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@wikipediaFluid Compressibility is a function of temperature 

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and pressure 
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:

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c = c(T, p)

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There is no universal analytical model for Fluid Compressibility but there is a good number of approximations which can be effectively used in engineering practice.

Approximations

Incompressible
fluidCompressible
fluid
CompressibilityFull-Range Proxy ModelReal Gas
Slightly compressible fluid
Strongly Compressible Fluid
Ideal Gas
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c(T, p) = 0
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c(T, p) = c_0 = \rm const

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c(T, p) = \frac{1}{p}

Van der Waals equation

Redlich-Kwong equation
Soave modification of Redlich-Kwong
Peng–Robinson equation of state

Peng–Robinson-Stryjek-Vera equations (PRSV)

Virial equation 
BWR equation 



See also

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Physics / Mechanics / Continuum mechanics / Fluid Mechanics / Fluid Statics / Fluid Compressibility

[Compressibility] [Multi-phase compressibility @model]


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Full-Range Proxy Model


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c(T, p) = \frac{c_0(T,p)}{1+c_0(T,p) \cdot p}



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\rho(T, p) = \rho_0

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(T

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\frac{

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1+c_0(T,

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p

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)

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 \, p}{1+c

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_0

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(T,

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,

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p_0}

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Z(T, p) = \frac{p}{p_0} \cdot \frac{1+c_0(T, p) \, p_0}{1 + c_0(T,p) \, p}

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See also

Physics / Mechanics / Continuum mechanics / Fluid Mechanics / Fluid Statics / Fluid Compressibility

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