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article/chapitre/communication
W. Healy ; J. Hartley ; S. Abdel-khalik | 1996article/chapitre/communication
K. Park ; A. Watkins | 1996This paper describes the testing of several spray/wall impaction models developed by the authors and colleagues. A previously unpublished model is described in detail. Most models of spray impaction onto solid surfaces have previously been asses[...]article/chapitre/communication
M. Sawyer ; S. Jeter ; S. Abdel-khalik | 1997The characteristics of a single stream of monodispersed water droplets impacting a horizontal, upward facing flat surface have been investigated. The objective was to determine the effect of droplet diameter, impact frequency and impact velocity[...]article/chapitre/communication
S. Stewart ; S. Grinsphun ; AL Et | 1995article/chapitre/communication
S. Grinshpun ; K. Willeke ; AL Et | 1997The collection efficiency of liquid impingers was studied experimentally as a function of the sampling flow rate with test particles in the bacterial size range. Three impingers were tested: two All-Glass Impingers (AGI-4 and AGI-30), widely use[...]article/chapitre/communication
J. Bernardin ; C. Stebbins ; I. Mudawar | 1997The present study explored the effects of surface roughness on droplet impact and ensuing heat tranfer over broad ranges of Weber number and surface temperature.article/chapitre/communication
On développe un modèle de groupe pour des aérosols impactants. Ce modèle utilise des groupes de gouttelettes pour représenter l'aérosol, il emploie l'approche Lagrangienne pour tracer le mouvement des groupes et considère la dispersion turbulent[...]article/chapitre/communication
A. Juozaitis ; K. Willeke ; S. Grinshpun ; AL Et | 1994article/chapitre/communication
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J. Bernardin ; C. Stebbins ; I. Mudawar | 1997Still and high-speed photographic techniques were used to record the impact behavior of water droplets on a hot aluminum surface. Drop velocity and surface temperature were two important parameters governing both the impact behavior and ensuing [...]article/chapitre/communication
This study utilizes a high-speed charge coupled device (CCD) camera as the data acquisition system to simultaneously measure the pressure and flow field. The measurement system can be triggered by an external optical sensor, to obtain the free s[...]article/chapitre/communication
C. Tsai | 1995This study is to examine heavy solid particle loading effect on the collection efficiency of different impaction surface designs.article/chapitre/communication
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B. Asgharian ; L. Zhang ; AL Et | 1997Collection efficiencies of two types of impactor nozzles were calculated for spherical particles and fibers. The flow field through the impactor was calculated for Reynolds numbers of 100 and 1100 using a finite element method. Equations of moti[...]