activity
20202026
most citedReceptivity of the turbulent precessing vortex core: synchronization experiments and global adjoint linear stability analysis

28 citations · 60 across the 8 of their papers we have counts for

collaborators

8 papers

physics.flu-dyn2026

Analytic study of the continuous spectrum of three-dimensional weak shock layers

Vassilis Theofilis

Three-dimensional linear stability of a weak, compressible shock layer is analyzed using exact Reynolds-number-independent forms of the governing base flow and linear stability equ…

physics.flu-dyn2026

Kinetic Linear Stability Theory for High-Speed Compressible Flows: A High Performance Computing Framework

Irmak Taylan Karpuzcu, Deborah Levin, Vassilis Theofilis

Shock waves in high-speed compressible flows contain finite-thickness, high-gradient regions where the continuum assumption becomes questionable and translational non-equilibrium a…

physics.flu-dyn2025

A Kinetic Study of Hypersonic Boundary Layer Second Mack Mode Instabilities

Mert Senkardesler, Irmak T. Karpuzcu, Deborah A. Levin +1

A flat-plate laminar boundary layer is simulated at a free stream Mach number of 6 and unit Reynolds number m using the Direct Simulation Monte C…

physics.flu-dyn2025★ 5 cited

Biglobal resolvent analysis of separated flow over a NACA0012 airfoil

Laura Victoria Rolandi, Luke Smith, Michael Amitay +2

The effects of Reynolds number across , , , and on separated flow over a two-dimensional NACA0012 airfoil at an angle of attack of are inv…

physics.flu-dyn2024★ 3 cited

On linear stability of supersonic flow over a short compression corner at large ramp angles

Irmak T. Karpuzcu, Vassilis Theofilis, Deborah A. Levin

Linear stability of supersonic flow over a short compression corner with ramp angles 30 and 42 is investigated using Direct Simulation Monte Carlo (DSMC) and Linear Stability Theor…

physics.flu-dyn2021★ 24 cited

Linear stability analysis of hypersonic boundary layers computed by a kinetic approach: A semi-infinite flat plate at Mach 4.5 and 9

Angelos Klothakis, Helio Quintanilha, Saurabh S. Sawant +3

Linear stability analysis is performed using a combination of two-dimensional Direct Simulation Monte Carlo (DSMC) method for the computation of the basic state and solution of the…

physics.flu-dyn2021

Linear Instability of Shock-Dominated Laminar Hypersonic Separated Flows

Saurabh S. Sawant, Ozgur Tumuklu, Vassilis Theofilis +1

The self-excited spanwise homogeneous perturbations arising in shock-wave/boundary-layer interaction (SWBLI) system formed in a hypersonic flow of molecular nitrogen over a double…

physics.flu-dyn2020★ 28 cited

Receptivity of the turbulent precessing vortex core: synchronization experiments and global adjoint linear stability analysis

J. S. Müller, F. Lückoff, P. Paredes +2

The Precessing Vortex Core (PVC) is a coherent structure that can arise in swirling jets from a global instability. In this work, the PVC is investigated under highly turbulent con…