Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Frieder Kaiser"'
Three-dimensional (3D) flow reconstruction over a 6:1 prolate spheroid using scanning stereoscopic particle image velocimetry has been conducted in a towing-tank facility. Forces, moments, surface pressure and reconstructed 3D vortical-flow structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6be34b1936f26c6eb88d30cf953e5315
https://doi.org/10.21203/rs.3.rs-2805559/v1
https://doi.org/10.21203/rs.3.rs-2805559/v1
Autor:
Frieder Kaiser, David E. Rival
Recent advances in tracer, illumination, and camera technology, paired with new processing algorithms, have been pushing the limits of scale for three-dimensional flow measurements. The present study explores the state-of-the-art and discusses the cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a156eac670c775d7ff970d9b9b32562
https://doi.org/10.21203/rs.3.rs-2356060/v1
https://doi.org/10.21203/rs.3.rs-2356060/v1
Publikováno v:
AIAA SCITECH 2022 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89e91954d52b0c204ec84f9b4422a1dd
https://doi.org/10.2514/6.2022-1669
https://doi.org/10.2514/6.2022-1669
The aerodynamic forces experienced by vehicles depend on a variety of factors including wind direction, traffic, and roadside vegetation. Such complex boundary conditions often result in unsteady flow separation and the formation of large-scale coher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5cf4a19cc8fb9acb4e8244af43b56e1
https://nrc-publications.canada.ca/eng/view/object/?id=d44e9a84-676a-4765-975f-678f9a28c4f6
https://nrc-publications.canada.ca/eng/view/object/?id=d44e9a84-676a-4765-975f-678f9a28c4f6
Autor:
Davide Gatti, Joël Sommeria, Bettina Frohnapfel, Samuel Viboud, Jochen Kriegseis, Frieder Kaiser, David E. Rival, Malte von der Burg
Publikováno v:
Journal of Fluid Mechanics, 924, 2100600
To mimic the unsteady vortex–wall interaction of animal propulsion in a canonical test case, a vorticity-annihilating boundary layer was examined through the spin-down of a vortex from solid-body rotation. A cylindrical, water-filled tank was rapid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f46b86cdbce9356f828f895fcf27827c
https://publikationen.bibliothek.kit.edu/1000137067
https://publikationen.bibliothek.kit.edu/1000137067
Publikováno v:
Experiments in Fluids: experimental methods and their applications to fluid flow, 62(5)
A novel method for three-dimensional particle tracking velocimetry (PTV) is proposed that enables flow measurements in large volumes [ $$V=\mathcal {O}(10$$ m $${^3}$$ )] using a single camera. Flow is seeded with centimeter-sized soap bubbles, when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3000adb659062510a3611ab33d1b05eb
http://resolver.tudelft.nl/uuid:c0189135-ca7f-4884-9a74-3c32a41fcad4
http://resolver.tudelft.nl/uuid:c0189135-ca7f-4884-9a74-3c32a41fcad4
Publikováno v:
Physics of Fluids. 34:025105
Inspired by biological swimming and flying with distributed sensing, we propose a data-driven approach for load estimation that relies on complex networks. We exploit sparse, real-time pressure inputs, combined with pre-trained transition networks, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71e5f6a27fed56c3f92b1e950884fb49
https://doi.org/10.1063/5.0076731
https://doi.org/10.1063/5.0076731
Autor:
Jochen Kriegseis, Rodolfo Ostilla-Mónico, Frieder Kaiser, Davide Gatti, Bettina Frohnapfel, David E. Rival
Publikováno v:
Journal of Fluid Mechanics. 885
The flow within an infinitely long cylinder exhibiting solid-body rotation (SBR) is impulsively stopped. The complete decay of the initial SBR is captured by means of direct numerical simulations for a wide range of Reynolds numbers ( is approximatel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8025429dd4fee34312d3cda74b9d1a2b
https://doi.org/10.1017/jfm.2019.974
https://doi.org/10.1017/jfm.2019.974
Publikováno v:
Journal of fluid mechanics, 883, Art. Nr.: A55
Experiments to study the effect of edge undulation on vortex formation have been conducted on impulsively accelerated plates. Abstractions of propulsors found in nature are produced by imprinting undulatory features with varying wavelengths onto the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85cf665e4aa8cb0ecfabac9e632c618c
https://doi.org/10.1017/jfm.2019.908
https://doi.org/10.1017/jfm.2019.908
Publikováno v:
Physics of Fluids. 32:115110
For a broad range of aerodynamic bodies, vortex structures arising from perturbations such as gusts cause characteristic surface pressure signatures that are coupled to the observed aerodynamic loads. The present study evaluates the extent to which s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34d73d1e5bb5c09aecb6268f954930ca
https://doi.org/10.1063/5.0025860
https://doi.org/10.1063/5.0025860