Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Harald E. Krogstad"'
Publikováno v:
Hydrology Research, Vol 54, Iss 11, Pp 1432-1450 (2023)
Aquifer thermal energy storage (ATES) systems offer reduced energy costs, lower carbon emissions, and increased energy resilience. The feasibility, however, depends on several factors and usually require optimization. We study an ATES system with inj
Externí odkaz:
https://doaj.org/article/ad4d95dd650744bb9b4260194f466a3d
Autor:
Harald E. Krogstad
Publikováno v:
Modeling, Identification and Control, Vol 9, Iss 2, Pp 81-97 (1988)
The paper discusses estimation of directional ocean wave spectra from a spatial array of sensors by means of the Maximum Likelihood (ML) method. An iterative improvement of the ML estimate is proposed and illustrated on synthetic and real data. The w
Externí odkaz:
https://doaj.org/article/14893e328d5246439e950ac34daf0e95
Autor:
Stephen F. Barstow, Harald E. Krogstad
Publikováno v:
Modeling, Identification and Control, Vol 5, Iss 1, Pp 47-70 (1984)
Directional ocean wave data is usually analysed using the so-called linear model of the sea surface, but experience has shown that the results may deviate substantially from the predictions of the theory, in particular in the high frequency range. A
Externí odkaz:
https://doaj.org/article/1e9e6c7865d24239b20215bfb8b5ca69
Publikováno v:
Natural Resource Modeling. 33
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::198c1884a33737f5a04dbdf1f62ff39b
https://doi.org/10.1111/nrm.12260
https://doi.org/10.1111/nrm.12260
Publikováno v:
Journal of Atmospheric and Oceanic Technology
The properties of directional distributions in ocean wave spectra are studied, with an emphasis on sea states with bimodal directional distributions in the high-frequency tails of single-peaked wave systems. A peak-splitting tendency has been a chall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3eb992f7e85c94de2a3b7867fa79cdf4
https://doi.org/10.1175/jtech-d-17-0007.1
https://doi.org/10.1175/jtech-d-17-0007.1
The paper discusses analytical and numerical radial solutions of the differential equations for heat transport in water-saturated porous media. In particular, a similarity solution is obtained for a 2D-horizontal confined aquifer with constant radial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee0cec8919e787f1711d54806454eafd
https://www.hydrol-earth-syst-sci-discuss.net/hess-2017-303/
https://www.hydrol-earth-syst-sci-discuss.net/hess-2017-303/
Publikováno v:
Hydrology Research. 46:721-734
The main purpose of this paper is to present a robust forward model for simulating extraction and storage of thermal energy in an aquifer. The model is a local three-dimensional finite element model with boundary conditions derived from an analytic l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::150fb0b98559061bb0dc715f277af4b2
https://doi.org/10.2166/nh.2015.119
https://doi.org/10.2166/nh.2015.119
Publikováno v:
Applied Ocean Research
We have employed laboratory and numerical experiments in order to investigate propagation of waves in both long and short-crested wave fields in deep water. For long-crested waves with steepness, ϵ = kcac = 0.1 (a fairly extreme case), reliable pred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e969fa45d724f2b1704f199e5f5b93a0
http://hdl.handle.net/11250/2483106
http://hdl.handle.net/11250/2483106
Publikováno v:
Journal of Fluid Mechanics
Using a nonlinear evolution equation we examine the dependence of the dispersion of directional surface gravity waves on the Benjamin–Feir index (BFI) and crest length. A parameter for describing the deviation between the dispersion of simulated wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8ad6de31f89d36fc6487d0d970e7dca
http://hdl.handle.net/11250/2483094
http://hdl.handle.net/11250/2483094
Publikováno v:
Applied Ocean Research
The paper discusses the development of a frequency dependent directional spread from an initial condition of frequency-independence. The study applies basin directional measurements from the Maritime Research Institute Netherlands (MARIN), simulated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::174dff11c341b514ae0fa4ec1b9c255a
https://hdl.handle.net/11250/2483102
https://hdl.handle.net/11250/2483102