Project Title:

A Coupled Jet Embedding And Eulaerian-Lagrangian Approach To Simulate

11.06-2620
Project Title:A Coupled Jet Embedding And Eulaerian-Lagrangian Approach To Simulate
Reactive Fluid Mechanics In Liquid Rocket Engines
Company:CHAM of North America, Incorporated
Huntsville, AL 35816
Principal Investigator:Przekwas, A. J. and Tam, L. T.

Abstract:

An analytical model and a computer code for the detailed simulation of three-phase
flows in liquid rocket thrust chambers is proposed.  The model describes behavior
of the liquid, dispersed and gaseous phases in a most effecient form.  The continuous
gas-phase flow and combustion are described in Eulerian coordinates; the spray flow,
droplet evaporation and combustion processes are simulated in a grid free Lagrangian
frame.  The liquid-jet flow and atomization process is described in an embedded adaptive
grid following the jet shape.  The Eulerian-Lagrangian approach is already well established
and used routinely at CHAM for research and design calculation studies.  The jet
embedding approach to simulate fully coupled liquid jet flow and atomization with
evaporating spary flow and with the reactive gas motion has been recently developed
at CHAM by the authors of this proposal.  Initial studies with the present model
show promising applications to comprehensive simulation of multi-injector fuelled
thrust chambers.  The Phase I work plan includes modification of the existing REFLAND2D-SPRAY
code to incorporate the liquid jet embedding technique; model sensitivity and verification
studies and the modified SOURCE code delivery