Zobrazeno 1 - 10
of 169
pro vyhledávání: '"Bernardus J. Geurts"'
Publikováno v:
Journal of statistical physics, 179(5-6), 1343-1365. Springer
Two different types of perturbations of the Lorenz 63 dynamical system for Rayleigh-Benard convection by multiplicative noise -- called stochastic advection by Lie transport (SALT) noise and fluctuation-dissipation (FD) noise -- are found to produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3082a3969dc9c84b2b90a056682b54
http://www.scopus.com/inward/record.url?scp=85077067435&partnerID=8YFLogxK
http://www.scopus.com/inward/record.url?scp=85077067435&partnerID=8YFLogxK
Autor:
Bernardus J. Geurts, Jeff Mirocha, Fotini Katopdes Chow, Alex Connolly, J. Neher, Leendert van Veen
Publikováno v:
Atmosphere, 12(1):55. Multidisciplinary Digital Publishing Institute (MDPI)
Atmosphere
Volume 12
Issue 1
Atmosphere, Vol 12, Iss 55, p 55 (2021)
Atmosphere
Volume 12
Issue 1
Atmosphere, Vol 12, Iss 55, p 55 (2021)
A challenge to simulating turbulent flow in multiscale atmospheric applications is the efficient generation of resolved turbulence motions over an area of interest. One approach is to apply small perturbations to flow variables near the inflow planes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d42098b06b34cd6a960c050d6f5c3e7
https://doi.org/10.3390/atmos12010055
https://doi.org/10.3390/atmos12010055
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783030555931
Reliability assessment of large-eddy simulation (LES) of turbulent flows requires consideration of errors due to shortcomings in the modeling of sub-filter scale dynamics and due to discretization of the governing filtered Navier-Stokes equations. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ab4ca5a758721e779dc6492942b443b
https://doi.org/10.1007/978-3-030-55594-8_5
https://doi.org/10.1007/978-3-030-55594-8_5
Autor:
Koen J.H. van Alphen, Naveed Ur Rahman, Gert Willem Römer, Thomas H.J. Vaneker, Bernardus J. Geurts, Laura Cordova Gonzalez, Davoud Jafari, Wessel W. Wits, Ian Gibson
Publikováno v:
Materials & Design, 191:108654. Elsevier
Materials & Design, Vol 191, Iss, Pp-(2020)
Materials & Design, Vol 191, Iss, Pp-(2020)
This paper presents an appropriate method to significantly reduce the pore size of high porosity porous stainless steel 316L structures fabricated by laser powder-bed fusion (LPBF) utilizing pulse wave emission (PW). PW deliberately avoids full-melt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40e1ea0a306385cbfe38e9bc34fe5867
https://research.utwente.nl/en/publications/73e2dbc0-93f9-4bef-91c8-ce4cd8113a77
https://research.utwente.nl/en/publications/73e2dbc0-93f9-4bef-91c8-ce4cd8113a77
Publikováno v:
International Journal of Heat and Fluid Flow, 83:108567. Elsevier
International journal of heat and fluid flow, 83:108567. Elsevier
International journal of heat and fluid flow, 83:108567. Elsevier
This paper focuses on the effects of a space-time dependent periodic stirring of a moderately turbulent planar co-flow jet configuration. The baseline flow is agitated in time and in space by small-scale turbulent perturbations in combination with la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0664fdf73ecaaa07faa5130abd97e5ae
https://doi.org/10.1016/j.ijheatfluidflow.2020.108567
https://doi.org/10.1016/j.ijheatfluidflow.2020.108567
Publikováno v:
International Journal of Multiphase Flow, 126:103244. Elsevier
International journal of multiphase flow, 126:103244. Elsevier
International Journal of Multiphase Flow, 126:103244
International journal of multiphase flow, 126:103244. Elsevier
International Journal of Multiphase Flow, 126:103244
Direct numerical simulations of fully developed turbulent channel downflow at bulk Re equal to 6300, loaded with monodisperse bubbles at gas volume fractions α = 0.5 % , α = 2.5 % and α = 10 % have been carried out. Bubble deformability, surface t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cb3c95b04972df96eb8a582e8d139b5
https://research.tue.nl/nl/publications/aae5fe5c-a457-46e0-a38e-3602b7245f42
https://research.tue.nl/nl/publications/aae5fe5c-a457-46e0-a38e-3602b7245f42
Publikováno v:
International journal of heat and fluid flow, 81:108519. Elsevier
The problem of turbulent Couette flow driven by a statistically steady external wind is studied in the framework of spatially filtered Navier–Stokes equations. The phenomenon of wind-driven flow of water is represented by a layer of air modeled as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11fa4bd3f69ba4c041ae70c4b1237d2c
https://research.utwente.nl/en/publications/ede4a22c-e27d-411b-ad63-32b36831e142
https://research.utwente.nl/en/publications/ede4a22c-e27d-411b-ad63-32b36831e142
Publikováno v:
ERCOFTAC Series ISBN: 9783030428211
Scaling parameters governing the physics of two-phase flow turbulence are presented, in particular for the study of coupled Poiseuille–Couette flows where waves are well under the capillary regime. Different approaches can be followed to either sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6ec4dbe4c48bb88f49e6d6bd232e79c
https://doi.org/10.1007/978-3-030-42822-8_6
https://doi.org/10.1007/978-3-030-42822-8_6
Publikováno v:
Computers and fluids, 176, 353-365. Elsevier
Computers & Fluids, 176, 353-365. Elsevier
Computers & Fluids, 176, 353-365. Elsevier
We discuss methods of multiscale forcing to enhance the mixing efficiency of an incompressible flow. To introduce a variety of length- and time-scales into a flow, we focus on two methods. First, we concentrate on effects due to guiding a fluid over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbb25327ebde62f35c37900dedcaf6fe
https://doi.org/10.1016/j.compfluid.2017.06.014
https://doi.org/10.1016/j.compfluid.2017.06.014
Publikováno v:
Applied thermal engineering, 143, 403-414. Elsevier
This paper examines the so-called capillary performance of a freeform porous structure fabricated by advanced 3D metal printing technology. The fabricated structure is intended as wick for two-phase heat transfer devices, in which it contributes to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9af0c138cacd886d6709d48537d6523
https://doi.org/10.1016/j.applthermaleng.2018.07.111
https://doi.org/10.1016/j.applthermaleng.2018.07.111