The role of time in single drop splash on thin film
This paper reports on an experimental study of the impact of water drops on thin liquid films. The morphology of the impact was studied by still photography, and quantitative results were obtained by a proper image analysis technique. The time evolution of various parameters like the crown diameter,...
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| Veröffentlicht in: | Experiments in fluids 2004-06, Vol.36 (6), p.888-900 |
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| creator | COSSALI, G. E MARENGO, M COGHE, A ZHDANOV, S |
| description | This paper reports on an experimental study of the impact of water drops on thin liquid films. The morphology of the impact was studied by still photography, and quantitative results were obtained by a proper image analysis technique. The time evolution of various parameters like the crown diameter, the crown height, and the secondary drop diameters are reported, and these experimental parameters are correlated and compared to available theoretical models. A particular set-up of the acquisition system allowed us to photograph the splash from below the solid wall, allowing the first estimation of the crown thickness and the total number of jets protruding from the crown rim as a function of time. The results indicate that, for the range of the parameters investigated, there is not a strong dependence on the film thickness. The evolution of the crown height depends on the impact Weber number, whereas its growing velocity and the crown thickness evolution are almost independent of Weber number. |
| doi_str_mv | 10.1007/s00348-003-0772-0 |
| format | Article |
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The results indicate that, for the range of the parameters investigated, there is not a strong dependence on the film thickness. The evolution of the crown height depends on the impact Weber number, whereas its growing velocity and the crown thickness evolution are almost independent of Weber number.</description><subject>Correlation</subject><subject>Drops and bubbles</subject><subject>Evolution</subject><subject>Exact sciences and technology</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Impact analysis</subject><subject>Instrumentation for fluid dynamics</subject><subject>Mathematical models</subject><subject>Morphology</subject><subject>Nonhomogeneous flows</subject><subject>Physics</subject><subject>Thin films</subject><subject>Walls</subject><subject>Weber number</subject><issn>0723-4864</issn><issn>1432-1114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkDlPAzEUhC0EEiHwA-jcgGgMz8f6KBHikiLRhNpyfJBFewR7U_DvcZRIdNDMk958M8UgdEnhlgKouwLAhSZVCSjFCByhGRWcEUqpOEYzUIwToaU4RWelfALQxoCeIb5cR5zHLuIx4antI24HXNrho35CHje4bDpX1ngc8LSuVmq7_hydJNeVeHG4c_T-9Lh8eCGLt-fXh_sF8VzBRKI3XiQGRvPGp6SY1MlAVMHIwFbeUZZi4A6U0SkEo1bUSyWcDjxIJ6Tgc3S9793k8Wsby2T7tvjYdW6I47ZYZkBqrmgFb_4EqRSMNboR-n-0oYzzRgKvKN2jPo-l5JjsJre9y9-Wgt2Nbvej26p2N7qFmrk61LviXZeyG3xbfoON5kbX8h_Xi39U</recordid><startdate>20040601</startdate><enddate>20040601</enddate><creator>COSSALI, G. 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E</creatorcontrib><creatorcontrib>MARENGO, M</creatorcontrib><creatorcontrib>COGHE, A</creatorcontrib><creatorcontrib>ZHDANOV, S</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Experiments in fluids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>COSSALI, G. 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A particular set-up of the acquisition system allowed us to photograph the splash from below the solid wall, allowing the first estimation of the crown thickness and the total number of jets protruding from the crown rim as a function of time. The results indicate that, for the range of the parameters investigated, there is not a strong dependence on the film thickness. The evolution of the crown height depends on the impact Weber number, whereas its growing velocity and the crown thickness evolution are almost independent of Weber number.</abstract><cop>Heidelberg</cop><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s00348-003-0772-0</doi><tpages>13</tpages></addata></record> |
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| subjects | Correlation Drops and bubbles Evolution Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) Impact analysis Instrumentation for fluid dynamics Mathematical models Morphology Nonhomogeneous flows Physics Thin films Walls Weber number |
| title | The role of time in single drop splash on thin film |
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