Kerosene combustion in a supersonic flow

Supersonic Combustion Flow Visualization at Hypersonic Flow

Currently, a new generation of scientific aerospace vehicles, using advanced hypersonic airbreathing propulsion based on supersonic combustion technology, is in development at several research centers [1]. The 14-X Brazilian Hypersonic Aerospace Vehicle, Figure 1, designed by Rolim et al. [2], at the Prof. Henry T. Nagamatsu Laboratory of Aerothermodynamics and Hypersonics, Figure 2, at the Ins...

Supersonic Combustion Ramjet Research

A flamelet-based model for supersonic combustion

The renewed interest in high-speed flight has recently demonstrated the need for the development of hypersonic air-breathing propulsion systems, i.e., in which the ambient air is used as oxidizer. These systems have long been recognized as the most well-suited for hypersonic propulsion. Although a traditional ramjet is most appropriate for supersonic speeds (Mach 3 to 5), hypersonic speeds (Mac...

Experimental Investigations of Supersonic Flow around a Long Axisymmetric Body

A series of supersonic wind tunnel tests on an ogive-cylinder body were performed to investigate the pressure distribution, the boundary layer profiles, and the flow visualization at various angles of attack. All tests were conducted in the trisonic wind tunnel of the Imam Hossein University. The theoretical shock angle at different model positions compared well with those we obtained via Schi...

Modeling Soot Formation in Kerosene and Fuel Surrogates Combustion

This article presents an analysis of soot formation in kerosene and fuel surrogates. This analysis is based on a detailed chemical mechanism for the combustion of single component fuels such as n-heptane, isooctane, benzene, and toluene. The chemical mechanism describes the formation of polycyclic aromatic hydrocarbons (PAH) up to cyclo[cd]pyrene and is shown to reproduce the formation of soot ...