generation mechanism of oil under the oil ring by reproducing the flow field in the gap between the liner and piston skirt\/underside oil ring using CFD.<br><br>&lt;Related paper&gt;<br><a href=\"https:\/\/doi.org\/10.4271\/2019-01-2361\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.4271\/2019-01-2361<\/a><\/p>\n\n\n\n<p><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\"> Slotted Return Vanes  <\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"518\" height=\"534\" src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/RV.png\" alt=\"\" class=\"wp-image-146\" style=\"width:205px;height:auto\" srcset=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/RV.png 518w, https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/RV-291x300.png 291w\" sizes=\"auto, (max-width: 518px) 100vw, 518px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">Return vanes using jet\/suction flow, which can actively respond to changes the flow angle and reduce the energy loss related to separation.<br><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">&lt;Related paper><br><a href=\"https:\/\/avestia.com\/MCM2023_Proceedings\/files\/paper\/HTFF\/HTFF_177.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.11159\/htff23.177<\/a><br><a href=\"https:\/\/doi.org\/10.1007\/s10494-025-00705-z\">https:\/\/doi.org\/10.1007\/s10494-025-00705-z<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">MPI Hydrogen Engine <\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"894\" style=\"aspect-ratio: 1382 \/ 894;\" width=\"1382\" autoplay controls loop muted src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/Hydro.mp4\" playsinline><\/video><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">CFD analysis is performed on the optimum hydrogen jet structure and injection timing to improve the combustion performance of MPI hydrogen engines.<br><br>&lt;Related paper><br><a href=\"https:\/\/doi.org\/10.11351\/jsaeronbun.55.1\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.11351\/jsaeronbun.55.1<\/a><br><a href=\"https:\/\/doi.org\/10.4271\/2023-32-0037\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.4271\/2023-32-0037<\/a><br><br><br><br><br><br><\/p>\n\n\n\n<p><\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong><span data-fontsize=\"21px\" style=\"font-size: 21px;\" class=\"vk_inline-font-size\">Inlet Guide Vanes (IGVs) <\/span><\/strong><\/h2>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"912\" style=\"aspect-ratio: 1568 \/ 912;\" width=\"1568\" autoplay controls loop muted src=\"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/igv.mp4\" playsinline><\/video><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\">IGVs are installed for upstream of a compressor to generate pre-swirling flow which reduces collision losses at the impeller. However, a flow instabilities are occurred downstream of the IGVs. To clarify the mechanism of generation of flow instabilities and suppression pressure fluctuation by conducting EFD &amp; CFD.<br><br>&lt;Related paper&gt;<br><a href=\"http:\/\/dx.doi.org\/https:\/\/doi.org\/10.1299\/jfst.6.651\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.1299\/jfst.6.651<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p id=\"block-2ebfa461-f66c-4dfb-b9f8-430eb1c95a8e\"><br><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Jet Vectoring Actively controls the direction and turbulence of primary jet simultaneously by replacing the co &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/grp.tcu.ac.jp\/fluideng\/research-2\/\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080<span class=\"screen-reader-text\"> &#8220;Research&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":116,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inspiro_hide_title":false,"vkexunit_cta_each_option":"","footnotes":""},"class_list":["post-96","page","type-page","status-publish","has-post-thumbnail","hentry"],"featured_media_urls":{"thumbnail":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-150x150.gif",150,150,true],"medium":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-300x169.gif",300,169,true],"medium_large":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v.gif",768,432,false],"large":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-1024x576.gif",950,534,true],"1536x1536":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v.gif",1280,720,false],"2048x2048":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v.gif",1280,720,false],"inspiro-featured-image":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v.gif",1280,720,false],"inspiro-loop":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-950x320.gif",950,320,true],"inspiro-loop@2x":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-1280x640.gif",1280,640,true],"portfolio_item-thumbnail":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-600x400.gif",600,400,true],"portfolio_item-thumbnail@2x":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-1200x720.gif",1200,720,true],"portfolio_item-masonry":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-600x338.gif",600,338,true],"portfolio_item-masonry@2x":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-1200x675.gif",1200,675,true],"portfolio_item-thumbnail_cinema":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-800x335.gif",800,335,true],"portfolio_item-thumbnail_portrait":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-600x720.gif",600,720,true],"portfolio_item-thumbnail_portrait@2x":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-1200x720.gif",1200,720,true],"portfolio_item-thumbnail_square":["https:\/\/grp.tcu.ac.jp\/fluideng\/wp-content\/uploads\/2024\/04\/drone_v-800x720.gif",800,720,true]},"_links":{"self":[{"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/pages\/96","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/comments?post=96"}],"version-history":[{"count":25,"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/pages\/96\/revisions"}],"predecessor-version":[{"id":463,"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/pages\/96\/revisions\/463"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/media\/116"}],"wp:attachment":[{"href":"https:\/\/grp.tcu.ac.jp\/fluideng\/wp-json\/wp\/v2\/media?parent=96"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}