\u7686\u69d8\u30016\/26\u65e5(\u6708)\u306e\u6d41\u4f53\u529b\u5b66\u30bb\u30df\u30ca\u30fc\u3092\u5fa1\u6848\u5185\u3044\u305f\u3057\u307e\u3059\u3002
\n\u5fa1\u6765\u8074\u6b53\u8fce\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n
\u65e5\u6642\uff1a2016\u5e74 6\u6708 26\u65e5\uff08\u6708\uff09 15:00 \u304b\u3089 16:30<\/p>\n
\u5834\u6240\uff1a \u4eac\u90fd\u5927\u5b66 \u6570\u7406\u89e3\u6790\u7814\u7a76\u6240 204\u53f7\u5ba4<\/p>\n
\u8b1b\u5e2b\uff1a Prof. Tamer A. Zaki
\n\uff08Mechanical Engineering, Johns Hopkins University\uff09<\/p>\n
\u8b1b\u6f14\u984c\u76ee\uff1a
\nLARGE-SCALE STRUCTURES IN TRANSITIONAL AND TURBULENT BOUNDARY LAYERS<\/p>\n
\u8b1b\u6f14\u8981\u65e8\uff1a
\n In transitional and turbulent boundary layers, an interface separates
\nthe non-turbulent and turbulent regions of the flow. In the transition
\nzone, this interface surrounds localized patches of turbulence that
\nare formed sporadically and spread to consume the surrounding laminar
\nflow. In the turbulent regime, the interface marks the free-stream
\nedge of the boundary layer and separates the vortical near-wall motion
\nfrom the outer potential flow. Using direct numerical simulations, we
\nexamine characteristics of this turbulent\/non-turbulent (T\/NT)
\ninterface. In the case of transition we relate its formation, or the
\ninception of turbulence patches, to the streaky structures known as
\nKlebanoff distortions. In the fully turbulent boundary layer,
\nstatistical evidence is presented that the interface is locally
\nmodulated by the large-scale velocity perturbations in both the
\nstreamwise and spanwise directions. The modulation is different when
\nthe coherent structure is high- versus low-speed motion: high-speed
\nstructures lead to a wedgeshaped deformation of the T\/NT interface,
\nwhich causes an anti-correlation between the angles of the interface
\nand the internal shear layer. On the other hand, low-speed structures
\nare correlated with crests in the interface. Finally, the sudden
\nchanges in turbulence statistics across the interface are in line with
\nthe changes in the population of low-speed structures, which consist
\nof slower mean streamwise velocity and stronger turbulence than the
\nhigh-speed counterparts.<\/p>\n
+–+–+–+–+–+–+–+–+–+–+–+–+–+–+–+–+–+–+–+–<\/p>\n
\u4e16\u8a71\u4eba\uff1a\u5c71\u7530 \u9053\u592b(\u4eac\u5927\u6570\u7406\u7814)\uff0c \u7af9\u5e83 \u771f\u4e00\uff08\u4eac\u5927\u6570\u7406\u7814\uff09\uff0c
\n\u3000\u3000\u3000\u3000\u85e4 \u5b9a\u7fa9(\u4eac\u5927)\uff0c\u677e\u672c \u525b(\u4eac\u5927\u7406)
\n\u30a2\u30c9\u30d0\u30a4\u30b6\u30fc\uff1a\u6c34\u5cf6 \u4e8c\u90ce(\u540c\u5fd7\u793e\u5927\u5de5)\uff0c \u4f59\u7530 \u6210\u7537\uff08\u4eac\u5927\u7406\uff09
\n\u9023\u7d61\u5148\uff1a\u5c71\u7530\u9053\u592b yamada_at_kurims.kyoto-u.ac.jp
\n=========================================================<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7686\u69d8\u30016\/26\u65e5(\u6708)\u306e\u6d41\u4f53\u529b\u5b66\u30bb\u30df\u30ca\u30fc\u3092\u5fa1\u6848\u5185\u3044\u305f\u3057\u307e\u3059\u3002 \u5fa1\u6765\u8074\u6b53\u8fce\u3044\u305f\u3057\u307e\u3059\u3002 \u65e5\u6642\uff1a2016\u5e74 6\u6708 26\u65e5\uff08\u6708\uff09 15:00 \u304b\u3089 16:30 \u5834\u6240\uff1a \u4eac\u90fd\u5927\u5b66 \u6570\u7406\u89e3\u6790\u7814\u7a76\u6240 204\u53f7\u5ba4 \u8b1b\u5e2b\uff1a Prof. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-871","post","type-post","status-publish","format-standard","hentry","category-47"],"_links":{"self":[{"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=\/wp\/v2\/posts\/871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=871"}],"version-history":[{"count":4,"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=\/wp\/v2\/posts\/871\/revisions"}],"predecessor-version":[{"id":875,"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=\/wp\/v2\/posts\/871\/revisions\/875"}],"wp:attachment":[{"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=871"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/kyoryu.scphys.kyoto-u.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}