Zobrazeno 1 - 10 of 18 pro vyhledávání: '"Christoph Knigge"'
1
Akademický článek
Harmonization and Verification of Three National European Icing Forecast Models Using Pilot Reports
Autor: Christoph Knigge, Katie Bennett, Christine Le Bot, Mara Gehlen-Zeller, Svenja Koos
Publikováno v: Advances in Meteorology, Vol 2022 (2022)
The Single European Sky Air Traffic Management Research (SESAR) program aims at modernizing and harmonizing the European airspace, which currently has a strongly fragmented character. Besides turbulence and convection, in-flight icing is part of SESA
Externí odkaz: https://doaj.org/article/5e498e31af3b4dc1ad27661a895875cd
Zobrazit plný text záznamu
2
Akademický článek
Water Tank Experiments on Stratified Flow over Double Mountain-Shaped Obstacles at High-Reynolds Number
Autor: Ivana Stiperski, Stefano Serafin, Alexandre Paci, Hálfdán Ágústsson, Anne Belleudy, Radiance Calmer, Kristian Horvath, Christoph Knigge, Johannes Sachsperger, Lukas Strauss, Vanda Grubišić
Publikováno v: Atmosphere, Vol 8, Iss 1, p 13 (2017)
In this article, we present an overview of the HyIV-CNRS-SecORo (Hydralab IV-CNRS-Secondary Orography and Rotors Experiments) laboratory experiments carried out in the CNRM (Centre National de Recherches Météorologiques) large stratified water flum
Externí odkaz: https://doaj.org/article/0059115526954937a8896f38e9c15166
Zobrazit plný text záznamu
4
A nested multi-scale system implemented in the large-eddy simulation model PALM model system 6.0
Autor: Mikko Auvinen, Klaus Ketelsen, Matthias Sühring, Siegfried Raasch, Fotios Barmpas, Antti Hellsten, Nicolas Moussiopoulos, Christoph Knigge, Björn Maronga, Georgios Tsegas
Publikováno v: Geoscientific Model Development, Vol 14, Pp 3185-3214 (2021)
Geoscientific Model Development
Geoscientific Model Development 14 (2021), Nr. 6
Large-eddy simulation (LES) provides a physically sound approach to study complex turbulent processes within the atmospheric boundary layer including urban boundary layer flows. However, such flow problems often involve a large separation of turbulen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5892967a42df6a8b107cc13e4cd138ed
Zobrazit plný text záznamu
5
An Improved Surface Boundary Condition for Large-Eddy Simulations Based on Monin–Obukhov Similarity Theory: Evaluation and Consequences for Grid Convergence in Neutral and Stable Conditions
Autor: Björn Maronga, Siegfried Raasch, Christoph Knigge
Publikováno v: Boundary-Layer Meteorology 2019 (2019)
Boundary-layer Meteorology
Monin–Obukhov similarity theory is used in large-eddy simulation (LES) models as a surface boundary condition to predict the surface shear stress and scalar fluxes based on the gradients between the surface and the first grid level above the surfac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e05ae405a3d979cfa39057d8d7a5f56c
https://www.repo.uni-hannover.de/handle/123456789/9316
Zobrazit plný text záznamu
6
Improvement and development of one- and two-dimensional discrete gust models using a large-eddy simulation model
Autor: Christoph Knigge, Siegfried Raasch
Publikováno v: Journal of Wind Engineering and Industrial Aerodynamics 153 (2016)
High resolution large-eddy simulations (LES) were carried out to simulate the turbulent flow of the atmospheric boundary layer during an idealized strong-wind event in order to verify discrete gust models like the one-minus-cosine law which are used
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da8a0b87dfe6e22112d6efaf1f255127
https://doi.org/10.1016/j.jweia.2016.03.004
Zobrazit plný text záznamu
7
Comparison of two methods simulating highly resolved atmospheric turbulence data for study of stall effects
Autor: Christoph Knigge, Siegfried Raasch, Torsten Auerswald, Jens Bange
Publikováno v: Computers & Fluids. 108:57-66
We compare two different methods that provide highly resolved three-dimensional turbulent wind fields for numerical investigations of stall effects. The first is computationally very expensive and explicitly simulates the turbulent wind fields using
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2575ec56add2a2876ec5d057e5643e93
https://doi.org/10.1016/j.compfluid.2014.11.005
Zobrazit plný text záznamu
8
Water Tank Experiments on Stratified Flow over Double Mountain-Shaped Obstacles at High-Reynolds Number
Autor: Johannes Sachsperger, Alexandre Paci, Radiance Calmer, Ivana Stiperski, Hálfdán Ágústsson, Vanda Grubišić, Anne Belleudy, Kristian Horvath, Lukas Strauss, Christoph Knigge, Stefano Serafin
Publikováno v: Atmosphere; Volume 8; Issue 1; Pages: 13
Atmosphere 8 (2017), Nr. 1
Atmosphere, Vol 8, Iss 1, p 13 (2017)
In this article,we present an overviewof theHyIV-CNRS-SecORo (Hydralab IV-CNRS-Secondary Orography and Rotors Experiments) laboratory experiments carried out in the CNRM (Centre National de Recherches Météorologiques) large stratified water flume.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8c8ae5a50f3a5c2178a40fcbbb96d57
Zobrazit plný text záznamu
9
Simulation of Wing and Nacelle Stall
Autor: Rolf Radespiel, Thorsten Lutz, Silvia Reuss, Katharina Wawrzinek, Tobias Knopp, Rainer Hain, Torsten Auerswald, David Hoppmann, Christoph Knigge, Ralf Heinrich, Daniela Gisele François, Jens Bange, Christian J. Kähler, Peter Scholz, Simon Klein, Axel Probst, Siegfried Raasch, Philip Kelleners, Simon Übelacker
Publikováno v: 54th AIAA Aerospace Sciences Meeting.
Numerical stall simulations are challenging in terms of physical models involved, overall computation effort, and the needed efforts for validation. The present paper describes coordinated, fundamental research into new simulation methodologies and t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67d290bd61ed433cb4b83dc1ed011771
https://doi.org/10.2514/6.2016-1830
Zobrazit plný text záznamu
10
Porting the MPI Parallelized LES Model PALM to Multi-GPU Systems – An Experience Report
Autor: Tobias Gronemeier, Christoph Knigge, Helge Knoop, Peter Steinbach
Publikováno v: Lecture Notes in Computer Science ISBN: 9783319460789
ISC Workshops
The computational power of graphics processing units (GPUs) and their availability on high performance computing (HPC) systems is rapidly evolving. However, HPC applications need to be ported to be executable on such hardware. This paper is a report
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d687383c1533a48bbeec7b0ea5f0adf8
https://doi.org/10.1007/978-3-319-46079-6_35
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje