Shock waves

Development of a wider-scope thermochemical code

Theory of turbulence augmentation across hypersonic shock waves in air

The interaction between a weakly turbulent free stream of air and a hypersonic shock wave is investigated theoretically by using linear interaction analysis (LIA). The perturbation-free jump conditions across the shock are computed using Combustion …

Combustion Toolbox: A MATLAB-GUI based open-source tool for solving combustion problems

As a first step towards the development of a wider-scope thermochemical tool, in this work we present a thermochemical code with application to gaseous combustion problems recently implemented by the authors in MATLAB and Python. The MATLAB version …

Theory of turbulence augmentation across hypersonic shock waves

The interaction between a weakly turbulent free stream and a hypersonic shock wave is investigated theoretically by using linear interaction analysis (LIA). Modified Rankine-Hugoniot jump conditions that account for dissociation and vibrational …

Development of an open-source thermochemical code: Fundamentals and application to shock turbulence interaction problems in the hypersonic regime

In this seminar, we present the development of an in-house thermochemical code (hereafter Combustion-Toolbox) that can be applied to gaseous combustion problems. The code stems from the minimization of the Gibbs–Helmholtz free energy by using …

Theory of turbulence augmentation across hypersonic shock waves

Oral presentation in the 74th Annual Meeting of the American Physical Society’s Division of Fluid Dynamics

Combustion Toolbox is now available for testing

In the poster presented at the XI Mediterranean Combustion Symposium we introduced our first steps toward the development of an open-source wider-scope thermochemical tool. It’s been a while since then and we’re excited to say that Combustion-Toolbox (CT) is now available for testing.

Thermochemical effects of gas dissociation and vibrational excitation on hypersonic shock waves interacting with weak turbulence

The interaction between a weakly turbulent free stream and a hypersonic shock wave is investigated theoretically by using linear interaction analysis (LIA). The formulation is developed in the limit in which the thickness of the thermochemical …

Effect of equivalence ratio fluctuations on planar detonation discontinuities

We propose a linear asymptotic theory to describe the propagation of planar detonation fronts through heterogeneous mixtures of reactive gases consisting of random fluctuations in the fuel mass fraction. The analysis starts with the derivation of the …