3 papers
physics.flu-dyn2026
Lagrangian Phase-Lag and Geometric Precedence in Turbulent Vortex Stretching
Khalid Saqr
This study investigates the causal timeline of vortex stretching in high-Reynolds-number turbulence () using Lagrangian tracking in direct numerical simu…
physics.flu-dyn2025
Spectral spacetime-geometry of Womersley flow
Khalid M. Saqr
We revisit the classical Womersley solution for pulsatile viscous flow in a circular tube and reconstruct its full time-domain geometry from first principles. By combining harmonic…
physics.flu-dyn2025
Derivation of the Gromeka Acceleration Vector for Dimensionless Womersley Flow
Khalid Saqr
This manuscript presents an analytical and theoretical investigation of the Gromeka acceleration field in a dimensionless Womersley flow, derived through the exact solution of the…