Phenomenological model for determining velocity field of LPG jet in combustion chamber of direct injection S.I. engine

Bui Van Ga, Phung Xuan Tho, Nhan Hong Quang, Nguyen Huu Huong
Author affiliations

Authors

  • Bui Van Ga University of Danang
  • Phung Xuan Tho University of Danang
  • Nhan Hong Quang University of Danang
  • Nguyen Huu Huong University of Danang

DOI:

https://doi.org/10.15625/0866-7136/26/2/5692

Abstract

A phenomenological model has been established to predict the velocity distribution of LPG (Liquefied Petroleum Gas) jet in combustion chamber of spark ignition (SI) engine. A shaped coefficient \(\beta\) governing the similarity of velocity profiles of LPG jets has been defined based on the theoretical and experimental analyses of turbulent diffusion jets. The results show that \(\beta\) is constant for steady jet but it is not the case for unsteady one. The model will enable us to calculate the velocity profiles of LPG jet after ending injection. This is necessary for research of stratified combustion in direct injection LPG SI engines.

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Published

01-07-2004

Issue

Section

Research Article