{"id":3767,"date":"2021-04-30T22:09:02","date_gmt":"2021-04-30T15:09:02","guid":{"rendered":"https:\/\/www.nstda.or.th\/archives\/?p=3767"},"modified":"2021-08-26T11:46:17","modified_gmt":"2021-08-26T04:46:17","slug":"manaschai-anscse","status":"publish","type":"post","link":"https:\/\/www.nstda.or.th\/archives\/manaschai-anscse\/","title":{"rendered":"\u0e14\u0e23.\u0e21\u0e19\u0e31\u0e2a\u0e0a\u0e31\u0e22 \u0e04\u0e38\u0e13\u0e32\u0e40\u0e28\u0e23\u0e29\u0e10 \u0e40\u0e19\u0e04\u0e40\u0e17\u0e04 \u0e2a\u0e27\u0e17\u0e0a. \u0e04\u0e27\u0e49\u0e32\u0e23\u0e32\u0e07\u0e27\u0e31\u0e25\u0e43\u0e19\u0e07\u0e32\u0e19\u0e1b\u0e23\u0e30\u0e0a\u0e38\u0e21\u0e19\u0e32\u0e19\u0e32\u0e0a\u0e32\u0e15\u0e34 ANSCSE \u0e04\u0e23\u0e31\u0e49\u0e07\u0e17\u0e35\u0e48 24"},"content":{"rendered":"<p>\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e27\u0e31\u0e19\u0e17\u0e35\u0e48 28 \u2013 30 \u0e40\u0e21\u0e29\u0e32\u0e22\u0e19 2564 \u0e28\u0e39\u0e19\u0e22\u0e4c\u0e40\u0e17\u0e04\u0e42\u0e19\u0e42\u0e25\u0e22\u0e35\u0e2d\u0e34\u0e40\u0e25\u0e47\u0e01\u0e17\u0e23\u0e2d\u0e19\u0e34\u0e01\u0e2a\u0e4c\u0e41\u0e25\u0e30\u0e04\u0e2d\u0e21\u0e1e\u0e34\u0e27\u0e40\u0e15\u0e2d\u0e23\u0e4c\u0e41\u0e2b\u0e48\u0e07\u0e0a\u0e32\u0e15\u0e34 (\u0e40\u0e19\u0e04\u0e40\u0e17\u0e04) \u0e2a\u0e33\u0e19\u0e31\u0e01\u0e07\u0e32\u0e19\u0e1e\u0e31\u0e12\u0e19\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c\u0e41\u0e25\u0e30\u0e40\u0e17\u0e04\u0e42\u0e19\u0e42\u0e25\u0e22\u0e35\u0e41\u0e2b\u0e48\u0e07\u0e0a\u0e32\u0e15\u0e34 (\u0e2a\u0e27\u0e17\u0e0a.) \u0e42\u0e14\u0e22\u0e17\u0e35\u0e21\u0e19\u0e31\u0e01\u0e27\u0e34\u0e08\u0e31\u0e22 \u0e08\u0e32\u0e01\u0e28\u0e39\u0e19\u0e22\u0e4c\u0e17\u0e23\u0e31\u0e1e\u0e22\u0e32\u0e01\u0e23\u0e04\u0e2d\u0e21\u0e1e\u0e34\u0e27\u0e40\u0e15\u0e2d\u0e23\u0e4c\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e04\u0e33\u0e19\u0e27\u0e13\u0e02\u0e31\u0e49\u0e19\u0e2a\u0e39\u0e07 (ThaiSC) \u0e19\u0e33\u0e42\u0e14\u0e22 \u0e14\u0e23.\u0e21\u0e19\u0e31\u0e2a\u0e0a\u0e31\u0e22 \u0e04\u0e38\u0e13\u0e32\u0e40\u0e28\u0e23\u0e29\u0e10 \u0e44\u0e14\u0e49\u0e40\u0e02\u0e49\u0e32\u0e23\u0e48\u0e27\u0e21\u0e19\u0e33\u0e40\u0e2a\u0e19\u0e2d\u0e1c\u0e25\u0e07\u0e32\u0e19\u0e43\u0e19\u0e07\u0e32\u0e19\u0e1b\u0e23\u0e30\u0e0a\u0e38\u0e21\u0e19\u0e32\u0e19\u0e32\u0e0a\u0e32\u0e15\u0e34 The 24th International Annual Symposium on Computational Science and Engineering (ANSCSE) \u0e42\u0e14\u0e22\u0e04\u0e27\u0e32\u0e21\u0e23\u0e48\u0e27\u0e21\u0e21\u0e37\u0e2d\u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07\u0e04\u0e13\u0e30\u0e28\u0e34\u0e25\u0e1b\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c\u0e41\u0e25\u0e30\u0e27\u0e34\u0e17\u0e22\u0e32\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c \u0e21\u0e2b\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e25\u0e31\u0e22\u0e40\u0e01\u0e29\u0e15\u0e23\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c \u0e27\u0e34\u0e17\u0e22\u0e32\u0e40\u0e02\u0e15\u0e01\u0e33\u0e41\u0e1e\u0e07\u0e41\u0e2a\u0e19 \u0e41\u0e25\u0e30\u0e2a\u0e21\u0e32\u0e04\u0e21\u0e27\u0e34\u0e17\u0e22\u0e32\u0e01\u0e32\u0e23\u0e41\u0e25\u0e30\u0e27\u0e34\u0e28\u0e27\u0e01\u0e23\u0e23\u0e21\u0e40\u0e0a\u0e34\u0e07\u0e04\u0e2d\u0e21\u0e1e\u0e34\u0e27\u0e40\u0e15\u0e2d\u0e23\u0e4c \u0e0b\u0e36\u0e48\u0e07\u0e08\u0e31\u0e14\u0e02\u0e36\u0e49\u0e19\u0e43\u0e19\u0e23\u0e39\u0e1b\u0e41\u0e1a\u0e1a\u0e2d\u0e2d\u0e19\u0e44\u0e25\u0e19\u0e4c \u0e42\u0e14\u0e22\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e04\u0e27\u0e49\u0e32\u0e23\u0e32\u0e07\u0e27\u0e31\u0e25 Honorable Oral Presentation Award\u00a0 \u0e1c\u0e25\u0e07\u0e32\u0e19\u0e40\u0e23\u0e37\u0e48\u0e2d\u0e07 \u201cGrid Spacing for Efficient Data Center CFD Simulation : A Preliminary Study\u201d<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-3775\" src=\"https:\/\/www.nstda.or.th\/archives\/wp-content\/uploads\/2021\/04\/20210806-Nachat.png\" alt=\"\" width=\"1920\" height=\"1080\" srcset=\"https:\/\/www.nstda.or.th\/archives\/wp-content\/uploads\/2021\/04\/20210806-Nachat.png 1920w, https:\/\/www.nstda.or.th\/archives\/wp-content\/uploads\/2021\/04\/20210806-Nachat-300x169.png 300w, https:\/\/www.nstda.or.th\/archives\/wp-content\/uploads\/2021\/04\/20210806-Nachat-1024x576.png 1024w, https:\/\/www.nstda.or.th\/archives\/wp-content\/uploads\/2021\/04\/20210806-Nachat-768x432.png 768w, https:\/\/www.nstda.or.th\/archives\/wp-content\/uploads\/2021\/04\/20210806-Nachat-1536x864.png 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/p>\n<p><!--more--><\/p>\n<p>Abstract : With increasing power densities in next-generation data center equipment, Computational Fluid Dynamics (CFD) is a promising tool for identifying cooling inefficiencies to save costs and improve server reliability [1]. The accuracy of these simulations depends on grid spacing. While fine grids capture flow characteristics more accurately, their heavy computational demands render them impractical in large-scale simulations. Therefore, determining suitable grid spacing is the key to balancing simulation accuracy and computational demands [2].<\/p>\n<p>In this preliminary work, we explored the extent of simulation accuracy which gains from grid refinement. Here, we investigated the effect of grid spacing on data center simulation results using a steady-state pressure-based SIMPLEC solver. To determine the effect of the proposed method, we performed two near-constant refinements on a uniform grid and assessed spatial convergence with Roache\u2019s Grid Convergence Index [3]. The relative errors of each grid were calculated based on values obtained by Richardson extrapolation [4]. A non-conformal grid was created with spacing informed by the uniform grid error data. Our preliminary results suggest that uniform, locally-coarsened non-conformal grids produce results comparable to conformal grids with similar minimum spacing. A further study would involve assessing potential efficiency gains from non-uniform grids by performing unidirectional coarsening.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e27\u0e31\u0e19\u0e17\u0e35\u0e48 28 \u2013 30 \u0e40\u0e21\u0e29\u0e32\u0e22\u0e19 2564 \u0e28\u0e39\u0e19\u0e22\u0e4c\u0e40\u0e17\u0e04\u0e42\u0e19\u0e42\u0e25\u0e22\u0e35\u0e2d\u0e34\u0e40\u0e25\u0e47\u0e01\u0e17\u0e23\u0e2d\u0e19\u0e34\u0e01\u0e2a\u0e4c\u0e41\u0e25\u0e30\u0e04\u0e2d\u0e21\u0e1e\u0e34\u0e27\u0e40\u0e15\u0e2d\u0e23\u0e4c\u0e41\u0e2b\u0e48\u0e07\u0e0a\u0e32\u0e15\u0e34 (\u0e40\u0e19\u0e04\u0e40\u0e17\u0e04) \u0e2a\u0e33\u0e19\u0e31\u0e01\u0e07\u0e32\u0e19\u0e1e\u0e31\u0e12\u0e19\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c\u0e41\u0e25\u0e30\u0e40\u0e17\u0e04\u0e42\u0e19\u0e42\u0e25\u0e22\u0e35\u0e41\u0e2b\u0e48\u0e07\u0e0a\u0e32\u0e15\u0e34 (\u0e2a\u0e27\u0e17\u0e0a.) \u0e42\u0e14\u0e22\u0e17\u0e35\u0e21\u0e19\u0e31\u0e01\u0e27\u0e34\u0e08\u0e31\u0e22 \u0e08\u0e32\u0e01\u0e28\u0e39\u0e19\u0e22\u0e4c\u0e17\u0e23\u0e31\u0e1e\u0e22\u0e32\u0e01\u0e23\u0e04\u0e2d\u0e21\u0e1e\u0e34\u0e27\u0e40\u0e15\u0e2d\u0e23\u0e4c\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e04\u0e33\u0e19\u0e27\u0e13\u0e02\u0e31\u0e49\u0e19\u0e2a\u0e39\u0e07 (ThaiSC) \u0e19\u0e33\u0e42\u0e14\u0e22 \u0e14\u0e23.