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Fluid-solid interaction of resistance loss of flexible hose in deep ocean mining

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Abstract

The resistance loss of transportation was studied and the influences of buoyancy layout, mineral content and elastic modulus of flexible hose were investigated based on three-dimensional finite element model of fluid-solid interaction by MSC.MARC/MENTAT software. The numerical results show that the resistance losses increase with the increase of mineral content C v and velocity of internal fluid v and decrease with the increase of elastic modulus E of flexible hose. The buoyancy layout and the velocity of internal fluid have greater impacts on the resistance losses than the elastic modulus of flexible hose. In order to reduce the resistance losses and improve the efficiency of the deep-ocean mining, C v and v must be restricted in a suitable range (e.g. 10%–25% and 2.5–4 m/s). Effective buoyancy layout (such as Scheme C and D) should be adopted and the suitable material of moderate E should be used for the flexible hose in deep-ocean mining.

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Authors and Affiliations

  1. Schools of Mechanics & Engineering Science, Zhengzhou University, Zhengzhou, 450001, China

    Zhi Wang  (王志)

  2. School of Civil Engineering, Central South University, Changsha, 410083, China

    Zhi Wang  (王志) & Qiu-hua Rao  (饶秋华)

  3. School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, China

    Shao-jun Liu  (刘少军)

Authors
  1. Zhi Wang  (王志)
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  2. Qiu-hua Rao  (饶秋华)
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  3. Shao-jun Liu  (刘少军)
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Corresponding author

Correspondence to Qiu-hua Rao  (饶秋华).

Additional information

Foundation item: Project(2006AA09Z240) supported by the National High Technology Research and Development Program of China

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Wang, Z., Rao, Qh. & Liu, Sj. Fluid-solid interaction of resistance loss of flexible hose in deep ocean mining. J. Cent. South Univ. 19, 3188–3193 (2012). https://doi.org/10.1007/s11771-012-1394-6

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  • DOI: https://doi.org/10.1007/s11771-012-1394-6

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