Matches in SemOpenAlex for { <https://semopenalex.org/work/W2912336393> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W2912336393 abstract "A numerical model describing the behavior of flexible fibers under inertial flows was developed by coupling a discrete element solver with a finite volume solver.Each fiber is discretized into several beam segments, such that the fiber can bend, twist and rotate. The equations of the fiber motion were solved usinga second order accurate explicit scheme (space and time). The three dimensional Navier-Stokes equations describing the motion of the fluid phase was discretizedusing a fourth th order accurate (space and time) unstructured finite volume scheme. The coupling between the discrete fiber phase and the continuous fluid phasewas obtained by a pseudo immersed boundary method as the hydrodynamic force on the fiber segments were calculated based on analytical expressions.Several hydrodynamic force models were analyzed and their validity and short-comings were identified. For Reynolds numbers (Re) at the inertial regime(0.01 < Re < 100, Re defined at the fiber scale), non linear drag force formulations based on the flow past an infinite cylinder was used. For rigid fibers in creeping flow, the drag force formulation from the slender body theory was used. A per unit length hydrodynamic torque model for the fibers was derived from explicit numerical simulations of shear flow past a high aspect ratio cylinder. The developed model was validated against several experimental studies and analytical theories ranging from the creeping flow regime (for rigid fibers) to inertial regimes. In the creeping flow regime, numerical simulations of semi dilute rigid fiber suspensions in shear were performed.The developed model wasable to capture the fiber-fiber hydrodynamic and non-hydrodynamic interactions. The elasto-hydrodynamic interactions at finite Reynolds was validated with against two test cases. In the first test case, the deflection of the free end of a fiber in an uniform flow field was obtained numerically and the results were validated. In the second test case the conformation of long flexible fibers in homogeneous isotropic turbulence was obtained numerically and the results were compared with previous experiments. Two numerical studies were performed to verify the effects of the suspended fibers on carrier phase turbulence and the numerical model was able to reproduce the damping/enhancement phenomena of turbulence in channel and pipe flows as a consequence of the micro-structural evolution of the fibers." @default.
- W2912336393 created "2019-02-21" @default.
- W2912336393 creator A5004462255 @default.
- W2912336393 date "2018-06-15" @default.
- W2912336393 modified "2023-10-15" @default.
- W2912336393 title "Numerical modeling of long flexible fibers in inertial flows." @default.
- W2912336393 hasPublicationYear "2018" @default.
- W2912336393 type Work @default.
- W2912336393 sameAs 2912336393 @default.
- W2912336393 citedByCount "0" @default.
- W2912336393 crossrefType "dissertation" @default.
- W2912336393 hasAuthorship W2912336393A5004462255 @default.
- W2912336393 hasConcept C121332964 @default.
- W2912336393 hasConcept C134306372 @default.
- W2912336393 hasConcept C173386949 @default.
- W2912336393 hasConcept C182748727 @default.
- W2912336393 hasConcept C19191322 @default.
- W2912336393 hasConcept C196558001 @default.
- W2912336393 hasConcept C30811805 @default.
- W2912336393 hasConcept C33923547 @default.
- W2912336393 hasConcept C38349280 @default.
- W2912336393 hasConcept C50478463 @default.
- W2912336393 hasConcept C57879066 @default.
- W2912336393 hasConcept C72921944 @default.
- W2912336393 hasConcept C73000952 @default.
- W2912336393 hasConcept C74650414 @default.
- W2912336393 hasConceptScore W2912336393C121332964 @default.
- W2912336393 hasConceptScore W2912336393C134306372 @default.
- W2912336393 hasConceptScore W2912336393C173386949 @default.
- W2912336393 hasConceptScore W2912336393C182748727 @default.
- W2912336393 hasConceptScore W2912336393C19191322 @default.
- W2912336393 hasConceptScore W2912336393C196558001 @default.
- W2912336393 hasConceptScore W2912336393C30811805 @default.
- W2912336393 hasConceptScore W2912336393C33923547 @default.
- W2912336393 hasConceptScore W2912336393C38349280 @default.
- W2912336393 hasConceptScore W2912336393C50478463 @default.
- W2912336393 hasConceptScore W2912336393C57879066 @default.
- W2912336393 hasConceptScore W2912336393C72921944 @default.
- W2912336393 hasConceptScore W2912336393C73000952 @default.
- W2912336393 hasConceptScore W2912336393C74650414 @default.
- W2912336393 hasLocation W29123363931 @default.
- W2912336393 hasOpenAccess W2912336393 @default.
- W2912336393 hasPrimaryLocation W29123363931 @default.
- W2912336393 hasRelatedWork W1520236757 @default.
- W2912336393 hasRelatedWork W1967759517 @default.
- W2912336393 hasRelatedWork W1974056872 @default.
- W2912336393 hasRelatedWork W1987129119 @default.
- W2912336393 hasRelatedWork W1993031890 @default.
- W2912336393 hasRelatedWork W2007965240 @default.
- W2912336393 hasRelatedWork W203759724 @default.
- W2912336393 hasRelatedWork W2039327722 @default.
- W2912336393 hasRelatedWork W2042279327 @default.
- W2912336393 hasRelatedWork W2044732143 @default.
- W2912336393 hasRelatedWork W2048287745 @default.
- W2912336393 hasRelatedWork W2049726587 @default.
- W2912336393 hasRelatedWork W2089754301 @default.
- W2912336393 hasRelatedWork W2092601180 @default.
- W2912336393 hasRelatedWork W2094156118 @default.
- W2912336393 hasRelatedWork W2162492444 @default.
- W2912336393 hasRelatedWork W2317966491 @default.
- W2912336393 hasRelatedWork W2329579908 @default.
- W2912336393 hasRelatedWork W2358189023 @default.
- W2912336393 hasRelatedWork W3131433086 @default.
- W2912336393 isParatext "false" @default.
- W2912336393 isRetracted "false" @default.
- W2912336393 magId "2912336393" @default.
- W2912336393 workType "dissertation" @default.