Document Type : Research Paper

Authors

• Sajjad Gharezi ¹
• Mohammad Mehdi Doustdar ²

¹ Mechanical Engineering Group, Faculty of Engineering, Imam Hossein Comprehensive University, Tehran, Iran

² Aerospace Engineering Group, Faculty of Engineering, Imam Hossein Comprehensive University, Tehran, Iran

Abstract

In this research, the design of a can combustion chamber for a ramjet engine, the performance of this chamber and the role of flameholder have been studied. For this purpose, after talking about ramjet engine types, some general information about the combustion chamber has been explained. Then the process of chamber designing and determining its geometry has been discussed. The dimensions of the chamber were determined by using input conditions extracted from GasTurb software as well as applying a calculation code, and the geometry of the chamber have been determined by applying calculation codes. By evaluating the obtained geometry and ensuring the accuracy of the design, simulation of combustion with non-premixed liquid phase was carried out using Fluent software. While presenting the results, the effects of size, distance and number of flameholder have been investigated. It is shown that the use of flameholder in ramjet engines is essential but the use of large flameholder is not recommended.

Keywords

• Ramjet Engine
• Combustion Chamber
• Design
• Numerical Analysis
• Flameholder

Main Subjects

• System Design, Space Propulsion and Space System Simulation