Numerical simulations of nanosecond discharge in gas-dynamic flows

Direct Numerical Simulations of Gas-Liquid Multiphase Flows

Large numerical simulations of turbulent rotating flows

Scientific context Rotation, as measured by the Rossby number (the ratio of the rotation period to the eddy turn over time) is present in astroand geophysics. For example, the high Reynolds number large scales of atmospheric and oceanic flows are affected by the rotation of the Earth; the Rossby number Ro = U0/[L0Ω] for mid-latitude atmospheric synoptic scales is Ro ≈ 0.1 whereas in the solar c...

Numerical Study on the Gas Temperature of Microwave Discharge Rare Gas Plasmas as a Rarified Gas Dynamic System

We report numerical simulation of gas temperature of microwave discharge plasma of rare gases by weighted-DSMC method. Our numerical simulation showed that neutral particles are heated by collisions with ions. It is found that the average temperature becomes higher for heavier rare gas discharge plasmas, which agrees with our previous experiments. It is also found that ions are accelerated by a...

A Numerical Study of the Sour Gas Reforming in a Dielectric Barrier Discharge Reactor

In this paper, using a one-dimensional simulation model, the reforming process of sour gas, i.e. CH4, CO2, and H2S, to the various charged particles and syngas in a dielectric barrier discharge (DBD) reactor is studied. An electric field is applied across the reactor radius, and thus a non-thermal plasma discharge is formed within the reactor. Based on the space...

Numerical studies of nitric oxide formation in nanosecond-pulsed discharge-stabilized flames of premixed methane/air.

A simulation is developed to investigate the kinetics of nitric oxide (NO) formation in premixed methane/air combustion stabilized by nanosecond-pulsed discharges. The simulation consists of two connected parts. The first part calculates the kinetics within the discharge while considering both plasma/combustion reactions and species diffusion, advection and thermal conduction to the surrounding...