کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
249123 502598 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and theoretical investigation of particle-laden airflow under a prosthetic mechanical foot in motion
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Experimental and theoretical investigation of particle-laden airflow under a prosthetic mechanical foot in motion
چکیده انگلیسی

This research effort was aimed at understanding how foot motion affects air transport and thus how walking affects contaminant dispersion. Particle imaging velocimetry (PIV) showed that during a rotational motion of the foot (typical footstep), a draft corner flow develops that carries particles from heel to toe. Foot contact with the floor may result in one or both of two types of reentrainment: (1) particles become airborne due to detachment from the floor, and (2) particles are first collected by the foot cover (e.g., Tyvek) and then detached from the foot into the airflow produced by the foot rotation. The airflow under the rotating foot was modeled as a rotating corner flow, and it was shown that such modeling can capture major characteristics of the airflow generated by the rotating foot and can explain how rotational foot motion contributes to reentrainment and dispersion of contaminants.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Building and Environment - Volume 45, Issue 4, April 2010, Pages 878–886
نویسندگان
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