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인공 폐 보조장치 내에서의 유체 유동 모델링에 대한 연구
김기범 ( Gi Beum Kim ),박영란 ( Young Ran Park ),김상진 ( Shang Jin Kim ),홍철운 ( Chul Un Hong ),강형섭 ( Hyung Sub Kang ),김진상 ( Jin Shang Kin ),김성종 ( Seong Jong Kim ),김민호 ( Min Ho Kim ) 한국화학공학회 2011 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.49 No.2
In this study, the characteristic of fluid flow in the new type lung assist devices has been established using computational fluid dynamics(CFD). For the modeling, the hollow fiber was ignored, and vertical types and tangential types were used for the model. Which was to analyze the flow characteristics of the fluid Dow model when there exists 1 and 2 input/output pods, and when the input/output ports is located at the center of the cylinder and at the tangential direction with the cylinder wall. The modeling results showed that it was possible to eliminate no-flow region(stagnant layer) as shown in the vertical type when an inlet and an outlet were installed on the tangential direction of the cylinder as shown in the tangential type. Also, in the tangential type, vortex-type flow appeared as dominant, and it showed a complicated flow not deviated to one side. When the number of input/output was two, there was no deviated flow, and complicated flows were generated all across the tube. From the test result, it was found that input/output of flow was tangential type and complicated flows with no stagnant layer would be generated when there are two inputs/outputs, respectively.