ISOTHERMAL PRINCIPLE OF VIRTUAL WORK

Abstract

The isothermal principle of virtual work for a compressible liquid continuum is derived using the equilibrium thermodynamics. The conditions for a mechanical equilibrium in the volume and on the surface of a compressible liquid continuum are obtained.

Keywords

• compressible liquid continuum
• virtual work
• virtual displacement
• Lagrangian variation
• free energy density
• Gibbs relation