#### EOS_POLYNOMIAL

###### SPH
*EOS_POLYNOMIAL
eosid, $A$, $B$, $C$
##### Parameter definition
VariableDescription
eosid Unique EOS identification number
$A$ Polynomial coefficient
$B$ Polynomial coefficient
$C$ Polynomial coefficient
##### Description

This is a polynomial equation-of-state that currently only works with $\gamma$SPH particles. Note that the linear bulk modulus, $K$, is determined from the elastic properties in the material command.

$p = K \mu + A \mu^2 + \frac{B + C \mu}{1 + \mu} e$

where $e$ is the specific internal energy per unit volume and $\mu$ is a measure of the volumetric compression.

$\displaystyle{\mu = \frac{\rho}{\rho_0} - 1}$