Kurz, Thomas

[["dc.bibliographiccitation.firstpage","395"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Experiments in Fluids"],["dc.bibliographiccitation.lastpage","408"],["dc.bibliographiccitation.volume","48"],["dc.contributor.author","Kroeninger, Dennis"],["dc.contributor.author","Koehler, Karsten"],["dc.contributor.author","Kurz, Thomas"],["dc.contributor.author","Lauterborn, Werner"],["dc.date.accessioned","2018-11-07T08:45:27Z"],["dc.date.available","2018-11-07T08:45:27Z"],["dc.date.issued","2010"],["dc.description.abstract","The velocity field in the vicinity of a laser-generated cavitation bubble in water is investigated by means of particle tracking velocimetry (PTV). Two situations are explored: a bubble collapsing spherically and a bubble collapsing aspherically near a rigid wall. In the first case, the accuracy of the PTV method is assessed by comparing the experimental data with the flow field around the bubble as obtained from numerical simulations of the radial bubble dynamics. The numerical results are matched to the experimental radius-time curve extracted from high-speed photographs by tuning the model parameters. Trajectories of tracer particles are calculated and used to model the experimental process of the PTV measurement. For the second case of a bubble collapsing near a rigid wall, both the bubble shape and the velocity distribution in the fluid around the bubble are measured for different standoff parameters gamma at several instants in time. The results for gamma > 1 are compared with the corresponding results of a boundary-integral simulation. For both cases, good agreement between simulation and experiment is found."],["dc.description.sponsorship","DFG-CNRS"],["dc.identifier.doi","10.1007/s00348-009-0743-1"],["dc.identifier.isi","000275460400002"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/4172"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20442"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-1114"],["dc.relation.issn","0723-4864"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goedoc.uni-goettingen.de/licenses"],["dc.subject.ddc","530"],["dc.title","Particle tracking velocimetry of the flow field around a collapsing cavitation bubble"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","043021"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","New Journal of Physics"],["dc.bibliographiccitation.volume","11"],["dc.contributor.affiliation","Enders, B;"],["dc.contributor.affiliation","Giewekemeyer, K;"],["dc.contributor.affiliation","Kurz, T;"],["dc.contributor.affiliation","Podorov, S;"],["dc.contributor.affiliation","Salditt, T;"],["dc.contributor.author","Enders, B."],["dc.contributor.author","Giewekemeyer, Klaus"],["dc.contributor.author","Podorov, S."],["dc.contributor.author","Salditt, Tim"],["dc.contributor.author","Kurz, T"],["dc.date.accessioned","2017-09-07T11:47:32Z"],["dc.date.available","2017-09-07T11:47:32Z"],["dc.date.issued","2009"],["dc.date.updated","2022-02-09T17:07:23Z"],["dc.description.abstract","Lensless imaging is a high potential and currently intensely targeted research goal, in view of those fields of applications for which aberration-free high-resolution lenses are not available, for example for x-ray imaging. A recently proposed (direct inversion) variant of lensless imaging combines the advantages of two classical routes toward lensless imaging, the high-resolution characteristics of iterative object reconstruction, and the direct and deterministic nature of holographic reconstruction. Here, we use a simple standard optical setup using visible wavelength, a lithographic test object and a phase-shifting reference object to demonstrate the approach. Importantly, we show that a phase-shifting reference object, instead of the absorption mask proposed earlier, is sufficient for object reconstruction. This is relevant in view of the much easier implementation in future x-ray applications."],["dc.identifier.doi","10.1088/1367-2630/11/4/043021"],["dc.identifier.eissn","1367-2630"],["dc.identifier.fs","379569"],["dc.identifier.gro","3143134"],["dc.identifier.isi","000265678400021"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/4058"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/615"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10 / Funder: Deutsche Forschungsgemeinschaft [SFB755]"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.issn","1367-2630"],["dc.relation.orgunit","Fakultät für Physik"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goedoc.uni-goettingen.de/licenses"],["dc.subject.ddc","530"],["dc.subject.gro","x-ray imaging"],["dc.title","Non-iterative coherent diffractive imaging using a phase-shifting reference frame"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]