Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Hermann Knaus"'
Autor:
Sarah Barber, Alain Schubiger, Sara Koller, Dominik Eggli, Alexander Radi, Andreas Rumpf, Hermann Knaus
Publikováno v:
Energies, Vol 15, Iss 3, p 1110 (2022)
In wind energy, the accuracy of the estimation of the wind resource has an enormous effect on the expected rate of return of a project. For a given project, the wind resource assessor is faced with a difficult choice of a wide range of simulation too
Externí odkaz:
https://doaj.org/article/d28b964355b645ee98a96bcaf1251522
Autor:
Asmae El Bahlouli, Daniel Leukauf, Andreas Platis, Kjell zum Berge, Jens Bange, Hermann Knaus
Publikováno v:
Energies, Vol 13, Iss 18, p 4688 (2020)
Micrometeorological observations from a tower, an eddy-covariance (EC) station and an unmanned aircraft system (UAS) at the WINSENT test-site are used to validate a computational fluid dynamics (CFD) model, driven by a mesoscale model. The observatio
Externí odkaz:
https://doaj.org/article/67cd387470d749c2a3b107da0869ce29
Autor:
Asmae El Bahlouli, Alexander Rautenberg, Martin Schön, Kjell zum Berge, Jens Bange, Hermann Knaus
Publikováno v:
Energies, Vol 12, Iss 10, p 1992 (2019)
This investigation presents a modelling strategy for wind-energy studies in complex terrains using computational fluid dynamics (CFD). A model, based on an unsteady Reynolds Averaged Navier-Stokes (URANS) approach with a modified version of the stand
Externí odkaz:
https://doaj.org/article/dee380d7292740ad9687a000818f97e9
Publikováno v:
Computation, Vol 6, Iss 3, p 43 (2018)
A model for the simulation of wind flow in complex terrain is presented based on the Reynolds averaged Navier–Stokes (RANS) equations. For the description of turbulence, the standard k-ε, the renormalization group (RNG) k-ε, and a Reynolds stress
Externí odkaz:
https://doaj.org/article/fa5ecdf79a8b4bfe91f96d27b9f75679
Publikováno v:
Boundary-Layer Meteorology. 186:69-91
The uncrewed airborne measurement platform MASC-3 (Multi-Purpose Airborne Sensor Carrier) is used to measure the influence of a forested escarpment with differing leaf area indices (LAI) onto the wind field. Data from flight legs between 30 and 200 m
Autor:
Sarah Barber, Alain Schubiger, Sara Koller, Dominik Eggli, Alexander Radi, Andreas Rumpf, Hermann Knaus
Understanding the uncertainties of wind resource assessments (WRAs) is key to reducing project risks, and this is particularly challenging in mountainous terrain. In the academic literature, many complex flow sites have been investigated, but they al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8cf2aa551edad59232c22f779e02cce
https://doi.org/10.5194/wes-2021-158
https://doi.org/10.5194/wes-2021-158
In this paper, new automated processes for applying the commercial Computational Fluid Dynamics (CFD) tools ANSYS Fluent and ANSYS CFX to wind modelling in complex terrain are developed with the goal of decreasing the Actual Total Costs (ATC) related
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a7dcf6687e4e5f09ca77f10a089beef
https://zenodo.org/record/4094652
https://zenodo.org/record/4094652
Autor:
Kjell zum Berge, Asmae El Bahlouli, Hermann Knaus, Jens Bange, Andreas Platis, Daniel Leukauf
Publikováno v:
Energies; Volume 13; Issue 18; Pages: 4688
Energies, Vol 13, Iss 4688, p 4688 (2020)
Energies, 13 (18), Art. Nr.: 4688
Energies, Vol 13, Iss 4688, p 4688 (2020)
Energies, 13 (18), Art. Nr.: 4688
Micrometeorological observations from a tower, an eddy-covariance (EC) station and an unmanned aircraft system (UAS) at the WINSENT test-site are used to validate a computational fluid dynamics (CFD) model, driven by a mesoscale model. The observatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a913e9b69d829191ee7fd4e7ff1974e
The Weather Research and Forecasting (WRF) Model has been coupled with a URANS Model to simulate the passage of a cold front over the WINSENT site, a wind energy test-site under development. It is located on a hill near a steep, forested terrain edge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27869ef96c16c962a58215e06d2e8690
https://doi.org/10.5194/wes-2019-68
https://doi.org/10.5194/wes-2019-68
Publikováno v:
Journal of Wind Engineering and Industrial Aerodynamics. 169:290-307
An anelastic model and a quasi-compressible model for the simulation of wind flow in complex terrain are presented. The models are based on the Reynolds Averaged Navier-Stokes (RANS) equations in combination with the k-e turbulence model. Additional