ID#: 23
Abstract Title: Cellular Structure of Spray Detonation
Session Title: Cellular Structure II
Session Date: 7/30/01
Session Start Time: 11:20 AM
Contributing Author: Zhdan, S.A.
Organization: Lavrentyev Institute of Hydrodynamics
Country: Russia
Authors: S.A. Zhdan, E.S. Prokhorov
Short Abstract: On the basis of the mathematical model of a two-phase two-velocity medium, detonation of a cryogenic (80 K) mixture (gaseous hydrogen-drops of liquid oxygen) was studied numerically. Transverse instability of two-dimensional reaction zone of heterogeneous detonation wave (DW) was obtained in the form of cellular structures with cell size depending on the droplet diameter. It was found that the heterogeneous DW reaches a periodic regime with a regular cellular structure only for certain discrete values of the channel width (eigenvalues of the problem). The special features of dynamics of the transverse wave and gas-dynamic parameters in the reaction zone during oneperiod are analyzed. The cell size is calculated, which increases almost linearly with increasing initial diameter of oxygen droplets.