A New Argument Against Cooling by Convective Air Eddies Formed Above Sunlit Zebra Stripes
  • Metaadatok
Tartalom: http://hdl.handle.net/20.500.12944/19999
Archívum: Közszolgálati Tudásportál
Gyűjtemény: Publikációk
Víztudományi Kar
Cím:
A New Argument Against Cooling by Convective Air Eddies Formed Above Sunlit Zebra Stripes
Létrehozó:
Pereszlényi, Ádám
Száz, Dénes
Jánosi, Imre M.
Horváth, Gábor
Téma:
cooling
convective air eddie
zebra stripe
sunlit
Természettudományok
Természettudományok/Biológiai tudományok
Tartalmi leírás:
There is a long-lasting debate about the possible functions of zebra stripes. According to one hypothesis, periodical convective air eddies form over sunlit zebra stripes which cool the body. However, the formation of such eddies has not been experimentally studied. Using schlieren imaging in the laboratory, we found: downwelling air streams do not form above the white stripes of light-heated smooth or hairy striped surfaces. The influence of stripes on the air stream formation (facilitating upwelling streams and hindering horizontal stream drift) is negligible higher than 1–2 cm above the surface. In calm weather, upwelling air streams might form above sunlit zebra stripes, however they are blown off by the weakest wind, or even by the slowest movement of the zebra. These results forcefully contradict the thermoregulation hypothesis involving air eddies.
Típus:
info:eu-repo/semantics/other
Formátum:
application/pdf
Azonosító:
nke:2045-2322
nke:10.1038/s41598-021-95105-4
nke:32123562
nke:10061823
nke:Scientific Reports
nke:11
nke:1
nke:000684831300029
nke:85111976147
nke:SCI REP
Létrehozó:
info:eu-repo/semantics/openAccess