Skip to Main content Skip to Navigation
Theses

Contribution to numerical simulation analysis of the flow in the ram accelerator in Subdetonative combustion mode

Abstract : The purpose of this work is to examine in details the flow field characteristics of the thermally choked ram accelerator using five step kinetic reaction mechanisms. The results from the simulations are compared with experimental values from representative experiments at the University of Washington 38-mm-bore facility. The data that were used for comparison with theory were derived from experiments performed in a 16-m-long tube with CH4/O2/N2 propellant mixtures at pressures on the order of several MPa. The data derived from these CFD calculations were used to implement a one-dimensional computer code which has been developed to predict the thrust in the thermally chocked combustion mode and is aimed at providing data over a wide range of initial pressures, where the steady state calculation is no longer valid and the real gas effects must be accounted for. This code includes both steady and unsteady state calculations, using several equations of state. The predicted thrust and velocity agree well with experimental values. The code, which requires simple data input and very low computer capabilities, provides an easy and rapid access to the prediction of the ram accelerator performance in the thermally choked combustion regime, over a wide range of mixture compositions and fill pressures.
Document type :
Theses
Complete list of metadata

Cited literature [146 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00491860
Contributor : Bénédicte Carouge Connect in order to contact the contributor
Submitted on : Monday, June 14, 2010 - 3:25:45 PM
Last modification on : Wednesday, October 20, 2021 - 3:22:04 AM
Long-term archiving on: : Tuesday, September 14, 2010 - 8:12:53 PM

Identifiers

  • HAL Id : tel-00491860, version 1

Collections

Citation

Tarek Bengherbia. Contribution to numerical simulation analysis of the flow in the ram accelerator in Subdetonative combustion mode. Engineering Sciences [physics]. ISAE-ENSMA Ecole Nationale Supérieure de Mécanique et d'Aérotechique - Poitiers, 2009. English. ⟨tel-00491860⟩

Share

Metrics

Les métriques sont temporairement indisponibles