| Optimal Design of Sheath Flow Nozzle Acceleration Section for Improving the Focusing Efficiency |
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Jin-Woo Lee, Joung-Min Jin, Youn-Jea Kim |
1Graduate School of Mechanical Engineering, Sungkyunkwan University
2School of Mechanical Engineering, Sungkyunkwan University |
| 집속효율 향상을 위한 외장유동노즐 가속 구간의 최적설계 연구 |
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이진우, 진정민, 김윤제 |
1성균관대학교 일반대학원 기계공학과
2성균관대학교 기계공학부 |
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| Abstract |
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There is a need to use sheath flow nozzle to detect bioaerosol such as virus and bacteria due to their characteristics. In order to enhance the detection performance depending on nozzle parameters, numerical analysis was carried out using a commercial code, ANSYS CFX. Eulerian-lagrangian approach method is used in this simulation. Multiphase flow characteristics between primary fluid and solid were considered. The detection performance was evaluated based on the results of flow field in nozzle chamber such as focusing efficiency and swirl strength. In addition, Latin hypercube sampling(LHS) of design of experiment(DOE) was used for generating a near-random sampling. Then, the acceleration section is optimized using response surface method(RSM). Results show that the optimized model achieved a 6.13 % in a focusing efficiency and 11.47 % increase in swirl strength over the reference model. |
| Key Words:
Sheath Flow Nozzle, Foucusing Efficiency, Latin Hypercube Sampling, Design of Experiments, Response Surface Method |
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