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Study on Tribological Mechanism for Multi-layer Porous Structure of Diatom Frustule

  • Microbiology of Aquatic Systems
  • Published:
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Abstract

Tribological mechanism of the diatom frustule with multi-layers of pores is studied with the liquid–solid interaction (FSI) method. Based on the reconstructed representative Coscinodiscus sp. frustule with two-layer porous structure, the tribological performances for the diatom frustule at its different pore diameter ratios, pore depth ratios, and velocities are solved through governing equations involved with FSI method. The numerical result shows that the existence of the two-layer porous structure of the diatom helps to reduce the friction between it and ambient water, and to increase its ability to resist the ambient water pressure. The two-layer porous structure effectively improve the tribological performances for the diatom frustule due to the change in the frustule velocity.

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Acknowledgments

The authors would like to express their gratitude for the support from the Natural Science Foundation of P.R. China (Contract no. 51375509), the Fundamental Research Funds for the Central Universities of P.R. China (Contract no. CDJZR12248801), and program for New Century Excellent Talents of Ministry of Education of P.R. China (Project no. NCET-10-0881).

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Authors and Affiliations

  1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400044, China

    Fanming Meng & Guixiang Gao

  2. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

    Zhihong Jia

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  1. Fanming Meng
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  2. Guixiang Gao
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  3. Zhihong Jia
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Correspondence to Fanming Meng.

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Meng, F., Gao, G. & Jia, Z. Study on Tribological Mechanism for Multi-layer Porous Structure of Diatom Frustule. Microb Ecol 69, 45–58 (2015). https://doi.org/10.1007/s00248-014-0485-3

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  • DOI: https://doi.org/10.1007/s00248-014-0485-3

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