Direct Numerical Simulation of a Shocked Helium Jet

Cloutman, L D

Lawrence Livermore National Laboratory

关键词: Diffusion;    Fluorescence;    Air;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Simulation;   

DOI  :  10.2172/15005357
RP-ID  :  UCRL-ID-147761
RP-ID  :  W-7405-ENG-48
RP-ID  :  15005357

美国|英语

来源: UNT Digital Library

【 摘 要 】

We present direct numerical simulations of a shock tube experiment in which a cylindrical laminar jet of helium doped with biacetyl is injected into air and subjected to a weak shock wave. Computed species distributions in a planar cross section of the jet are compared to planar laser-induced fluorescence (PLIF) images produced by the experiment. The calculations are in excellent agreement with the experimental images. We find that differential diffusion of species is an important feature of this experiment.