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기판 위에 분포된 발열블록 주위의 3차원 혼합대류 열전달 해석
윤병택,최동형,Yun, Byeong-Taek,Choi, Do Hyung 대한기계학회 1999 大韓機械學會論文集B Vol.23 No.1
The three-dimensional laminar mixed convection flow between the conductive printed circuit boards. on which the heat generating rectangular blocks are uniformly distributed, has been examined in the present study. The flow and heat-transfer characteristics are assumed to be pseudo periodic in the streamwise direction and symmetric in the cross-stream direction. Using an algorithm of SIMPLER, the continuity equation. the Navier-Stokes equations and the energy equation are solved numerically in the three-dimensional domain Inside the channel. The convective derivative terms are discretized by the QUICK scheme to accurately capture the flow field. The flow and the heat transfer characteristics are thoroughly examined for various Re and Gr.
윤병택(Byeong-Taek Yun),최도형(Do Hyung Choi) 한국전산유체공학회 1996 한국전산유체공학회 학술대회논문집 Vol.1996 No.-
In this study, the mixed convective heat transfer phenomena in a three-dimensional channel with periodic heat-generating block is studied. An object is to analyze the flow field and temperature distribution in the PCB with conducting wall. Adiabatic wall boundary condition and conducting wall boundary condition(periodic boundary condition) are studied.
윤병택(Byeong-Taek Yun) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-
A pressure reducing valve is used as a device for maintaining an appropriate pressure on the user side. There are many factors that affect the pressure reducing valve performance. Factors include system water pressure, cavitation, water impact, and dissolved air, etc. In this paper, we investigate the problems that may be caused by the factors mentioned above and suggest ways to solve them.