Analýza správania sa a šírenia rázových vĺn v interakcií s prekážkami

Abstract

The presented thesis focuses on addressing and identifying the interaction dynamics of blast waves with obstacles. Obstacles can be classified as physical materials in the path of a blast wave, including building structures, blast walls, and other technologies for blast-pressure minimization. The first part of this work investigates and describes the physiochemical process of explosion and its un-derlying basic relationships. The second part focuses on the description of the current state-of-the-art software portfolio for tracking the phenomenon of fluid flow, induced shock waves, and their synergistic interaction effects. Here, a refi-nement on the description of the basic features and capabilities of each software is presented for a variety of commercial and open-source softwares. To satisfy the requirements of an accurate yet practical computational solution, the as-sessment of appropriate boundary conditions for the developed numerical model was performed on the basis of realized experiments. Once the boundary conditions have been determined, models have been created to follow the interaction between the shock waves and the selected building structures. The combined findings of the presented work was then used to assess and establish the possibi-lity of tracking propagation shock wave properties in more complex environ-ments.

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Subject(s)

Shock wave interaction with obstacles, Autodyn, CFD, numerical model, blast loading, damage to structures

Citation