Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface
In the present study, a coupling bionic method is used to study the drag reduction characteristics of corrugated surface with lubrication. In order to test the drag reduction features, bionic specimen was prepared inspired by earthworm surface and lubrication. Based on the reverse engineering method...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2019/4984756 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849683371673780224 |
|---|---|
| author | Guomin Liu Xueqiao Wu Meng Zou Yuying Yan Jianqiao Li |
| author_facet | Guomin Liu Xueqiao Wu Meng Zou Yuying Yan Jianqiao Li |
| author_sort | Guomin Liu |
| collection | DOAJ |
| description | In the present study, a coupling bionic method is used to study the drag reduction characteristics of corrugated surface with lubrication. In order to test the drag reduction features, bionic specimen was prepared inspired by earthworm surface and lubrication. Based on the reverse engineering method, nonsmooth curve of earthworm surface was extracted and the bionic corrugated sample was designed, and the position of lubrication hole was established by experimental testing. The lubricating drag reduction performance, the influence of normal pressure, the forward velocity, and the flow rate of lubricating fluid on the forward resistance of the bionic specimens were analyzed through a single factor test by using the self-developed test equipment. The model between the forward resistance and the three factors was established through the ternary quadratic regression test. The results show that the drag reduction effect is obvious, the drag reduction rate is 22.65% to 34.89%, and the forward resistance decreases with the increase of the forward velocity, increases with the increase of the normal pressure, and decreases first and then becomes stable with the increase of flow rate of lubricating fluid. There are secondary effects on forward resistance by the three factors, and the influencing order is as follows: normal pressure>flow rate of lubricating fluid>forward velocity. |
| format | Article |
| id | doaj-art-dc3e7a7d43d24f6fbd3e0e646967ab5e |
| institution | DOAJ |
| issn | 1176-2322 1754-2103 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-dc3e7a7d43d24f6fbd3e0e646967ab5e2025-08-20T03:23:56ZengWileyApplied Bionics and Biomechanics1176-23221754-21032019-01-01201910.1155/2019/49847564984756Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication SurfaceGuomin Liu0Xueqiao Wu1Meng Zou2Yuying Yan3Jianqiao Li4College of Civil Engineering, Jilin Jianzhu University, Changchun 130118, ChinaKey Laboratory of Bionic Engineering, Jilin University, Changchun 130022, ChinaKey Laboratory of Bionic Engineering, Jilin University, Changchun 130022, ChinaFaculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UKKey Laboratory of Bionic Engineering, Jilin University, Changchun 130022, ChinaIn the present study, a coupling bionic method is used to study the drag reduction characteristics of corrugated surface with lubrication. In order to test the drag reduction features, bionic specimen was prepared inspired by earthworm surface and lubrication. Based on the reverse engineering method, nonsmooth curve of earthworm surface was extracted and the bionic corrugated sample was designed, and the position of lubrication hole was established by experimental testing. The lubricating drag reduction performance, the influence of normal pressure, the forward velocity, and the flow rate of lubricating fluid on the forward resistance of the bionic specimens were analyzed through a single factor test by using the self-developed test equipment. The model between the forward resistance and the three factors was established through the ternary quadratic regression test. The results show that the drag reduction effect is obvious, the drag reduction rate is 22.65% to 34.89%, and the forward resistance decreases with the increase of the forward velocity, increases with the increase of the normal pressure, and decreases first and then becomes stable with the increase of flow rate of lubricating fluid. There are secondary effects on forward resistance by the three factors, and the influencing order is as follows: normal pressure>flow rate of lubricating fluid>forward velocity.http://dx.doi.org/10.1155/2019/4984756 |
| spellingShingle | Guomin Liu Xueqiao Wu Meng Zou Yuying Yan Jianqiao Li Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface Applied Bionics and Biomechanics |
| title | Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface |
| title_full | Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface |
| title_fullStr | Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface |
| title_full_unstemmed | Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface |
| title_short | Experimental Study on Drag Reduction Characteristics of Bionic Earthworm Self-Lubrication Surface |
| title_sort | experimental study on drag reduction characteristics of bionic earthworm self lubrication surface |
| url | http://dx.doi.org/10.1155/2019/4984756 |
| work_keys_str_mv | AT guominliu experimentalstudyondragreductioncharacteristicsofbionicearthwormselflubricationsurface AT xueqiaowu experimentalstudyondragreductioncharacteristicsofbionicearthwormselflubricationsurface AT mengzou experimentalstudyondragreductioncharacteristicsofbionicearthwormselflubricationsurface AT yuyingyan experimentalstudyondragreductioncharacteristicsofbionicearthwormselflubricationsurface AT jianqiaoli experimentalstudyondragreductioncharacteristicsofbionicearthwormselflubricationsurface |