Numerical investigation on influence on the regression rate of the inlet parameters in solid fuel scramjet combustor

Chang Xiu Liu*, Zhi Jun Wei, Hong Wei Chi, Li He Wang

*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

The influence on the regression rate of the inlet parameters of a solid fuel (PMMA) under supersonic cross flow has been investigated theoretically and numerically. Based on two-dimensional compressible N-S equations and species transport equations, the regression rate values were obtained by adding to the source term in the quality、momentum and energy of the fuel. With different inlet parameters, i.e., stagnation temperature and pressure, the combustion conditions were analyzed at the flame-holding zone and the constant diameter cylindrical section. Comparison between numerical results with test data showed fair agreement, indicating the correctness of the calculation model. The results show that increasing the amount of oxygen or the mixture of the fuel and oxidant can improve the combustion efficiency; the inlet mass flow of air stagnation temperature and depth of cavity has a great impact on the regression rate, then the impact of the length of cavity was slightly smaller, the impact of the stagnation pressure was minimum.

Original languageEnglish
Title of host publication50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624103032
DOIs
Publication statusPublished - 2014
Event50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014 - Cleveland, United States
Duration: 28 Jul 201430 Jul 2014

Publication series

Name50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014

Conference

Conference50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014
Country/TerritoryUnited States
CityCleveland
Period28/07/1430/07/14

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