The Numerical Study of Compressed-Air Atomizer for Spark- ignited Jet Fuel Engine

There is increasing interest in the aircraft engine with spark ignition, which is capable of working using jet and diesel fuel. The reason is that the engines with spark ignition have a lower specific weight unlike diesel engines. The working process of the spark ignition engine which can operate on heavy fuels at the compression ratio of a base engine was described in our previous works. The operating cycle of this engine is implemented by the use of a compressed-air atomizer (CAA) in combination with a spray-guided concept. An ignition system has a traditional design and discharge parameters characteristic of gasoline engines. This paper presents a zero-dimensional mathematical model of the processes occurring in a CAA. The model verification is presented.