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브로민화 수은 (I)(Hg₂Br₂) 물리적 증착공정의 2차원 밀폐공간에서 이중확산 자연대류에서의 물질전달 연구 : Part II. 물질전달

Mass transfer study of double diffusive natural convection in a two-dimensional enclosure during the physical vapor transport of mercurous bromide (Hg₂Br₂): Part II. Mass transfer

하성호
한국결정성장학회 (The Korea Association Of Crystal Growth, Inc.)|2023.08|한국결정성장학회지 (Journal of the Korean Crystal Growth and Crystal Technology)|제33권 제4호|pp. 145-152|DOI 10.6111/JKCGCT.2023.33.4.145

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참고문헌

키워드

Physical vapor transportHg₂Br₂
주제분류재료공학

초록

2.31×10⁴≤Grₜ≤4.68×10⁴의 범위에서 온도 Grashof 수(Grₜ)의 변화에 대하여, 소스와 결정영역에서의 평균 Nusselt수를 나타내고 있다 . 결정영역에서의 평균 Nusselt 수가 소스영역에서의 평균 Nusselt 수 보다 2배 이상 큰 것으로 나타나고 있다. 소스영역에서의 평균 Nusselt 수는 온도 Grashof 수(Grₜ)에 대하여, 증가하는 경향을 보여주고 있으며, 반면에 결정영역에서의 평균 Nusselt 수는 온도 Grashof 수(Grₜ)에 대하여, 감소하는 경향을 나타나고 있다. 3.28×10⁵≤Grₛ≤4.43×10⁵의 범위에서 농도 Grashof 수(Grₛ)의 변화에 대하여, 소스와 결정영역에서의 평균 Sherwood 수를 나타내고 있다. 소스영역과 결정영역에서의 평균 Sherwood 수는 농도 Grashof 수(Grₛ)가 증가함에 따라 , 감소하는 경향을 보이고 있다. 결정영역에서의 평균 Sherwood 수는 소스영역에서의 평균 Sherwood 수보다 약 4배 정도 크다.

Abstract

The average Nusselt numbers in the source and crystal region for the variation of thermal Grashof number (Grₜ) in the range of 2.31×10⁴≤Grₜ≤4.68×10⁴ are obtained through numerical simulations. It is shown the average Nusselt number in the crystal region is more than twice as large as the average Nusselt number in the source region. The average Nusselt number in the source region shows an increasing tendency with increasing the thermal Grashof number, Grₜ, while the average Nusselt number in the crystal region shows a decreasing tendency with increasing thermal Grashof number, Grₜ. For the variation of the solutal Grashof number (Grₛ) in the range of 3.28×10⁵≤Grs≤4.43×10⁵, the average Sherwood number in the source region and crystal region tends to decrease as the solutal Grashof number, Grₛ increases. The average Sherwood number in the crystal region is about four times greater than the average Sherwood number in the source region.

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관련 논문AI추천

Heat transfer study of double diffusive natural convection in a two-dimensional enclosure at different aspect ratios and thermal Grashof number during the physical vapor transport of mercurous bromide (Hg2Br2): Part I. Heat transfer김극태, 하성호한국결정성장학회 · 한국결정성장학회지2022 · 제32권 제1호염화수은 (I)(Hg₂Cl₂) 물리적 승화공정에서 결정성장과 Nusselt/Sherwood 수의 상관관계에 대한 연구김극태, 박정규한국결정성장학회 · 한국결정성장학회지2025 · 제35권 제4호브로민화수은 (I)(Hg₂Br₂)-요오드 (l₂) 물리적 승화공정에서 높은 Prandtl 수의 온도-농도 대류현상에 대한총괄적 연구김극태한국결정성장학회 · 한국결정성장학회지2024 · 제34권 제6호Double-diffusive convection affected by conductive and insulating side walls during physical vapor transport of Hg₂Br₂권무현, 김극태한국결정성장학회 · 한국결정성장학회지2020 · 제30권 제3호Studies on Nusselt and Sherwood number for diffusion-advective convection during physical vapor transport of Hg2Br2권무현, 김극태한국결정성장학회 · 한국결정성장학회지2021 · 제31권 제3호브로민화수은 (I)(Hg₂Br₂) 증착공정에서 자체확산 연구김극태, 김남일한국결정성장학회 · 한국결정성장학회지2024 · 제34권 제2호

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