Turbulent flow characteristics of the cleaning wind in combine harvester

Yuko Ueka, Masami Matsui, Eiji Inoue, Ken Mori, Takashi Okayasu, Muneshi Mitsuoka

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The flight of separated straws is thought to affect the cleaning wind of a combine harvester. To comprehend the turbulent flow characteristics of the cleaning wind and its passage through the grains, the cleaning wind velocity is measured by particle image velocimetry and laser Doppler velocimetry. The flow of the cleaning wind is blocked by the grains, and therefore the distribution of wind velocity changes. It is found that the energy loss of the cleaning wind is not a result of turbulent flow. The wall friction and the pressure change observed as a result of the shape and the friction loss in the grains are the main considerations while calculating the energy loss of the cleaning wind in combine harvester.

Original languageEnglish
Pages (from-to)102-106
Number of pages5
JournalEngineering in Agriculture, Environment and Food
Volume5
Issue number3
DOIs
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Food Science
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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