Bulk modulus under isentropic (constant entropy ) compression/decompression thermodynamic process:
K_S = \rho \cdot \left( \frac{\partial p}{\partial \rho} \right)_S |
Isentropic bulk modulus is material property and is inverse to Isentropic Compressibility :
K_S = \frac{1}{\beta_S} |
Physics / Mechanics / Continuum mechanics / Continuum body / Bulk modulus
[ Isentropic Compressibility (βS) ]