Institution
Swedish Defence Research Agency
Government•Stockholm, Sweden•
About: Swedish Defence Research Agency is a government organization based out in Stockholm, Sweden. It is known for research contribution in the topics: Radar & Synthetic aperture radar. The organization has 1413 authors who have published 2731 publications receiving 56083 citations. The organization is also known as: Totalförsvarets forskningsinstitut.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, an extended version of the isotropic R-equation model accompanied by an elliptic relaxation approach to account for the distinct effects of low-Reynolds number (LRN) and wall proximity is proposed.
Abstract: An extended version of the isotropic R–equation model accompanied by an elliptic relaxation approach to account for the distinct effects of low-Reynolds number (LRN) and wall proximity is proposed. The turbulent kinetic energy k and the dissipation rate ϵ are evaluated using the R (\(=k^2/\tilde{\epsilon}\)) transport equation together with some empirical relations. The eddy viscosity formulation maintains the positivity of normal Reynolds stresses and the Schwarz’ inequality for turbulent shear stresses. The model coefficients/functions preserve the anisotropic characteristics of turbulence in the sense that they are sensitized to rotational and nonequilibrium flows. The model is validated against a few well-documented flow cases, yielding predictions in good agreement with the direct numerical simulation (DNS) and experimental data. Comparisons indicate that the present model offers some improvement over the Spalart–Allmaras one–equation model and competitiveness with the SST k–ω model.
32 citations
TL;DR: In this article, an optical parametric oscillator using a periodically poled LiNbO3 crystal and a volume Bragg output coupler was presented, and the signal and idler wavelengths of 2008 and 2264 nm were generated.
Abstract: An optical parametric oscillator using a periodically poled LiNbO3 crystal and a volume Bragg grating output coupler is presented. Signal and idler wavelengths of 2008 and 2264 nm were generated fr ...
32 citations
TL;DR: The data indicate that a systemic cytokine response and lung neutrophilia may prime for the GSR but that other mechanisms account for the rapid decline in lung function after the second challenge and suggest that this model can be used for studies of pathogenesis and therapeutic prevention of acute respiratory failure.
Abstract: Lung effects during a generalized Shwartzman reaction and therapeutic intervention with dexamethasone or vitamin E.
32 citations
TL;DR: In this article, the authors measured the local strain between two bolts by using strain gauges on composite joints with different configurations and found that the presence of the bolt affects the strain development between the bolts.
32 citations
01 Jan 2019
TL;DR: In this article, the authors combine experimental measurements of high-speed (subsonic and supersonic) combustion at different operating conditions in the LAPCAT-II dual-mode ramjet/scramjet combustor with Large Eddy Simulations (LES) using finite rate chemistry models and skeletal H2 air combustion chemistry.
Abstract: Dual-mode ramjet/scramjet engines are considered a promising propulsion system for the next generation commercial high-speed transport flight vehicles In this study we combine experimental measurements of high-speed (subsonic and supersonic) combustion at different operating conditions in the LAPCAT-II dual-mode ramjet/scramjet combustor with Large Eddy Simulations (LES) using finite rate chemistry models and skeletal H2–air combustion chemistry The combustor geometrically consists of four sections, and experiments have been realized for wall injection of H2 in a Mach = 2 vitiated air-flow for total pressures and temperatures of p0 = 040 MPa, 1414 K
32 citations
Authors
Showing all 1417 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Anders Larsson | 80 | 1307 | 33995 |
| Anders Johansson | 75 | 538 | 21709 |
| Anders Eriksson | 68 | 679 | 19487 |
| Dan S. Henningson | 66 | 369 | 19038 |
| Bengt Johansson | 66 | 635 | 19206 |
| Anders Sjöstedt | 63 | 196 | 11422 |
| Björn Johansson | 62 | 637 | 16030 |
| Mats Gustafsson | 61 | 520 | 18574 |
| D. G. Joakim Larsson | 58 | 151 | 13687 |
| Anders Larsson | 54 | 198 | 55761 |
| Mats Tysklind | 53 | 250 | 17534 |
| Jerker Fick | 51 | 143 | 8787 |
| Erik Johansson | 50 | 114 | 9437 |
| Göran Finnveden | 49 | 193 | 12663 |
| Ian A. Nicholls | 45 | 194 | 7522 |