Improved Modeling of Drop Vaporization and Combustion in Diesel Sprays

Abstract

This program focuses on modeling the vaporization liquid drops and the penetration of the liquid phase in Diesel sprays under cold-start conditions. This work is carried out within the framework of multidimensional modeling of the physical processes in Diesel engines. In the prior reporting period, it was shown that though vaporization of the drops under warm operating conditions may be mixing controlled whereby the drop vaporization characteristic time is much shorter than the mixing time, the vaporization rate under cold-start conditions may not be assumed to be mixing controlled. Hence, drop size effects have to be considered under cold-start conditions. In this work, a drop vaporization model under high pressure conditions is included within the context of a locally homogeneous flow assumption.

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Document Details

Document Type
Technical Report
Publication Date
Jun 19, 2001
Accession Number
ADP012110

Entities

People

  • John Abraham

Organizations

  • Purdue University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Agreements
  • Air Force
  • Combustion
  • Computations
  • Diesel Engines
  • Engineering
  • High Pressure
  • Liquid Phases
  • Liquids
  • Measurement
  • Mechanical Engineering
  • Military Research
  • Predictive Modeling
  • Scientific Research
  • Technical Information Centers
  • Vaporization

Readers

  • Combustion science or combustion engineering.
  • International Relations, focusing on Korea-Africa and North Korea-South Korea relations, and Nigeria-Latin American Relations.