Beltrami States for Compressible Barotropic Flows
B. K. Shivamoggi, G. J. F. van Heijst

TL;DR
This paper derives Beltrami states for compressible barotropic flows by energy minimization under helicity constraints and explores their Hamiltonian structure.
Contribution
It introduces a method to identify Beltrami states in compressible flows and sketches their Hamiltonian formulation, extending previous work on incompressible flows.
Findings
Beltrami states characterized for compressible barotropic flows
Hamiltonian basis for these states outlined
Potential implications for flow stability and structure
Abstract
Beltrami states for compressible barotropic flows are deduced by minimizing the total kinetic energy while keeping the total helicity constant. A Hamiltonian basis for these Beltrami states is also sketched.
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