Zobrazeno 1 - 10 of 58 pro vyhledávání: '"Bong-Jun CHA"'
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Akademický článek
Experimental Study on the Three-Dimensional Unsteady Flow Characteristics of the Counter-Rotating Axial Flow Fan
Autor: Lee-Sang CHO, Bong-Jun CHA, Jin-Soo CHO
Publikováno v: Journal of Fluid Science and Technology, Vol 4, Iss 1, Pp 200-209 (2009)
The counter-rotating axial flow fan shows that the complex flow characteristics with three-dimensional, viscous, and unsteady flow fields. For the understanding of the entire core flow in counter-rotating axial flow fan, it is necessary to investigat
Externí odkaz: https://doaj.org/article/db1a75785a014f1ca34e58d43280523a
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7
Multi-stage turbocharger system analysis method for high altitude UAV engine
Autor: Young Seok Kang, Bong Jun Cha, Byeung Jun Lim
Publikováno v: Journal of Mechanical Science and Technology. 31:2803-2811
A multi-stage turbocharger system analysis method has been presented for a hydrogen fueled internal combustion engine targeted for High altitude long endurance UAV (HALE UAV), of which cruising altitude is 60000 ft. To utilize an internal combustion
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e47271749e506052ffa0aec6709ae3de
https://doi.org/10.1007/s12206-017-0523-4
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8
Tunable synthesis of hierarchical mesoporous silica via porogen-carrying organosilicates
Autor: Kookheon Char, Ji Man Kim, Whirang Cho, Bong Sup Shim, Bong Jun Cha, Hyung Ik Lee
Publikováno v: Microporous and Mesoporous Materials. 239:409-415
We describe the synthesis and characterization of hierarchically porous organic-inorganic hybrid silica with periodic 2-D hexagonal order and tunable location of secondary nanopores through co-condensation of tetraethylorthosilicate (TEOS) and a new
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b57bbf74212f4e2c35697036e044757c
https://doi.org/10.1016/j.micromeso.2016.10.025
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9
Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor—Part 1: Measurement
Autor: Bong-Jun Cha, Tae Wook Lee, Suyong Kim, Jieun Song, Joo Sung Hong, Seung Jin Song, Dong Hun Lim, Tae Choon Park
Publikováno v: Journal of Engineering for Gas Turbines and Power. 141
Centrifugal compressors can suffer from rotordynamic instability. While individual components (e.g., seals, shrouds) have been previously investigated, an integrated experimental or analytical study at the compressor system level is scarce. For the f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8dcc752526a5798db5e28fd8255d0c71
https://doi.org/10.1115/1.4044874
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10
Conjugate Heat Transfer Analysis to Assess Overall Cooling Effectiveness of High Pressure Turbine Nozzle With Optimized Film Cooling Hole Arrangements
Autor: Bong Jun Cha, Young Seok Kang, Sanga Lee, Dong-Ho Rhee
Publikováno v: Volume 5A: Heat Transfer.
Conjugate heat transfer analysis method has been highlighted for predicting heat exchange between fluid domain and solid domain inside high-pressure turbines, which are exposed to very harsh operating conditions. Then it is able to assess the overall
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5608b651e61f787dc1ab2ca4814d4bb0
https://doi.org/10.1115/gt2019-91194
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