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Area Physics for electrotechnology / Thermodynamics

IEV ref113-04-53

Symbol
α

en
thermal diffusivity
quantity α= λ ρ c p MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeg7aHjabg2da9m aalaaabaGaeq4UdWgabaGaeqyWdiNaaGjcVlaadogadaWgaaWcbaGa amiCaaqabaaaaaaa@4290@ , where λ is thermal conductivity, ρ is mass density, and cp is specific heat capacity at constant pressure

NOTE The coherent SI unit of thermal diffusivity is square metre per second, m2/s.


fr
diffusivité thermique, f
grandeur α= λ ρ c p MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeg7aHjabg2da9m aalaaabaGaeq4UdWgabaGaeqyWdiNaaGjcVlaadogadaWgaaWcbaGa amiCaaqabaaaaaaa@4290@ , où λ est la conductivité thermique, ρ est la masse volumique et cp est la capacité thermique massique à pression constante

NOTE L'unité SI cohérente de diffusivité thermique est le mètre carré par seconde, m2/s.


ar
الانتشار الحرارى

de
thermische Diffusionsfähigkeit, f

es
difusividad térmica

fi
lämpötilan tasoittumiskerroin

it
diffusività termica

ja
熱拡散率

pl
dyfuzyjność cieplna

pt
difusividade térmica

sv
termisk diffusivitet

zh
热扩散率

Publication date: 2011-04
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