scholarly journals Numerical Simulation of a Novel Blast Wave Mitigation Device

2006 ◽  
Author(s):  
Zhenbi Su ◽  
Zhaoyan Zhang ◽  
George Gogos ◽  
Reed Skaggs ◽  
Bryan Cheeseman ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Blast Wave

Numerical Simulation of Shock Wave in Air Based on FCT Method

2013 ◽  
Vol 397-400 ◽  
pp. 270-273
Author(s):  
Ying Li ◽  
Xiao Bin Li ◽  
Yu Wang ◽  
Wei Zhang
Keyword(s):  
Numerical Simulation ◽  
Shock Wave ◽  
Comparative Analysis ◽  
Numerical Method ◽  
Blast Wave ◽  
Empirical Formula ◽  
Godunov Method ◽  
Numerical Accuracy

Blast wave is numerical simulated based on FCT method. According to the comparative analysis, taking Henrych empirical formula as a standard, FCT method is more accuracy than Godunov method. Moreover, it has been found that the numerical accuracy is insufficient when the distance is small, it is necessary to develop and modify the numerical method continuously.

Blast Wave Mitigation from the Straight Tube by Using Water Part II - Numerical Simulation

2018 ◽  
Vol 910 ◽  
pp. 78-83 ◽  
Author(s):  
Yuta Sugiyama ◽  
Tomotaka Homae ◽  
Kunihiko Wakabayashi ◽  
Tomoharu Matsumura ◽  
Yoshio Nakayama
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Energy Transfer ◽  
Numerical Simulations ◽  
Blast Wave ◽  
Blast Waves ◽  
Straight Tube ◽  
Water Interface ◽  
Effect Of Water ◽  
Air Water Interface

This paper investigates explosions in a straight square tube in order to understand the mitigation effect of water on blast waves that emerge outside. Numerical simulations are used to assess the effect of water that is put inside the tube. The water reduces the peak overpressure outside, which agrees well with the experimental data. The increases in the kinetic and internal energies of the water are estimated, and the internal energy transfer at the air/water interface is shown to be an important factor in mitigating the blast wave in the present numerical method.

Numerical simulation of laser–target interaction and blast wave formation

1989 ◽  
Vol 1 (7) ◽  
pp. 1463-1476 ◽  
Author(s):  
John L. Giuliani ◽  
Margaret Mulbrandon ◽  
Ellis Hyman
Keyword(s):  
Numerical Simulation ◽  
Blast Wave ◽  
Wave Formation ◽  
Laser Target ◽  
Target Interaction

Investigating Pressure Wave Impact on a Surrogate Head Model Using Numerical Simulation Techniques

2019 ◽  
Author(s):  
Rohan Banton ◽  
Thuvan Piehler ◽  
Nicole Zander ◽  
Richard Benjamin ◽  
Josh Duckworth ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Blast Wave ◽  
Military Personnel ◽  
Pressure Wave ◽  
Blast Waves ◽  
Head Model ◽  
Wave Impact ◽  
Simulation Techniques

Abstract There is an urgent need to understand the mechanism leading to mild traumatic brain injury (mTBI) resulting from blast wave impact to the head. The recent conflicts in Iraq and Afghanistan have heightened the awareness of head impact injuries to military personnel resulting from exposure to blast waves [1, 2]. A blast wave generated in air is a by-product of the detonation of an explosive [3]. To date the mechanism resulting in mTBI from primary blast insult is still unclear.

An Assessment of Primary Blast Injury in Human Brains: A Numerical Simulation

2007 ◽  
Author(s):  
Mahdi Sotudehchafi ◽  
Ghodrat Karami ◽  
Mariusz Ziejewski
Keyword(s):  
Numerical Simulation ◽  
Blast Wave ◽  
Human Head ◽  
Blast Injury ◽  
Element Formulation ◽  
Pressure Waves ◽  
Arbitrary Lagrangian Eulerian ◽  
Wave Interactions ◽  
Structure Interaction ◽  
Human Brains

Most blast-related injuries happen as a result of complex pressure waves generated by the explosion. In this paper, we model the explosion from detonation and examine the blast propagation in air using Arbitrary Lagrangian–Eulerian (ALE) finite element formulation. The results of the simulation agree well with those of physical data obtained from blast wave experiments. Such results set the circumstances necessary for an examination of brain injury exposed to such situations. Thus the model will be coupled with a Fluid/Structure Interaction (FSI) algorithm to implicitly examine the blast wave interactions with a human head and to study the creation of high regions of biomechanics pressure and stress gradients.

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