http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이재신,권순석,Ree, J.S.,Kwon, S.S. 대한설비공학회 1995 설비공학 논문집 Vol.7 No.1
Convective heat transfer in a two-dimensional horizontal and vertical channel with isothermal rectangular beams attached to one adiabatic wall is investigated from the numerical solution of Navier-Stokes and energy equations. The solutions have been obtained for dimensionless beam spacings, S/L=1~4, aspect ratios of beam, H/B=0.25~4, Reynolds numbers, Re=50~1000 and Grashof numbers, $Gr=0{\sim}5{\times}10^4$. The total mean Nusselt number, Nu_T for horizontal and vertical channels shows same value at Gr=0. As Gr increases, Nu_T for horizontal channel increases, but Nu_T for vertical channel shows similar value at S/L=2, H/B=0.25, Re=100. The total mean Nusselt number for horizontal channel is higher than that for vertical channel. As H/B increases, $Nu_T$ for both channel decrease at $Gr=10^4$, Re=100.
김상영,이재신,권순석,Kim, S.Y.,Ree, J.S.,Kwon, S.S. 대한설비공학회 1991 설비공학 논문집 Vol.3 No.2
The mixed convection heat transfer from vertical inline plates has been studied numerically by the finite difference method and experimentally with Mach-Zehnder interferometer. The dimensionless spacing, $s/L_1$, the relative length, $L_2/L_1$ and the dimensionless temperature ratio, ${\Phi}_2/{\Phi}_1$ are varied parametically. The lower plate mean Nusselt numbers show same values as $s/L_1$, ${\Phi}_2/{\Phi}_1$ and $L_2/L_1$ increase. The upper plate mean Nusselt numbers increase as $s/L_1$ and ${\Phi}_2/{\Phi}_1$ increase, but $L_2/L_1$ decreases. The upper plate mean Nusselt number is higher than the lower plate mean Nusselt for $s/L_1$ 1.8 at Re=100, $Gr=10^4$, Pr=0.71, $L_2/L_1=0.5$ and ${\Phi}_2/{\Phi}_1=1.0$. A comparison between the experimental and numerical results show good agreement.
李宰臣,金尙營,權純錫 東亞大學校 1991 東亞論叢 Vol.28 No.1
The mixed convection heat transfer from two and four vertically parallel plates has been studied by experimental method with Mach-Zehnder interferometer. The interplate spacing b/ℓ, Reynolds num-ber Re, Grashof number Gr, is varied parametically. Local Nusselt number distributions for two cases decrease sharply at leading edge and increase sli-ghtly at trailing edge as x/ℓincreases. Total mean Nusselt numbers ??, increase with increaseing Reynolds numbers. The optimum spacings for maximum ?? move to the narrow spacing as Re increa-ses. Comparisons with experimental and numerical results show good agreements.
이재신,박언세,권순석 동아대학교 공과대학 부설 한국자원개발연구소 1993 硏究報告 Vol.17 No.2
Mixed convection heat transfer is investigated by numerical solution of Navier-Stokes and energy equations for and isothermal rectangular beam. The solutions have been obtained for aspect ratios of beam, W=0.3~3, Reynolds numbers, Re=50~150 and Grashof numbers, Gr=0~5×10⁴. The results indicate that as Re increases, the mean back surface Nusselt number decreases to Re=120 for W=0.3 and Re=95 for W=1, 3 and then increases. Independent of aspect ratios of the beam, the mean beam Nusselt number at Gr=10⁴ shows similar value in the region of mixed convection. The mean beam Nusselt number distribution for W=0.3 shows the highest value at Gr/Re²≤1.0 and that for W=3 at Gr/Re²〉1.0. Comparison between the experimental and numerical results shows good agreement.
이재신,양성환,권순석 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.1
Mixed Convection Heat Transfer are investigated in a two-dimensional channel with isothermal square beams attached to an adiabatic plate by numerical method. The solutions have been obtained for dimensionless beam spacings, S/L=1∼3, aspect ratios of beam, B/H=1∼4, Reynolds numbers, Re=20∼500 and Grashof numbers, Gr=0~10^(5). The results indicate that as S/L increases, the total mean Nusselt number increases. The total mean Nusselt number for a horizontal channel is same value at Gr/Re²=0, higher at 0<Gr/Re²≤3.5 and lower at 3.5<Gr/Re²≤10 than that for a vertical channel.
이재신,권순석 동아대학교 공과대학 부설 한국자원개발연구소 1992 硏究報告 Vol.16 No.2
Mixed Convection Heat Transfer are investigated from the numerical solution of Navier-Stokes and energy equations in a two-dimensional horizontal channel with a rectangular beam. The solutions have been obtained for dimensionless distances, Xe=1∼10, Reynolds numbers, Re=50∼500 and Grashof numbers, Gr=0∼5×10⁴. The results indicate that as Xe increases, the mean Nusselt numbers of upper and lower plates are significantly decreased at Xe<5 and then unchanged at Xe≥5. As Gr/Re² increases, the mean Nusselt numbers of beam and lower plate increase and those of upper plate decrease at Xe=5 and Re=100.