On friction factor of fluid channels fabricated using selective laser melting
The fabrication quality of horizontal fluid channels without supports using SLM is low, which further affects friction loss in channels. In the paper, circular fluid channels with diameters from 2 to 14 mm were built horizontally using 316L SS. The surface roughness on the top inner channel is 50–80...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2020-10-01
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| Series: | Virtual and Physical Prototyping |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/17452759.2020.1823093 |
| _version_ | 1797678642603491328 |
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| author | Yi Zhu Lei Zhou Shuai Wang Chao Zhang Cong Zhao Lei Zhang Huayong Yang |
| author_facet | Yi Zhu Lei Zhou Shuai Wang Chao Zhang Cong Zhao Lei Zhang Huayong Yang |
| author_sort | Yi Zhu |
| collection | DOAJ |
| description | The fabrication quality of horizontal fluid channels without supports using SLM is low, which further affects friction loss in channels. In the paper, circular fluid channels with diameters from 2 to 14 mm were built horizontally using 316L SS. The surface roughness on the top inner channel is 50–80 μm, while the rest part is approximately 10 μm. The cylindricity is around 0.2 and circularity is 0.16. The fabrication quality was significantly improved using reduced energy input with a compensation model. Friction factor measurements indicate that 75/Re is still valid in laminar flow regardless of fabrication quality. The friction factor in turbulent flow is 0.0034–0.0137, which is higher than the classical theory. Improved fabrication quality slightly reduces the friction factor. A corrected Colebrook model is developed to predict the friction factors for SLM horizontal fluid channels. Building orientation and fluid path need to be considered for reducing pressure loss. |
| first_indexed | 2024-03-11T23:02:54Z |
| format | Article |
| id | doaj.art-b31540651d2546ad84a09023393151c7 |
| institution | Directory Open Access Journal |
| issn | 1745-2759 1745-2767 |
| language | English |
| last_indexed | 2024-03-11T23:02:54Z |
| publishDate | 2020-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj.art-b31540651d2546ad84a09023393151c72023-09-21T14:38:02ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672020-10-0115449650910.1080/17452759.2020.18230931823093On friction factor of fluid channels fabricated using selective laser meltingYi Zhu0Lei Zhou1Shuai Wang2Chao Zhang3Cong Zhao4Lei Zhang5Huayong Yang6Zhejiang UniversityZhejiang UniversityZhejiang UniversityZhejiang UniversityZhejiang UniversityZhejiang UniversityZhejiang UniversityThe fabrication quality of horizontal fluid channels without supports using SLM is low, which further affects friction loss in channels. In the paper, circular fluid channels with diameters from 2 to 14 mm were built horizontally using 316L SS. The surface roughness on the top inner channel is 50–80 μm, while the rest part is approximately 10 μm. The cylindricity is around 0.2 and circularity is 0.16. The fabrication quality was significantly improved using reduced energy input with a compensation model. Friction factor measurements indicate that 75/Re is still valid in laminar flow regardless of fabrication quality. The friction factor in turbulent flow is 0.0034–0.0137, which is higher than the classical theory. Improved fabrication quality slightly reduces the friction factor. A corrected Colebrook model is developed to predict the friction factors for SLM horizontal fluid channels. Building orientation and fluid path need to be considered for reducing pressure loss.http://dx.doi.org/10.1080/17452759.2020.1823093selective laser melting (slm)channelflowadditive manufacturingfriction factor |
| spellingShingle | Yi Zhu Lei Zhou Shuai Wang Chao Zhang Cong Zhao Lei Zhang Huayong Yang On friction factor of fluid channels fabricated using selective laser melting Virtual and Physical Prototyping selective laser melting (slm) channel flow additive manufacturing friction factor |
| title | On friction factor of fluid channels fabricated using selective laser melting |
| title_full | On friction factor of fluid channels fabricated using selective laser melting |
| title_fullStr | On friction factor of fluid channels fabricated using selective laser melting |
| title_full_unstemmed | On friction factor of fluid channels fabricated using selective laser melting |
| title_short | On friction factor of fluid channels fabricated using selective laser melting |
| title_sort | on friction factor of fluid channels fabricated using selective laser melting |
| topic | selective laser melting (slm) channel flow additive manufacturing friction factor |
| url | http://dx.doi.org/10.1080/17452759.2020.1823093 |
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