About: Thermal Diffusivity

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An Entity of Type : http://qudt.org/schema/qudt/QuantityKind, within Data Space : foodie-cloud.org, foodie-cloud.org associated with source document(s)

Attributes	Values
type	Quantity Kind
label	Thermal Diffusivity (en)
isDefinedBy	QUDT Quantity Kind Vocabulary Version 2.1.29
has broader	Area per Time
Description	In heat transfer analysis, thermal diffusivity (usually denoted \(\alpha\) but \(a\), \(\kappa\),\(k\), and \(D\) are also used) is the thermal conductivity divided by density and specific heat capacity at constant pressure. The formula is: \(\alpha = {k \over {\rho c_p}}\), where k is thermal conductivity (\(W/(\mu \cdot K)\)), \(\rho\) is density (\(kg/m^{3}\)), and \(c_p\) is specific heat capacity (\(\frac{J}{(kg \cdot K)}\)) .The denominator \(\rho c_p\), can be considered the volumetric heat capacity (\(\frac{J}{(m^{3} \cdot K)}\)). (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/sc...dt/applicableUnit	Square centimetres per second Square Foot per Hour Square Foot per Second Square Inch Per Second Square metres Hertz square metre per second Square Millimetre Per Second
http://qudt.org/schema/qudt/dbpediaMatch	dbpedia:Thermal_diffusivity
http://qudt.org/sc...asDimensionVector	http://qudt.org/vocab/dimensionvector/A0E0L2I0M0H0T-1D0
http://qudt.org/sc...ormativeReference	http://en.wikipedia.org/wiki/Thermal_diffusivity
http://qudt.org/sc...t/latexDefinition	\(a = \frac{\lambda}{\rho c_\rho}\), where \(\lambda\) is thermal conductivity, \(\rho\) is mass density and \(c_\rho\) is specific heat capacity at constant pressure. (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/schema/qudt/latexSymbol	\(\alpha\) (http://qudt.org/schema/qudt/LatexString)
http://qudt.org/schema/qudt/symbol	a

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