Spray Diagnostics

A spray can only do its job well if it has the necessary properties for the application. This includes, for example, that the droplet sizes and droplet velocities are in a certain range or that the liquid is distributed evenly across the spray cross-section. At our chair we have a variety of measurement techniques for the characterisation of sprays.These include high-speed cameras with various lenses, such as a far-field microscope, and Particle-Image-Velocimetry to determine the velocity distribution in the spray, Particle- Doppler-Anemometry to determine droplet sizes and velocities, fluorescence techniques to determine the spray density or infrared thermography to characterise the spray/wall-interaction. In addition, we have a conditionable, optically accessible chamber in which experiments can be carried out under negative and positive realtive pressure and at high temperatures.

Sprayanalyse auf Basis von Schattenaufnahmen 

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Druckkammer mit variablen optischen Zugängen und eine Verteilung der Tropfen Ohnesorge-Zahl über der Reynolds-Zahl welche aus PDA-Messungen ermittelt wurden.

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Flüssigkeitsverteilung und Geschwindigkeitsverteilung in einem Sprühstrahl; basierend auf Laserlichtschnitt-Messungen und PIV-Messungen.

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Letzte Änderung: 07.03.2023 - Ansprechpartner: Webmaster