Inhomogeneous structure in high-speed and high-number-density sprays

Noritsune Kawaharada, Daisaku Sakaguchi, Keisuke Komada, Hironobu Ueki, Masahiro Ishida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A L2F (Laser 2-Focus velocimeter) was applied for the measurements of the velocity and size of droplets in diesel fuel sprays. The micro-scale probe of the L2F has an advantage in avoiding the multiple scattering from droplets in a dense region of fuel sprays. A data sampling rate of 15MHz has been achieved in the L2F system for detecting almost all of the droplets which passed through the measurement probe. Diesel fuel was injected into the atmosphere by using a common rail injector. Measurement positions were located in the planes 15, 20, and 25 mm apart from the injector nozzle exit. Measurement result showed that the integral time scale of turbulence in size was nearly the same as the one in frequency. And the integral time scale of turbulence in velocity was about two times larger than the time scale of size and frequency.

Original languageEnglish
Title of host publicationASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Pages2647-2655
Number of pages9
EditionPARTS A, B, C, D
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 - Hamamatsu, Japan
Duration: Jul 24 2011Jul 29 2011

Publication series

NameASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
NumberPARTS A, B, C, D
Volume1

Other

OtherASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Country/TerritoryJapan
CityHamamatsu
Period7/24/117/29/11

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

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