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Evaluating Microclimatic Impact Assessment of High-Rise Building in Korea

Evaluating Microclimatic Impact Assessment of High-Rise Building in Korea. Kim, Jae-cheol 1) · Jang, Eun-soo 1) · Hur, Nahm-joo 2) · Shin, Dong-hoon 3) · Lee, Kyoo-seock 4) 1) Graduate Student, Dept. of Landscape Architecture, Sungkyunkwan University

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Evaluating Microclimatic Impact Assessment of High-Rise Building in Korea

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  1. Evaluating Microclimatic Impact Assessment of High-Rise Building in Korea Kim, Jae-cheol1) · Jang, Eun-soo1) · Hur, Nahm-joo2) · Shin, Dong-hoon 3) · Lee, Kyoo-seock4) 1) Graduate Student, Dept. of Landscape Architecture, Sungkyunkwan University 2) Senior, Dept. of Landscape Architecture, Sungkyunkwan University 3) Research Associate,Dept. of Landscape Architecture, Sungkyunkwan University 4) Professor, Dept. of Landscape Architecture, Sungkyunkwan University

  2. Contents • 1. Introduction • 2. Materials and Methods • 3. Results and Discussion • 4. Conclusions

  3. 1. Introduction ● Since late 1990`s ->Lots of high-rise building has been built in Korea ● It creates many micrometeorological impacts ->due to turbulence from nearby high-rise building ● It need the careful and accurate impact assessment -> for keeping the quality of life of residents -> lives in high densely developed urban areas

  4. ● In foreign countries, -> The building wind impact assessment is done as a guideline before building construction. ●In Korea, no assessment in Ministry of Environment Only Seoul City Government ->to assess building wind impact ●So far there has been no conceivable impact by lots of skyscraper construction. ● It needs to be checked whether no impact irrespective of skyscraper construction -> keep - quality of life for urban residents.

  5. ● The purpose of this study -> To review the current guideline ->to confirm whether it has been assessed exactly or not -> to investigate the improvement of current building wind impact assessment guideline in Korea.

  6. Table 1. Microclimate assessment standard of Seoul Government EIA

  7. 3. Materials & Methods ●To review the EIA in Seoul ●Simulation using CFD model -> WinMiskam Ver.9 ●comparison  & evaluation

  8. Table2. Environment Impact Assessment in Seoul

  9. 3. Materials and Methods ●study site ->Shincheon-dong, Songpa-gu & Euljiro-dong, Jung-gu, Seoul. ●It is composed of ->Tall buildings, traffic congestions ● New constructions -> Residential-Commercial Complex Apartments ( 123m. 117m, Shincheon), (148m,Euljiro)

  10. Euljiro-doing, Jung-gu

  11. Shinchon-doing, Songpa-gu

  12. 3. Results and Discussion Table.3 To Example of comparison  analysis

  13. Table. 5 Sincheon area (Elevation 3m,CFD Simulation result)

  14. m/s

  15. Resolution : 2m Initial z: 10m 10m/s (22.37 m/s ) Resolution : 8m Initial z: 10m 10m/s (16.30 m/s ) Shincheon

  16. Resolution : 8m Initial z: 10m 8m/s ( 13.46 m/s ) Resolution : 2m Initial z: 10m 8m/s (17.9 m/s ) Shincheon

  17. Resolution : 2m Initial z: 30m 8m/s (12.81 m/s ) Resolution : 8m Initial z: 30m 8m/s (10.59 m/s ) Shincheon

  18. Table. 6 Euljiro area (Elevation 3m, CFD Simulation result)

  19. Resolution : 2m Initial z: 10m 8m/s 22.37 Resolution : 8m Initial z: 10m 8m/s 16.62 Euljiro

  20. Resolution : 2m Initial z: 30m 8m/s 21.55 Resolution : 8m Initial z: 30m 8m/s 15.04 Euljiro

  21. Discussion ● Wind speed not real data ->used 3 day observed data (x the whole year ) ● When the model input data -> the mean wind speed input where is not the maximum wind velocity ● Problem of Resolution densely built area, 8m->too coarse ● Model selection problem ->(ENVI-met) max. # of cells -> 25 Because this CFD model is designed for low-rise building in Germany, not for skyscrapers in Korea

  22. 4. Conclusions 1) The Wind speed at Shincheon area and Euljiro area ->Neglectable change -> abrupt increase 2) Seoul Government building wind EIA ->Resolution should be finer Wind speed data should be higher Model should handle large volumes of data

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