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首页> 外文会议>ASME international mechanical engineering congress and exposition;IMECE2011 >DEVELOPMENT OF VISUALIZATION METHODS OF AIR FLOW INTO PERFORATING PROJECTILE WOUNDS
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DEVELOPMENT OF VISUALIZATION METHODS OF AIR FLOW INTO PERFORATING PROJECTILE WOUNDS

机译：射孔弹射流可视化方法的发展

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In ballistic wounds the tissue along the path of the projectile experiences transient displacements resulting in what is known as the temporary wound cavity. The motion of the tissue caused by the formation of the temporary cavity gives rise to a low pressure pull that sucks air and airborne debris into the wound. The latter could be a significant mechanism for bacterial and particulate contamination of projectile wounds that should be explored in detail since it can lead to infection or delayed wound healing. In order to better understand the flow of air into the temporary cavity and how it relates to particulate entry into the wound, a methodology to visualize the air flow into perforating projectile wounds was proposed and explored using an extremity surrogate. The proposed approach was only intended for qualitative observations and comparisons and was implemented in a very rudimentary fashion to determine its usefulness. The experimental setup used and visualization results corresponding to the air flow at the entry and exit regions of perforating projectile wounds using 0.45-in and 0.22-in caliber round nose lead projectiles and a PERMA-gel lower extremity surrogate are presented.
机译：在弹道伤口中，沿着弹丸路径的组织会经历短暂的位移，从而导致所谓的临时伤口腔。由临时腔的形成引起的组织运动引起低压拉动，该低压拉动将空气和空气中的碎屑吸入伤口。后者可能是弹丸伤口细菌和微粒污染的重要机制，应仔细研究，因为它可能导致感染或伤口愈合延迟。为了更好地了解进入临时腔的空气流及其与微粒进入伤口的关系，提出了一种方法来可视化进入射孔弹丸伤口的空气流，并使用了末端替代技术。提议的方法仅用于定性观察和比较，并且以非常简陋的方式实施，以确定其有用性。使用0.45英寸和0.22英寸口径圆形鼻铅弹和PERMA-gel下肢替代物，给出了使用的实验装置和可视化结果，这些结果对应于穿孔弹丸伤口入口和出口区域的气流。

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