(UM)
  • Proučavanje zračnih struja raspršivača vizualizacijskom analizom
    Berčič, Stane ; Lakota, Miran ; Širok, Brane
    For the investigation of spraying jets it is no longer enough to measure only their velocity, direction and air capacity. Besides the aforementioned factors, the quality of spray deposition is ... affected also by turbulence intensity and its influence on dynamics of movements of leaves. This paper describes a new method for determining the said dynamics by means of visualisation. The methods involves a numerical analysis based on changes of light and dark fields in the visual signal recorded by VHS video camera. At various turbulence in a vineyard and in an orhard, significant differences in time domain and in frequency domain obteined by Fast Fourier Transformation (FFT) were established.
    Vir: Aktualni zadaci mehanizacije poljoprivrede : zbornik radova = Actual tasks on agricultural engineering : collection of paper (Str. 185-191)
    Vrsta gradiva - prispevek na konferenci
    Leto - 1997
    Jezik - slovenski
    COBISS.SI-ID - 1242412

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