FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4281395890> ?p ?o ?g. }

• W4281395890 abstract "We numerically study turbulent Rayleigh-Bénard (RB) convection under spatial temperature modulation, where the bottom temperature varies sinusoidally around a mean value in space. Both two- and three-dimensional simulations are performed over the Rayleigh number range 10^{7}≤Ra≤10^{10} and the wave number range 1≤k≤120 at fixed Prandtl number Pr=0.7. It is demonstrated that spatial temperature modulation with small wave numbers can enhance the global heat transfer (characterized by the Nusselt number Nu) in the turbulent regime, while Nu is close to that in standard RB convection in the case of large wave numbers. Further, we propose two characteristic modulation length scales: one is the penetration depth δ_{k} above which spatial modulation is negligible, the other is the inversion depth δ_{k2} below which there exists a stable inverse temperature gradient. Based on the relative thickness of the thermal boundary layer (BL) δ_{th} compared with these two length scales, the underlying modulation mechanism is physically explained and three regimes are identified: (1) an unperturbed BL regime (δ_{k}<δ_{th}), in which the modulation effect does not penetrate through the thermal BL and Nu is nearly unchanged; (2) a partially modulated BL regime (δ_{k2}<δ_{th}<δ_{k}), in which hot spots trigger more plume emissions from the thermal BL, resulting in Nu enhancement; and (3) a fully modulated BL regime (δ_{th}<δ_{k2}), in which the stable temperature inversion over the cold phases begins to affect convective flows, which alters the trend of Nu enhancement." @default.
• W4281395890 created "2022-05-25" @default.
• W4281395890 creator A5008878252 @default.
• W4281395890 creator A5019777264 @default.
• W4281395890 creator A5037958476 @default.
• W4281395890 creator A5057032296 @default.
• W4281395890 creator A5077779845 @default.
• W4281395890 creator A5084083828 @default.
• W4281395890 date "2022-05-23" @default.
• W4281395890 modified "2023-10-14" @default.
• W4281395890 title "Modulation of turbulent Rayleigh-Bénard convection under spatially harmonic heating" @default.
• W4281395890 cites W1526160613 @default.
• W4281395890 cites W1946784871 @default.
• W4281395890 cites W1969592312 @default.
• W4281395890 cites W2044745726 @default.
• W4281395890 cites W2071774677 @default.
• W4281395890 cites W2079197458 @default.
• W4281395890 cites W2079746545 @default.
• W4281395890 cites W2088485833 @default.
• W4281395890 cites W2102534152 @default.
• W4281395890 cites W2105523589 @default.
• W4281395890 cites W2148759373 @default.
• W4281395890 cites W2150739692 @default.
• W4281395890 cites W2204220327 @default.
• W4281395890 cites W2234050332 @default.
• W4281395890 cites W2276249192 @default.
• W4281395890 cites W2584292404 @default.
• W4281395890 cites W2588414219 @default.
• W4281395890 cites W2742406394 @default.
• W4281395890 cites W2772582492 @default.
• W4281395890 cites W2801821453 @default.
• W4281395890 cites W2909505883 @default.
• W4281395890 cites W2940617671 @default.
• W4281395890 cites W2952918713 @default.
• W4281395890 cites W2964584371 @default.
• W4281395890 cites W2969434856 @default.
• W4281395890 cites W2982829240 @default.
• W4281395890 cites W2995617825 @default.
• W4281395890 cites W2997852510 @default.
• W4281395890 cites W3021219433 @default.
• W4281395890 cites W3028331509 @default.
• W4281395890 cites W3046926959 @default.
• W4281395890 cites W3098617205 @default.
• W4281395890 cites W3098902034 @default.
• W4281395890 cites W3100989144 @default.
• W4281395890 cites W3102439905 @default.
• W4281395890 cites W3102710368 @default.
• W4281395890 cites W3126277374 @default.
• W4281395890 cites W3130984760 @default.
• W4281395890 cites W3134247740 @default.
• W4281395890 cites W3136382481 @default.
• W4281395890 cites W3146954098 @default.
• W4281395890 cites W3185175385 @default.
• W4281395890 cites W3207948905 @default.
• W4281395890 cites W4242603632 @default.
• W4281395890 doi "https://doi.org/10.1103/physreve.105.055107" @default.
• W4281395890 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35706158" @default.
• W4281395890 hasPublicationYear "2022" @default.
• W4281395890 type Work @default.
• W4281395890 citedByCount "4" @default.
• W4281395890 countsByYear W42813958902022 @default.
• W4281395890 countsByYear W42813958902023 @default.
• W4281395890 crossrefType "journal-article" @default.
• W4281395890 hasAuthorship W4281395890A5008878252 @default.
• W4281395890 hasAuthorship W4281395890A5019777264 @default.
• W4281395890 hasAuthorship W4281395890A5037958476 @default.
• W4281395890 hasAuthorship W4281395890A5057032296 @default.
• W4281395890 hasAuthorship W4281395890A5077779845 @default.
• W4281395890 hasAuthorship W4281395890A5084083828 @default.
• W4281395890 hasConcept C106836276 @default.
• W4281395890 hasConcept C10899652 @default.
• W4281395890 hasConcept C120665830 @default.
• W4281395890 hasConcept C121130766 @default.
• W4281395890 hasConcept C121332964 @default.
• W4281395890 hasConcept C123079801 @default.
• W4281395890 hasConcept C130230704 @default.
• W4281395890 hasConcept C132812236 @default.
• W4281395890 hasConcept C182748727 @default.
• W4281395890 hasConcept C196558001 @default.
• W4281395890 hasConcept C24890656 @default.
• W4281395890 hasConcept C41231900 @default.
• W4281395890 hasConcept C54791560 @default.
• W4281395890 hasConcept C57879066 @default.
• W4281395890 hasConcept C72687893 @default.
• W4281395890 hasConceptScore W4281395890C106836276 @default.
• W4281395890 hasConceptScore W4281395890C10899652 @default.
• W4281395890 hasConceptScore W4281395890C120665830 @default.
• W4281395890 hasConceptScore W4281395890C121130766 @default.
• W4281395890 hasConceptScore W4281395890C121332964 @default.
• W4281395890 hasConceptScore W4281395890C123079801 @default.
• W4281395890 hasConceptScore W4281395890C130230704 @default.
• W4281395890 hasConceptScore W4281395890C132812236 @default.
• W4281395890 hasConceptScore W4281395890C182748727 @default.
• W4281395890 hasConceptScore W4281395890C196558001 @default.
• W4281395890 hasConceptScore W4281395890C24890656 @default.
• W4281395890 hasConceptScore W4281395890C41231900 @default.
• W4281395890 hasConceptScore W4281395890C54791560 @default.
• W4281395890 hasConceptScore W4281395890C57879066 @default.
• W4281395890 hasConceptScore W4281395890C72687893 @default.
• W4281395890 hasFunder F4320321001 @default.

• next