| 超高压水射流冲击岩石的流固耦合分析 |
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| 引用本文： | 廖华林,李根生.超高压水射流冲击岩石的流固耦合分析[J].水动力学研究与进展(A辑),2004,19(4):452-457. |
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| 作者姓名： | 廖华林 李根生 |
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| 作者单位： | 1. 石油大学(华东)石油工程学院,山东东营,257061
2. 石油大学(北京)石油天然气工程学院,北京,102249 |
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| 基金项目： | 国家杰出青年科学基金项目(50125413)，国家自然科学基金重点项目(50234030) |
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| 摘 要： | 根据流固耦合理论，建立了超高压水射流冲击破岩系统的数值分析理论模型。水射流采用标准k-ε双方程模型和控制体积法，岩石采用各向同性弹性介质和有限元法，给出了水射流与岩石耦合的数值算法。并按建立的理论模型计算了岩石在水射流速度为316.2m/s、447.2m/s、547.7m/s、632.5m/s冲击下流场规律和岩石内部的应力分布，为超高压水射流破岩机理的研究提供一种新的数值方法。
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| 关 键 词： | 水射流 流固耦合 岩石 k-ε方程 |
| 文章编号： | 1000-4874(2004)04-0452-06 |
Fluid-structure interaction of high pressure water jets impinging on rock |
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| LIAO Hua-lin,LI Gen-sheng.Fluid-structure interaction of high pressure water jets impinging on rock[J].Journal of Hydrodynamics,2004,19(4):452-457. |
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| Authors: | LIAO Hua-lin LI Gen-sheng |
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| Affiliation: | LIAO Hua-lin~1,LI Gen-sheng~2 |
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| Abstract: | A numerical analyzing model high pressure water jets impinging on rock is established according to fluid-structure interaction theory. In the model, the standard k-epsilon two equations model and control volume method for water jets, and the elastic orthotropic continuum and finite element method for rock are adapted. Also, a numerical algorithm for both materials is given. Fluid field characteristics and stress distributions in rock under the conditions when water jets with 316.2m/s, 447.2m/s, 547.7m/s and 632.5m/s respectively impinge on the rock are computed using the model and algorithm. The investigation affords a new method for studying the mechanics of rock failure due to water jets impact. |
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| Keywords: | water jets fluid-structure interaction rock k-epsilon equations |
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