Numerical Investigation of Hybrid Rocket Nozzle Heat Transfer and Test Validation

Sule Ozturk, Ibrahim Ozkol, M. Arif Karabeyoglu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Rockets are the most convenient way to reach space. Rockets accelerate the molecules formed as a result of combustion in the rocket through a nozzle and throws it out, thus creating thrust. The thrust produced by energized and accelerated hot gas expelling through nozzle. Rockets are categorized by ways of putting energy to these particles. A rocket motor is an example of the energy transformation system. This energy transformation can be done by accelerating particle using an electric field, nuclear energy, or heating particles by chemical reactions. With high safety and reliability, hybrid rocket engines as an example of chemical rockets can be better alternative of bi-liquid propulsion systems in terms of development and production cost. The aim of this study is to investigate the nozzle behavior in a small-scale and low-cost hybrid rocket engine in oxygen rich environment under thermal motor is designed, developed, and tested. Theoretically the conjugate gradient method with adjoin problem for function estimation iterative technique is used to solve the Inverse Heat Conduction Problem (IHCP) to estimate heat flux and internal wall temperature of the nozzle. The convective heat transfer coefficient is calculated using Bartz equation. The results are compared with the test data.

Original languageEnglish
Title of host publicationProceedings of 10th International Conference on Recent Advances in Air and Space Technologies, RAST 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350323023
DOIs
Publication statusPublished - 2023
Event10th International Conference on Recent Advances in Air and Space Technologies, RAST 2023 - Istanbul, Turkey
Duration: 7 Jun 20239 Jun 2023

Publication series

NameProceedings of 10th International Conference on Recent Advances in Air and Space Technologies, RAST 2023

Conference

Conference10th International Conference on Recent Advances in Air and Space Technologies, RAST 2023
Country/TerritoryTurkey
CityIstanbul
Period7/06/239/06/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • combustion
  • heat transfer
  • hybrid rockets

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