\u0e21\u0e19\u0e31\u0e2a\u0e0a\u0e31\u0e22 \u0e04\u0e38\u0e13\u0e32\u0e40\u0e28\u0e23\u0e29\u0e10 \u0e44\u0e14\u0e49\u0e40\u0e02\u0e49\u0e32\u0e23\u0e48\u0e27\u0e21\u0e19\u0e33\u0e40\u0e2a\u0e19\u0e2d\u0e1c\u0e25\u0e07\u0e32\u0e19\u0e43\u0e19\u0e07\u0e32\u0e19\u0e1b\u0e23\u0e30\u0e0a\u0e38\u0e21\u0e19\u0e32\u0e19\u0e32\u0e0a\u0e32\u0e15\u0e34 The 24th International Annual Symposium on Computational Science and Engineering (ANSCSE) \u0e42\u0e14\u0e22\u0e04\u0e27\u0e32\u0e21\u0e23\u0e48\u0e27\u0e21\u0e21\u0e37\u0e2d\u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07\u0e04\u0e13\u0e30\u0e28\u0e34\u0e25\u0e1b\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c\u0e41\u0e25\u0e30\u0e27\u0e34\u0e17\u0e22\u0e32\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c \u0e21\u0e2b\u0e32\u0e27\u0e34\u0e17\u0e22\u0e32\u0e25\u0e31\u0e22\u0e40\u0e01\u0e29\u0e15\u0e23\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c \u0e27\u0e34\u0e17\u0e22\u0e32\u0e40\u0e02\u0e15\u0e01\u0e33\u0e41\u0e1e\u0e07\u0e41\u0e2a\u0e19 \u0e41\u0e25\u0e30\u0e2a\u0e21\u0e32\u0e04\u0e21\u0e27\u0e34\u0e17\u0e22\u0e32\u0e01\u0e32\u0e23\u0e41\u0e25\u0e30\u0e27\u0e34\u0e28\u0e27\u0e01\u0e23\u0e23\u0e21\u0e40\u0e0a\u0e34\u0e07\u0e04\u0e2d\u0e21\u0e1e\u0e34\u0e27\u0e40\u0e15\u0e2d\u0e23\u0e4c \u0e0b\u0e36\u0e48\u0e07\u0e08\u0e31\u0e14\u0e02\u0e36\u0e49\u0e19\u0e43\u0e19\u0e23\u0e39\u0e1b\u0e41\u0e1a\u0e1a\u0e2d\u0e2d\u0e19\u0e44\u0e25\u0e19\u0e4c \u0e42\u0e14\u0e22\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e04\u0e27\u0e49\u0e32\u0e23\u0e32\u0e07\u0e27\u0e31\u0e25 Honorable Oral Presentation Award\u00a0 \u0e1c\u0e25\u0e07\u0e32\u0e19\u0e40\u0e23\u0e37\u0e48\u0e2d\u0e07 \u201cGrid Spacing for Efficient Data Center CFD Simulation : A Preliminary Study\u201d<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,821,493],"tags":[665,668,664,676,607,663,677,666,662,604,667],"class_list":["post-3767","post","type-post","status-publish","format-standard","hentry","category-nstda-archives","category-nectec","category-493","tag-anscse","tag-honorable-oral-presentation-award","tag-international-annual-symposium-on-computational-science-and-engineering","tag-manaschai-kunaseth","tag-nectec","tag-thaisc","tag-677","tag-666","tag-662","tag-604","tag-667"],"_links":{"self":[{"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/posts\/3767","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/comments?post=3767"}],"version-history":[{"count":2,"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/posts\/3767\/revisions"}],"predecessor-version":[{"id":3778,"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/posts\/3767\/revisions\/3778"}],"wp:attachment":[{"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/media?parent=3767"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/categories?post=3767"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nstda.or.th\/archives\/wp-json\/wp\/v2\/tags?post=3767"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}