Matches in SemOpenAlex for { <https://semopenalex.org/work/W109409768> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W109409768 abstract "In laser-driven implosion experiments, a degradation of the single shell capsule yield could be observed due to mixing between the fuel and shell. This mixing is obtained by the growth of hydrodynamic instabilities at the interface between the fuel and the shell. These processes have various origins (inner and outer shell roughness, laser drive perturbations, ...) and evolve through different ways (Rayleigh-Taylor Instability, Richtmyer-Meshkov Instability, “Feed-Through”, ...). The numerical simulations of these intrinsically three-dimensional phenomena, are still costly in term of cpu-time. We thus need an onedimensional mixing model if we want to asses the impact of variation in the definition of the target, the holraum or the laser drive with a moderate cpu-time cost. The main hypothesis for our mix-model is that the interpenetration is multifluid and that mass fraction and thermal exchanges could be modelled by the meaning of diffusive processes. Each fluid is in its own volume in an isothermal and a quasi-isobaric balance with the other. An additional diffusive equation calculate the mass fraction evolution of one component of the mixing. The diffusion coefficient is proportional to the length of the mixing zone and its time derivative. The thickening of the interpenetration zone is, indeed, supposed to be known from experimental data or from post-processing of two-dimensional computations results. One part of the thermal exchanges are due to the enthalpy exchanged by mass transport. Another part is due to electronic and ionic thermal conduction. All others thermal homogenization phenomena (energy loss by transverse thermal conduction, 1D average, ...) are modelled by an effective thermal conduction. We will discuss examples of application of our model to LMJ target simulations. We focused on comparison between our one-dimensional computation results using MEDIC-2F and the corresponding 1D-averaged two-dimensional computation results obtained with the CEA hydrocode FCI2. References" @default.
- W109409768 created "2016-06-24" @default.
- W109409768 creator A5004372001 @default.
- W109409768 creator A5012490275 @default.
- W109409768 date "2002-01-01" @default.
- W109409768 modified "2023-09-24" @default.
- W109409768 title "MEDIC-2F: a one-dimensional diffusive mixing model. Application to LMJ target simulations." @default.
- W109409768 cites W2047699191 @default.
- W109409768 cites W3217008510 @default.
- W109409768 hasPublicationYear "2002" @default.
- W109409768 type Work @default.
- W109409768 sameAs 109409768 @default.
- W109409768 citedByCount "0" @default.
- W109409768 crossrefType "journal-article" @default.
- W109409768 hasAuthorship W109409768A5004372001 @default.
- W109409768 hasAuthorship W109409768A5012490275 @default.
- W109409768 hasConcept C121332964 @default.
- W109409768 hasConcept C130217890 @default.
- W109409768 hasConcept C138777275 @default.
- W109409768 hasConcept C172100665 @default.
- W109409768 hasConcept C185544564 @default.
- W109409768 hasConcept C185592680 @default.
- W109409768 hasConcept C18903297 @default.
- W109409768 hasConcept C192562407 @default.
- W109409768 hasConcept C196046385 @default.
- W109409768 hasConcept C207821765 @default.
- W109409768 hasConcept C2778722038 @default.
- W109409768 hasConcept C2916875 @default.
- W109409768 hasConcept C57879066 @default.
- W109409768 hasConcept C62520636 @default.
- W109409768 hasConcept C82706917 @default.
- W109409768 hasConcept C86803240 @default.
- W109409768 hasConcept C97355855 @default.
- W109409768 hasConceptScore W109409768C121332964 @default.
- W109409768 hasConceptScore W109409768C130217890 @default.
- W109409768 hasConceptScore W109409768C138777275 @default.
- W109409768 hasConceptScore W109409768C172100665 @default.
- W109409768 hasConceptScore W109409768C185544564 @default.
- W109409768 hasConceptScore W109409768C185592680 @default.
- W109409768 hasConceptScore W109409768C18903297 @default.
- W109409768 hasConceptScore W109409768C192562407 @default.
- W109409768 hasConceptScore W109409768C196046385 @default.
- W109409768 hasConceptScore W109409768C207821765 @default.
- W109409768 hasConceptScore W109409768C2778722038 @default.
- W109409768 hasConceptScore W109409768C2916875 @default.
- W109409768 hasConceptScore W109409768C57879066 @default.
- W109409768 hasConceptScore W109409768C62520636 @default.
- W109409768 hasConceptScore W109409768C82706917 @default.
- W109409768 hasConceptScore W109409768C86803240 @default.
- W109409768 hasConceptScore W109409768C97355855 @default.
- W109409768 hasLocation W1094097681 @default.
- W109409768 hasOpenAccess W109409768 @default.
- W109409768 hasPrimaryLocation W1094097681 @default.
- W109409768 hasRelatedWork W1969795249 @default.
- W109409768 hasRelatedWork W1975070626 @default.
- W109409768 hasRelatedWork W2005109781 @default.
- W109409768 hasRelatedWork W2020202587 @default.
- W109409768 hasRelatedWork W2022628534 @default.
- W109409768 hasRelatedWork W2025825060 @default.
- W109409768 hasRelatedWork W2053218194 @default.
- W109409768 hasRelatedWork W2058876337 @default.
- W109409768 hasRelatedWork W2071676350 @default.
- W109409768 hasRelatedWork W2072594483 @default.
- W109409768 hasRelatedWork W2082180739 @default.
- W109409768 hasRelatedWork W2088910935 @default.
- W109409768 hasRelatedWork W2121246176 @default.
- W109409768 hasRelatedWork W2128288622 @default.
- W109409768 hasRelatedWork W2148114087 @default.
- W109409768 hasRelatedWork W2327103727 @default.
- W109409768 hasRelatedWork W2510470513 @default.
- W109409768 hasRelatedWork W2999118931 @default.
- W109409768 hasRelatedWork W3104448920 @default.
- W109409768 hasRelatedWork W3196330494 @default.
- W109409768 isParatext "false" @default.
- W109409768 isRetracted "false" @default.
- W109409768 magId "109409768" @default.
- W109409768 workType "article" @default.