FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2892340744> ?p ?o ?g. }

• W2892340744 abstract "We consider the nonlinear optimal control of bypass transition in a boundary layer flow subjected to a pair of free stream vortical perturbations using a receding horizon approach. The optimal control problem is solved using the Lagrange variational technique that results in a set of adjoint equations, used to obtain the optimal wall actuation (blowing and suction from a control slot located in the transition region). The receding horizon approach enables the application of control action over a longer time period, and allows the extraction of time-averaged statistics as well as investigation of the control effect downstream of the control slot. The results show that the controlled flow energy is initially reduced in the streamwise direction and then increased because transition still occurs. The distribution of the optimal control velocity responds to the flow activity above and upstream of the control slot. The control effect propagates downstream of the slot and the flow energy is reduced up to the exit of the computational domain. The mean drag reduction is 55% and 10% in the control region and downstream of the slot, respectively. The control mechanism is investigated by examining the second order statistics and the two-point correlations. It is found that in the upstream (left) side of the slot, the controller counteracts the near wall high speed streaks and reduces the turbulent shear stress; this is akin to opposition control in channel flow, and since the time-average control velocity is positive, it is more similar to blowing-only opposition control. In the downstream (right) side of the slot, the controller reacts to the impingement of turbulent spots that have been produced upstream and inside the boundary layer (top-bottom mechanism). The control velocity is positive and increases in the streamwise direction, and the flow behavior is similar to that of uniform blowing." @default.
• W2892340744 created "2018-09-27" @default.
• W2892340744 creator A5029400677 @default.
• W2892340744 creator A5080932601 @default.
• W2892340744 date "2018-09-22" @default.
• W2892340744 modified "2023-09-25" @default.
• W2892340744 title "Nonlinear optimal control of bypass transition using a receding horizon approach" @default.
• W2892340744 cites W1570245886 @default.
• W2892340744 cites W1965779019 @default.
• W2892340744 cites W1989179379 @default.
• W2892340744 cites W2006970600 @default.
• W2892340744 cites W2011799027 @default.
• W2892340744 cites W2017479642 @default.
• W2892340744 cites W2035192263 @default.
• W2892340744 cites W2037083908 @default.
• W2892340744 cites W2042202825 @default.
• W2892340744 cites W2046349900 @default.
• W2892340744 cites W2050195777 @default.
• W2892340744 cites W2054076436 @default.
• W2892340744 cites W2059084955 @default.
• W2892340744 cites W2064133617 @default.
• W2892340744 cites W2064339969 @default.
• W2892340744 cites W2065888321 @default.
• W2892340744 cites W2067764122 @default.
• W2892340744 cites W2071049996 @default.
• W2892340744 cites W2081222491 @default.
• W2892340744 cites W2082193626 @default.
• W2892340744 cites W2086361868 @default.
• W2892340744 cites W2086565191 @default.
• W2892340744 cites W2089371117 @default.
• W2892340744 cites W2091931764 @default.
• W2892340744 cites W2114361552 @default.
• W2892340744 cites W2128713754 @default.
• W2892340744 cites W2131954084 @default.
• W2892340744 cites W2133379988 @default.
• W2892340744 cites W2143051062 @default.
• W2892340744 cites W2150958344 @default.
• W2892340744 cites W2152178640 @default.
• W2892340744 cites W2234308368 @default.
• W2892340744 cites W2292717020 @default.
• W2892340744 cites W2327947625 @default.
• W2892340744 cites W2334396898 @default.
• W2892340744 cites W2513845471 @default.
• W2892340744 cites W2614841738 @default.
• W2892340744 cites W2616601527 @default.
• W2892340744 cites W3099573940 @default.
• W2892340744 cites W764422886 @default.
• W2892340744 doi "https://doi.org/10.48550/arxiv.1809.08388" @default.
• W2892340744 hasPublicationYear "2018" @default.
• W2892340744 type Work @default.
• W2892340744 sameAs 2892340744 @default.
• W2892340744 citedByCount "0" @default.
• W2892340744 crossrefType "posted-content" @default.
• W2892340744 hasAuthorship W2892340744A5029400677 @default.
• W2892340744 hasAuthorship W2892340744A5080932601 @default.
• W2892340744 hasBestOaLocation W28923407441 @default.
• W2892340744 hasConcept C111603439 @default.
• W2892340744 hasConcept C121332964 @default.
• W2892340744 hasConcept C126255220 @default.
• W2892340744 hasConcept C154945302 @default.
• W2892340744 hasConcept C158622935 @default.
• W2892340744 hasConcept C186766456 @default.
• W2892340744 hasConcept C191172861 @default.
• W2892340744 hasConcept C196558001 @default.
• W2892340744 hasConcept C2775924081 @default.
• W2892340744 hasConcept C31258907 @default.
• W2892340744 hasConcept C33923547 @default.
• W2892340744 hasConcept C41008148 @default.
• W2892340744 hasConcept C47446073 @default.
• W2892340744 hasConcept C57879066 @default.
• W2892340744 hasConcept C62520636 @default.
• W2892340744 hasConcept C72921944 @default.
• W2892340744 hasConcept C91575142 @default.
• W2892340744 hasConceptScore W2892340744C111603439 @default.
• W2892340744 hasConceptScore W2892340744C121332964 @default.
• W2892340744 hasConceptScore W2892340744C126255220 @default.
• W2892340744 hasConceptScore W2892340744C154945302 @default.
• W2892340744 hasConceptScore W2892340744C158622935 @default.
• W2892340744 hasConceptScore W2892340744C186766456 @default.
• W2892340744 hasConceptScore W2892340744C191172861 @default.
• W2892340744 hasConceptScore W2892340744C196558001 @default.
• W2892340744 hasConceptScore W2892340744C2775924081 @default.
• W2892340744 hasConceptScore W2892340744C31258907 @default.
• W2892340744 hasConceptScore W2892340744C33923547 @default.
• W2892340744 hasConceptScore W2892340744C41008148 @default.
• W2892340744 hasConceptScore W2892340744C47446073 @default.
• W2892340744 hasConceptScore W2892340744C57879066 @default.
• W2892340744 hasConceptScore W2892340744C62520636 @default.
• W2892340744 hasConceptScore W2892340744C72921944 @default.
• W2892340744 hasConceptScore W2892340744C91575142 @default.
• W2892340744 hasLocation W28923407441 @default.
• W2892340744 hasOpenAccess W2892340744 @default.
• W2892340744 hasPrimaryLocation W28923407441 @default.
• W2892340744 hasRelatedWork W1483948306 @default.
• W2892340744 hasRelatedWork W2065320968 @default.
• W2892340744 hasRelatedWork W2138414520 @default.
• W2892340744 hasRelatedWork W2599979290 @default.
• W2892340744 hasRelatedWork W280439362 @default.
• W2892340744 hasRelatedWork W2990558617 @default.
• W2892340744 hasRelatedWork W3098778026 @default.

• next