LI Guo-liang, SHANG Qing, YUAN Xiang-jiang. NUMERICAL SIMULATIONS FOR CAVITATION AND SUPERCAVITATION FLOWS BASED ON PRECONDITIONING[J]. Engineering Mechanics, 2015, 32(8): 250-256. DOI: 10.6052/j.issn.1000-4750.2014.04.0332
Citation: LI Guo-liang, SHANG Qing, YUAN Xiang-jiang. NUMERICAL SIMULATIONS FOR CAVITATION AND SUPERCAVITATION FLOWS BASED ON PRECONDITIONING[J]. Engineering Mechanics, 2015, 32(8): 250-256. DOI: 10.6052/j.issn.1000-4750.2014.04.0332
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NUMERICAL SIMULATIONS FOR CAVITATION AND SUPERCAVITATION FLOWS BASED ON PRECONDITIONING

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  • A numerical method is developed to simulate two dimensional cavitation phenomenon by the preconditioning method, including a flux difference scheme similar to Roe scheme,a modified turbulent model, and a dual-time implicit LU-SGS method. The source terms are added into governing equations to apply for axisymmetric configurations. Two dimensional hydrofoil and axisymmetric hemispherical bodies are computed in terms of all-wet flow, cavitation, and supercavitation. The method is effective and can predict all-wet flow and the development of cavitation and supercavitation for both two dimensional and axisymmetric configurations.
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