Atomization and Dense-Fluid Breakup Regimes in Liquid Rocket Engines

Flow and Atomization Characteristics of Cryogenic Fluid from a Coaxial Rocket Injector

Title of Document: FLOW AND ATOMIZATION CHARACTERISTICS OF CRYOGENIC FLUID FROM A COAXIAL ROCKET INJECTOR Vivek Gautam, Ph.D., 2007 Directed By: Professor, Ashwani K. Gupta, Department of Mechanical Engineering High thrust-to-weight ratio and consistent performance over a range of operating conditions make cryogenic rocket engines one of the best options for space propulsion. However, future sp...

Visualization and Fundamental Analysis of Liquid Atomization by Fuel Slingers in Small Gas Turbine Engines

There are strong engineering motivations for wanting to place the design of fuel slingers and the understanding of their performance on an improved technical foundation. To date, however, there have been no studies conducted at a fundamental level of the basic physical processes involved in fuel slinger operation, or of the design and performance rules that are implied by these. We present resu...

Modeling on the Breakup of Visco-elastic Liquid for Effervescent Atomization

A primary atomization model for visco-elastic liquid is established based on the ligament formation assumption and dispersion relationships. Two linear instability analyses are used in presented paper. Both of them are involved in the primary atomization model and the calculated results are compared with published experimental data. After validation, the model is used to predict the effects of ...

Towards Controlled Liquid Atomization

The present study discuss controlling mechanisms of air-blast atomization and the prospect of external triggering for enhancing atomization quality of a planar liquid sheet. The investigation builds on previous experimental evidence provided by flow visualization of 2-D liquid sheets formed between two co-flowing air streams at variable velocities, and is particularly aimed to improve our under...

High-Fidelity Simulations of Primary Breakup and Impinging Jet Atomization