Spray Modelling for Multifuel Engines
Abstract
The present project deals with the fuel spray modelling in multifuel engines using the droplet behaviour approach. The multifuel engine is able to burn different types of fuel having various physical and chemical properties, either clear or mixture with arbitrary mixing ratio. Analysis of the physical and chemical properties affecting mixture creation and combustion have been carried out to define the parameters affecting the accuracy of spray modelling. It is found that the spray is affected by air flow field, heat transfer, fuel atomization, droplet behaviour, fuel evaporation and chemical kinetics. Solution of the flow field and experimental results of heat transfer have been obtained. Experiments were performed in a set up that allowed variation of the swirl chamber geometry and operating conditions to evaluate the instantaneous surface heat transfer under firing conditions. The instantaneous heat flux was determined taking into consideration the instantaneous composition of products and variation of specific heats. A generalized expression has been established for the calculation of heat transfer to the chamber wall under variable design and operating conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1980
- Accession Number
- ADA095110
Entities
People
- M. M. Elkotb