Journal article 228 views 48 downloads
Effects of Flow Compressibility on Two-Phase Mixing in Supersonic Droplet-Laden Flows
International Journal of Aerospace Engineering, Volume: 2020, Pages: 1 - 13
Swansea University Author: Zhaoxin Ren
PDF | Version of Record
Copyright © 2020 Zhaoxin Ren et al. This is an open access article distributed under the Creative Commons Attribution LicenseDownload (3.01MB)
This research addresses a numerical analysis on the effects of flow compressibility on the characteristics of droplet dispersion, evaporation, and mixing of fuel and air according to the simulation of the spatially developing supersonic shear flows laden with evaporating n-decane droplets. A sixth-o...
|Published in:||International Journal of Aerospace Engineering|
Check full text
No Tags, Be the first to tag this record!
This research addresses a numerical analysis on the effects of flow compressibility on the characteristics of droplet dispersion, evaporation, and mixing of fuel and air according to the simulation of the spatially developing supersonic shear flows laden with evaporating n-decane droplets. A sixth-order hybrid WENO numerical scheme is employed for capturing the unsteady wave structures. The influence of inflow convective Mach number (Mc), representing the high-speed flow compressibility, on the twophase mixing is analyzed, in which Mc is specified from 0.4 to 1.0. It is found that the shearing vortex is compressed spatially as Mc increases, associated with the alternate distributions of compression and expansion regimes in the flow field. The flow compressibility changes not only the vortex structures but also the aerothermal parameters of the shear flows, and further influences the dispersion and evaporation of droplets. The two-phase mixing efficiency is observed to decrease as Mc increases.
Faculty of Science and Engineering
This work is partially supported by NSFC under the Grant No. 51676111 and 51806179, NSFC-NAF under the Grant No. U1730104, the project funded by China Postdoctoral Science Foundation, the Fundamental Research Funds for the Central Universities, and Basic Research Plan of Natural Science in Shaanxi Province