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nlk:KSI000486650 a nlon:Book , nlon:OfflineMaterial , bibo:Article ;
rdfs:label "복잡 지표경계 영역에서 경계 일치 좌표계를 이용한 수치 시뮬레이션에 관한 연구 / 홍정혜, 김유근,이화운" ;
bibframe:extent "26 cm" , "p. 339-350" ;
nlon:biographicalNote "김유근, 부산대학교 대기과학과" , "이화운, 부산대학교 대기과학과" , "홍정혜, 부산대학교 대기과학과" ;
nlon:classificationNumberOfNLK "539.905" ;
nlon:containedIn nlk:KSE199901039_5370558 ;
nlon:datePublished "2021-01-30T23:37:12"^^xsd:dateTime ;
nlon:issuedYear "2000" ;
nlon:itemNumberOfNLK "한475" ;
nlon:volumeOfNLK "16(1)" ;
dc:creator "홍정혜" , "김유근" , "이화운" ;
dc:subject "Body-fitted coordinate system" , "경계 일치 좌표계" , "Complex terrain" , "수치 시뮬레이션" , "Grid generation" , "Heat diffusion equation" , "Wind field" ;
dcterms:creator nlk:KAC201823089 , nlk:KAC201700723 ;
dcterms:description "Study on numerical simulation using body-fitted coordinate system for complex terrain" ;
dcterms:isPartOf nlk:KSE199901039 ;
dcterms:language ;
dcterms:title "복잡 지표경계 영역에서 경계 일치 좌표계를 이용한 수치 시뮬레이션에 관한 연구" ;
bibo:abstract "The three-dimensional new coordinate system over a single hill, double hills and complex terrain with a single hill and a rectangular obstacle was generated using a body-fitted coordinate system. Control of the coordinate line distribution in the field was executed by generalizing the elliptic generating system to Poisson equation, ▽²ξ=P. The new coordinate system was well fitted to the surface boundary of a single hill and double hills. But in the case of complex terrain with hill and rectangular obstacle there was smoothing tendency around the rectangular obstacle.\n In order to show the validity of the body-fitted coordinate system the heat diffusion equation was transformed and the temperature distribution was calculated over the various terrain. The results showed the temperature distribution was very symmetrical and stable around hills and obstacle. As a result the couple of a body-fitted coordinate system and the heat diffusion equation were executed successfully.\n Wind field over complex terrain with hill and rectangular obstacle which represent urban area was simulated stably in body-fitted coordinate system. The qualitativie result show the enhancement of wind speed at the upwind direction of a hill and a rectangular obstacle and the recirculation zone at the downwind direction."@en .