Coalescence (physics)

Nkọwa nke njikọta nke mmiri abụọ, ụfụfụ, ma ọ bụ ụmụ irighiri ihe iji mepụta otu ihe.

Coalescence bụ usoro nkè mmiri abụọ ma ọ bụ karịa, ụfụfụ, ma ọ bụ ụmụ irighiri ihe na-agwakọta n'oge kọntaktị iji mepụta otu nwa nwanyị, ụfị, ma ọ dị. Coalescence na-egosipụta onwé ya site na microscopic scale na meteorology ruo na macroscopic scale in astrophysics. Dịka ọmụmaatụ, a na-ahụ ya na mmepụta nkè mmiri ozuzo ya na mmepụta mbara ala na kpakpando.

Na meteorology, ọrụ ya dị oké mkpa n'ịmepụta mmiri ozuzo. Ka mmiri na-ebu mmiri na mmiri na-agbadata n'ime igwe ojii, ha na-agbakọta ma na-agwakọta iji mepụta mmiri buru ibu. Mgbè mmiri na-aghọ nnukwu nke na ikuku na-aga n'ihu, ha na-amalite ịda dị ka mmiri ozuzo. Na mgbakwunye na usoro a, enwèrè ike ịgha ice na igwe ojii site na elu dị elu, ma ọ bụ site na elu igwe ojii ruru mbelata ogo Celsius iri anọ (-40 ), ma ọ bụ sitere na igwe ojii nke ice si na igwe ojii cirrus.

Ultrasound dị elu na ọgwụ na-etinye obere ikuku màkà foto na ọgwụgwọ. A na-amụ coalescence nke microbubbles nkè ihe na-emegide ultrasound iji gbochie embolies ma ọ bụ iji gbochie arịa tumor.^[1]^[2]

Na physics igwe ojii, usoro isi nkè mgbagwoju anya bụ ọsọ ọsọ dị íchè íchè n'etiti mmiri. Ọsọ ọsọ bụ ọrụ nké nha droplet. Ihe ndị ọzọ na-ekpebi ọnụego mgbagwoju ányà bụ ọnụ ọgụgụ droplet na turbulence.^[3]

Hụkwa

Accretion (astrophysics)
Accretion (meteorology)
Usoro Bergeron
Ihe na-eme ka obi sie ya ike

Edensibia

↑ (2004) "Ultrasound-induced microbubble coalescence". Ultrasound in Medicine & Biology 30 (10): 1337–1344. DOI:10.1016/j.ultrasmedbio.2004.08.008. PMID 15582233.
↑ (2010) "Microfoam formation in a capillary". Ultrasonics 50 (2): 260–268. DOI:10.1016/j.ultras.2009.09.028. PMID 19875143.
↑ (2012) "Turbulent effects on the microphysics and initiation of warm rain in deep convective clouds: 2-D simulations by a spectral mixed-phase microphysics cloud model". Journal of Geophysical Research: Atmospheres 117 (D06): D06220. DOI:10.1029/2011JD016603.

Njikọ mpụga

American Meteorological Society, Glossary of Meteorology: Coalescence
Schlumberger Oilfield Glossary E debere Wayback Machine
Usoro Bergeron
The Coalescence of Bubbles - A Numerical Study - E debere ya na Wayback Machine

[1] (2004) "Ultrasound-induced microbubble coalescence". Ultrasound in Medicine & Biology 30 (10): 1337–1344. DOI:10.1016/j.ultrasmedbio.2004.08.008. PMID 15582233.

[2] (2010) "Microfoam formation in a capillary". Ultrasonics 50 (2): 260–268. DOI:10.1016/j.ultras.2009.09.028. PMID 19875143.

[3] (2012) "Turbulent effects on the microphysics and initiation of warm rain in deep convective clouds: 2-D simulations by a spectral mixed-phase microphysics cloud model". Journal of Geophysical Research: Atmospheres 117 (D06): D06220. DOI:10.1029/2011JD016603.

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