Accession Number:

ADA533330

Title:

Epitrochoid Power-law Nozzle Concept for Reducing Launch Architecture Propulsion Costs

Descriptive Note:

Technical paper

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA

Personal Author(s):

Report Date:

2010-11-16

Pagination or Media Count:

15.0

Abstract:

A description is presented of a new and original 3-dimensional nozzle class incorporating modular thrust cells, the Epitrochoid Powerlaw EP Nozzle. A parametric design has been defined that uses epitrochoid planar curves for the nozzle cross-section in conjunction with a power law relationship between the primary radius and the nozzles axial length, resulting in a radially lobed nozzle configuration. Attributes are described which potentially make the nozzle attractive from a cost and performance perspective in comparison to more conventional nozzle types. The current design approach is described here in detail. Ideal performance of the nozzle is defined. A design reference mission has been selected for nozzle optimization studies and is discussed. Potential research directions for future numerical and physical experiments are discussed.

Subject Categories:

  • Pumps, Filters, Pipes, Tubing, Fittings and Valves

Distribution Statement:

APPROVED FOR PUBLIC RELEASE