Cavitation Dynamics at Sub-Millimeter Scale
Communication avec acte
Résumé
This paper is focused on the dynamics of cloud cavitation at Sub-millimeter scales, between 0.1 and 10 mm. A simple flow configuration consisting in a small diameter jet impacting a wall at 90° and then flowing radially between two plates is used. Cavitation is obtained in the gap between the two plates, due to the local flow acceleration. The scale of the setup was changed by varying separately the gap between the two plates, and the nozzle diameter. Observations were performed from the transparent bottom plate, using a high-speed camera and intense illumination, for various Reynolds and cavitation numbers. The analysis is focused on the variations of the cavity length and the Strouhal number based on the characteristic frequency of the flow instability.
Fichier(s) constituant cette publication
- Nom:
- LMFL_ASME_2018_BAYEUL-LAINE.pdf
- Taille:
- 976.8Ko
- Format:
- Description:
- Main article
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureLONG, Kunpeng; GE, Mingming; BAYEUL-LAINÉ, Annie-Claude; COUTIER-DELGOSHA, Olivier (AIP publishing, 2022-11)The present paper is devoted to the analysis of the various instabilities of cavitation attached to a two-dimensional (2D) profile. Time resolved stereo Particle Image Velocimetry (PIV) was conducted in a small-scale 2D ...
-
Article dans une revue avec comité de lectureThe present paper is devoted to characterizing the three-dimensional effects in a cavitating flow generated in a Venturi-type profile. Experimental measurements based on 2D3C(Two-dimensionalthree-component) stereoscopic ...
-
Communication avec acteORTEGO, Egoï; CAIGNAERT, Guy; COLAS, Frédéric; DAZIN, Antoine; COUTIER-DELGOSHA, Olivier (SHF - Société Hydrotechnique de France, 2011)Modelling of a hydro-pneumatic energy storage system is presented in this paper. Hydro pneumatic storage aims to combine the good efficiency of hydraulic energy conversion and the space flexibility of pneumatic storage. ...
-
Communication sans acteCavitation is one of the most demanding physical phenomena influencing the performance of hydraulic machines. It is therefore important to predict correctly its inception and development appearance, and quantify the ...
-
Article dans une revue avec comité de lectureThe thermodynamic effects associated with the growth and collapse of a single cavitation bubble are investigated in the present paper by an experimental approach. The study focuses on the temperature variations in the ...