Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Ralph Lindken"'
Publikováno v:
Experiments in Fluids. 62
High-pressure water jets bear a great technological potential to enhance geothermal deep drilling. Compared to existing water cutting technologies, significantly different operation conditions are encountered under deep-drilling conditions, such as h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbbc6cc0bc8cfa5bbe2237e7b79a3399
https://doi.org/10.1007/s00348-021-03167-x
https://doi.org/10.1007/s00348-021-03167-x
Autor:
Marcus Petermann, Ralph Lindken, Jeanette Hussong, Daniel P. Gradzki, Rolf Bracke, Sarah Jasper
An in-depth process analysis of water jetting, a promising cost-effective drilling method for the exploration of geothermal reservoirs, is presented. The jetting process is analyzed under submerged and pressurized conditions by complementary high-spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec14c9d6d6555e97a593b176937cda36
https://publica.fraunhofer.de/handle/publica/268775
https://publica.fraunhofer.de/handle/publica/268775
Publikováno v:
Experiments in Fluids: experimental methods and their applications to fluid flow, 62(4)
Abstract In this study, we reconstruct the 3D pressure field and derive the 3D contributions of the energy dissipation from a 3D3C velocity field measurement of Taylor droplets moving in a horizontal microchannel ($$\rm Ca_c=0.0050$$ Ca c = 0.0050 ,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d348aa9c99d1c864a122ff5b63908466
http://resolver.tudelft.nl/uuid:5c1c79ae-ab3e-4c00-a4f5-d8ec12496b11
http://resolver.tudelft.nl/uuid:5c1c79ae-ab3e-4c00-a4f5-d8ec12496b11
Publikováno v:
Experiments in Fluids: experimental methods and their applications to fluid flow, 61(5)
Abstract This paper presents a µPIV measurement of the 3D2C velocity distribution of Taylor droplets moving in a square horizontal microchannel at Ca$$_{\mathrm {c}} = 0.005$$c=0.005 and Re$$_{\mathrm {c}} = 0.051$$c=0.051. We reconstruct the third
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2780608b6581eeacfda3b4f1667a1565
https://doi.org/10.1007/s00348-020-02949-z
https://doi.org/10.1007/s00348-020-02949-z
Publikováno v:
Experiments in Fluids. 60
In the original version of the article, the supplementary material was unintentionally omitted. The electronic supplementary material can be accessed through the link below.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3845425b8cf35c64aa1c231894d24301
https://doi.org/10.1007/s00348-019-2750-1
https://doi.org/10.1007/s00348-019-2750-1
Publikováno v:
Experiments in Fluids. 60
This paper presents a geometric model to approximate the interface shape of Taylor bubbles and droplets moving in rectangular microchannels. To retrieve the entire 3D interface geometry, the following apriori knowledge is required: the cross-sectiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb6fea3d31eb2aec75f17e3fa42ffd45
https://doi.org/10.1007/s00348-019-2719-0
https://doi.org/10.1007/s00348-019-2719-0
Publikováno v:
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname
instname
[EN] High pressure water jets (HPWJ) with Reynolds numbers in the scale of 104 are visualised by high speed photography in air and water. Moreover, suitable measurement techniques are tested and verified by quantitative analysis of the emerging jet t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::153bcf1052ea2c84425b8ea61ae23df7
Autor:
Kendra V. Sharp, K. Noreikat, Ralph Lindken, Jerry Westerweel, Jeanette Hussong, Wolfgang Kummer, Petra Faulhammer
Publikováno v:
Journal of Biomechanics, 46 (3), 2013
To date, there is only a fragmentary understanding of the fundamental mechanisms of airway mucociliary transport. Application of the latest measurement techniques can aid in deciphering the complex interplay between ciliary beat and airway surface li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::492efe6094fd56c148aca04de9d62243
https://doi.org/10.1016/j.jbiomech.2012.08.020
https://doi.org/10.1016/j.jbiomech.2012.08.020
Publikováno v:
La Houille Blanche. 97:55-61
The investigation of the gas flow in a working fuel cell by means of optical measurement techniques like micro Particle-Image Velocimetry (µPIV) requires the generation of suitable tracer particles. In this work the analysis of tracer particle chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b46ff91b407f5213a53609fd1113ea9c
https://doi.org/10.1051/lhb/2011041
https://doi.org/10.1051/lhb/2011041
Publikováno v:
tm - Technisches Messen. 78:253-259
Zusammenfassung Es wird ein Messverfahren vorgestellt, mit dem sich die Geschwindigkeitsverteilung einer Mikrokanalströmung in der Gas- oder Flüssigphase bestimmen lässt. Diese Micro Particle-Image-Velocimetry (μPIV) genannte Technik ist ein ber
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91f460d4beec1ac54ecfbac4dd95e6af
https://doi.org/10.1524/teme.2011.0136
https://doi.org/10.1524/teme.2011.0136