Motion analysis of drop impaction on a strawberry surface

Yang, Xin; Madden, L. V.; Reichard, D. L.; Fox, Robert; Ellis, Michael A.

doi:10.1016/0168-1923(91)90105-y

Cited by 46 publications

(31 citation statements)

References 13 publications

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“…Drops of a given diameter fell vertically over heights of 5, 50 and 100 cm. Incident drops released from low heights (< 40 cm) simulate canopy drip ( Yang et al ., 1991 ).…”

Section: Methodsmentioning

confidence: 99%

Dry‐dispersal and rain‐splash of brown (Puccinia recondita f.sp. tritici) and yellow (P. striiformis) rust spores from infected wheat leaves exposed to simulated raindrops

Geagea

Huber²,

Sache

1999

Plant Pathology

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Dry-dispersal and rain-splash of brown (Puccinia recondita f.sp. tritici) and yellow (P. striiformis) rust spores from infected wheat leaves exposed to simulated raindrops The dispersal of spores from lesions of brown (Puccinia recondita f.sp. tritici) or yellow (P. striiformis) rusts of wheat by impacting drops was studied. Using a generator of uniform-size drops, drops of 2´5, 3´4, 4´2 and 4´9 mm in diameter were released from rest at heights of 5, 50 and 100 cm above horizontal and primary leaves uniformly covered with sporulating lesions. Dry-dispersal and rain-splash occurred simultaneously in response to drop impaction. A coloration technique allowed separate counting of dry-dispersed and rain-splashed spores caught on slides. More spores were rain-splashed than dry-dispersed. Neither removal mechanism affected in-vitro germination of spores, which was higher in brown than in yellow rust. For both rusts, the number of both dry-dispersed and rainsplashed spores, as well as their travel distance, increased with drop diameter and fall height. The fall speed of incident drops in relation to diameter and fall height was obtained by solving numerically the equation of vertical drop motion. The number of spores removed by a given impacting drop was found to be a power function of the calculated kinetic energy of the impacting drop. Based on this experimental relationship, a simulation study showed the relevance of rain type in the removal of spores.

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“…Drops of a given diameter fell vertically over heights of 5, 50 and 100 cm. Incident drops released from low heights (< 40 cm) simulate canopy drip ( Yang et al ., 1991 ).…”

Section: Methodsmentioning

confidence: 99%

Dry‐dispersal and rain‐splash of brown (Puccinia recondita f.sp. tritici) and yellow (P. striiformis) rust spores from infected wheat leaves exposed to simulated raindrops

Geagea

Huber²,

Sache

1999

Plant Pathology

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“…Though the splash process has been studied in terms of the dispersal of plant pathogens (Yang et al, 1991;Huber et al, 1997;Saint-Jean et al, 2004), Saint-Jean et al (2004) pointed out that splash droplet generation is a complex process that cannot yet be precisely predicted theoretically. In these studies, the evaporation of splash droplets was not considered.…”

Section: Hypothesis Of Splash Droplet Evaporationmentioning

confidence: 99%

A proposal for a new forest canopy interception mechanism: Splash droplet evaporation

Murakami

2006

Journal of Hydrology

139

123

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“…Prior studies mainly focused on dispersal statistics collected at the level of crop fields or parcels [9,[11][12][13]. Investigations at the level of leaf and plant remain scarce [11,[14][15][16]. They are statistical in nature, accounting for neither drop-plant interactions nor the underlying fragmentation physics.…”

Section: Introductionmentioning

confidence: 99%

Edge effect: Liquid sheet and droplets formed by drop impact close to an edge

2018

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Asymmetric liquid sheet fragmentation is ubiquitous in nature and potentially shapes critical phenomena such as rain-induced propagation of foliar diseases. In this experimental study, we investigate the formation and fragmentation of a liquid sheet upon impact of a drop close to the edge of a solid substrate. Both the impact Weber number and the offset, the distance from the impact point to the edge, are systematically varied. Their influence on the kinematics of the liquid sheet and the subsequent statistics of droplet ejection are rationalized. Three major asymmetry scenarios are identified and linked to distinct droplet ejection patterns. Scaling laws are proposed to rationalize these scenarios based on impact parameters.

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Motion analysis of drop impaction on a strawberry surface

Cited by 46 publications

References 13 publications

Dry‐dispersal and rain‐splash of brown (Puccinia recondita f.sp. tritici) and yellow (P. striiformis) rust spores from infected wheat leaves exposed to simulated raindrops

Dry‐dispersal and rain‐splash of brown (Puccinia recondita f.sp. tritici) and yellow (P. striiformis) rust spores from infected wheat leaves exposed to simulated raindrops

A proposal for a new forest canopy interception mechanism: Splash droplet evaporation

Edge effect: Liquid sheet and droplets formed by drop impact close to an edge

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