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23 September 2019 Numerical Simulation of Rock Breaking by Abrasive Water Jet
Xiaojing Ma, Tanxiao Zhu, Yue Fu, Yaling Yan, Weixiong Chen
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Abstract

Ma, X.; Zhu, T.; Fu, Y.; Yan, Y., and Chen, W., 2019. Numerical simulation of rock breaking by abrasive water jet. In: Guido-Aldana, P.A. and Mulahasan, S. (eds.), Advances in Water Resources and Exploration. Journal of Coastal Research, Special Issue No. 93, pp. 274–283. Coconut Creek (Florida), ISSN 0749-0208.

In order to analyse the particular feature of rock deformation and breakage in oil and gas resources exploitation, the rock breaking model based on SPH method is established by using the constitutive relation of abrasive material, the corresponding material parameters and the state equations. The three-dimensional dynamic process of rock breaking by abrasive water jet is simulated. The damage and deformation characteristics of the rock with different abrasive concentrations and velocities during the rock breaking process are also studied. The results show that with the increase of abrasive concentration, the depth of deformation in rock increases and the damage area of rock decreases. With the increase of jet velocity, the deformation depth and the damage area of rock increase. Therefore, the effect of rock breaking can be greatly improved by increasing the abrasive concentration and the jet velocity. The accuracy of jet technology and the quality of machined surface can be also improved by adding abrasive into water jet.

©Coastal Education and Research Foundation, Inc. 2019
Xiaojing Ma, Tanxiao Zhu, Yue Fu, Yaling Yan, and Weixiong Chen "Numerical Simulation of Rock Breaking by Abrasive Water Jet," Journal of Coastal Research 93(sp1), 274-283, (23 September 2019). https://doi.org/10.2112/SI93-036.1
Received: 21 September 2018; Accepted: 30 June 2019; Published: 23 September 2019
KEYWORDS
abrasive water jet
fluid-solid coupling
numerical simulation
rock breaking
Smoothed particle hydrodynamics method
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