Laser imaging of transient injection and mixing in a simulated rocket chamber
Conference Paper
Overview
Identity
Additional Document Info
View All
Overview
abstract
An experimental effort to investigate transient injection and mixing in simulated rocket chambers is described. This paper reports on the non-reacting flow experiments that were conducted to provide validation data for computational fluid dynamic (CFD) models to be used in the prediction of time-dependent non-reacting bipropellant flow morphology and mixing in the combustion chamber prior to the initiation of ignition. Transient mixing of simulated injector flow streams at ambient backpressures was measured at Purdue University in two-dimensional bench-scale injectors and chambers. Laser-induced fluorescence (LIF) of nitric oxide, seeded in the one of the simulated propellant flow streams, was used to measure the time-dependent mixture fraction in the chamber. This paper includes a detailed description of the test hardware, diagnostic systems, and test results. Comparisons of these experimental results to transient predictions from the General Equation and Mesh Solver (GEMS) CFD code used at Purdue University are presented in a companion paper at this conference.
