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  • LA

  • Modeling hydraulic resistance of floodplain vegetation

    • Authors: Hulscher, S.J.M.H.; Huthoff, F.;  Advisor: -;  Participants: - (2007)

  • Thesis gives an overview of theory of turbulent flows, in particular related to wall-bounded flows and applicability in river engineering; focusses on the vegetation resistance method pro- posed; an alterna- tive description of depth-averaged flow over (idealized) vegetation is pre- sented; the method is compared to flow measurements that were collected in natural waterways; a synthesis of investigated vegetation resistance models is given, and detailed characteristics of the two methods are compared; consequences for river flood forecasting and opportunities for other fields of applications are discussed; supplemented with recommendations for practical application and future research.
  • BB

  • Safety evaluation system for hydraulic metal structures based on knowledge engineering

    • Authors: Gu, C.; Yang, G.;  Advisor: -;  Participants: - (2008)

  • A comprehensive safety evaluation system taking the most influential factors into account has been developed to evaluate the reliability of hydraulic metal structures. Applying the techniques of AI and DB, the idea of a one-machine and three-base system is proposed. The framework of the three-base system has been designed and the structural framework constructed in turn. A practical example is given to illustrate the process of using this system and it can be used for comparison and analysis purposes. The key technology of the system is its ability to reorganize and improve the expert system's knowledge base by establishing the expert system. This system utilizes the computer technology inference process, making safety evaluation conclusions more reasonable and applicable to the act...
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