Cold tests and the dynamic characteristics of the pintle type solid rocket motor

Hyun Ko, Ji Hyung Lee, Hong Bin Chang, Woong Sup Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamic characteristics of a pintle-perturbed conical nozzle are studied theoretically, experimentally, and numerically under the condition of constant mass flow rate. Conventional one-dimensional nozzle theory in conjunction with a two-dimensional axi-symmetric flow solver calculates the internal flow parameters in the nozzle equipped with the pintle. The commercial flow solver is used based on the strongly-coupled flow equation system which is closed with one-, or two-equation turbulence models. Theoretical and numerical flow parameters are properly validated by the experiments. For the dynamic characteristics of the pintle nozzle, performance variations are examined in terms of the free volume size, the pintle actuating speed and pintle geometries. The dynamic characteristics of the pintle-perturbed nozzle largely depend on the mass flow rate through the nozzle throat which is a strong function of the reduced throat area and chamber pressure. It also depends on the pintle activation because the nozzle throat and the chamber pressure change with the extent of the pintle displacement.

Original languageEnglish
Title of host publication49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102226
DOIs
Publication statusPublished - 2013 Jan 1
Event49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, JPC 2013 - San Jose, United States
Duration: 2013 Jul 142013 Jul 17

Publication series

Name49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
Volume1 PartF

Conference

Conference49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, JPC 2013
CountryUnited States
CitySan Jose
Period13/7/1413/7/17

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Cold tests and the dynamic characteristics of the pintle type solid rocket motor'. Together they form a unique fingerprint.

  • Cite this

    Ko, H., Lee, J. H., Chang, H. B., & Yoon, W. S. (2013). Cold tests and the dynamic characteristics of the pintle type solid rocket motor. In 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference (49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference; Vol. 1 PartF). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2013-4079