雪崩动力特性计算中干摩擦系数和湍流阻力系数的标定

2018 IEEE International Conference "Quality Management, Transport and Information Security, Information Technologies" (IT&QM&IS) Pub Date : 2018-09-01 DOI:10.1109/ITMQIS.2018.8524963

Y. Bolgov

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引用次数: 0

摘要

在雪崩危险性评估和防护结构设计中，采用数学模型对雪崩参数进行计算。瑞士雪与雪崩研究所(SLF)开发的计算机程序RAMMS被广泛用于通过二维水力模型计算真实地形条件下的雪崩运动。实际应用该数学模型的一个必要条件是用实际雪崩数据标定干摩擦系数和湍流阻力系数的值。本文给出了不同类型雪崩对这些因子的校正结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Calibration of Dry Friction and Turbulent Drag Coefficients in the Calculation of the Dynamic Characteristics of Snow Avalanches

Mathematical modeling is used to calculate the parameters of avalanches in the assessment of avalanche danger and design of protective structures. The computer program RAMMS, developed at the Swiss Institute for snow and avalanche studies (SLF), is widely used for calculation of avalanche movement by a two-dimensional hydraulic model in real relief conditions. A necessary condition for the application of this mathematical model in practice is the calibration of the values of the coefficients of dry friction and turbulent resistance from the data of real avalanches. The article presents the results of calibration of these factors for avalanches of different types.

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2018 IEEE International Conference "Quality Management, Transport and Information Security, Information Technologies" (IT&QM&IS)

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