Stratified thermal storage promotes energy sustainability by storing excess energy during times of low demand for later use making it possible to integrate renewable energy sources like solar and wind.This communicati...Stratified thermal storage promotes energy sustainability by storing excess energy during times of low demand for later use making it possible to integrate renewable energy sources like solar and wind.This communication discusses the significance of triple stratifica-tion using the Cattaneo-Christov model in the bioconvectiveflow of thixotropicfluid coexisting with nanoparticles and gyrotactic microorganisms.The Cattaneo-Christov heat and massflux is incorporated into thefluid model allowing more accurate prediction of heat and mass phenomena in thefluid system.The governing partial differential equations that describefluidflow are parametrized to yield an ordinary differential equation system by adopting suitable transformations.The series solutions are obtained by applying the homotopy analysis method(HAM).The effects of relevant parameters on the various profiles are revealed and accurately reported.It is observed that amplified thermal stratification lowers the temperature of thefluid.Also,Brownian motion is used to illustrate the random movement of small particles suspended in liquids,and it is envisioned that the concentration distribution is significantly influenced by the Brownian motion of nanoparticles.展开更多
This article deals with boundary layer analysis of magnetohydrodynamics on an unsteady chemically reactive micropolar rotating fluid flow past a semi-infinite vertical plate with been developed under Boussinesq approx...This article deals with boundary layer analysis of magnetohydrodynamics on an unsteady chemically reactive micropolar rotating fluid flow past a semi-infinite vertical plate with been developed under Boussinesq approximation.The governing partial differential equations are transformed into a set of coupled partial differential equations using suitable dimensionless quantities.The resultant equations are solved numerically using variational finite element method.A parametric study illustrating the influence of different pertinent parameters is performed and the numerical results for translational velocity,microrotation velocity,temperature and concentration distributions near the boundary layers are discussed and presented graphically for the parametric variations.Finally,the skin-friction,wall couple stress,surface heat transfer and mass transfer rate dependency on the emerging thermo-physical parameters are also tabulated.The finite element code is benchmarked with the results reported in the literature to check the validity and accuracy under some limiting cases and excellent agreement with published solutions is achieved.展开更多
文摘Stratified thermal storage promotes energy sustainability by storing excess energy during times of low demand for later use making it possible to integrate renewable energy sources like solar and wind.This communication discusses the significance of triple stratifica-tion using the Cattaneo-Christov model in the bioconvectiveflow of thixotropicfluid coexisting with nanoparticles and gyrotactic microorganisms.The Cattaneo-Christov heat and massflux is incorporated into thefluid model allowing more accurate prediction of heat and mass phenomena in thefluid system.The governing partial differential equations that describefluidflow are parametrized to yield an ordinary differential equation system by adopting suitable transformations.The series solutions are obtained by applying the homotopy analysis method(HAM).The effects of relevant parameters on the various profiles are revealed and accurately reported.It is observed that amplified thermal stratification lowers the temperature of thefluid.Also,Brownian motion is used to illustrate the random movement of small particles suspended in liquids,and it is envisioned that the concentration distribution is significantly influenced by the Brownian motion of nanoparticles.
基金The authors are thankful to the University Grants Commission,New Delhi,India for providing financial assistance to carry out this research work under UGC-Major Research Project[F.No.42-22/2013(SR)].
文摘This article deals with boundary layer analysis of magnetohydrodynamics on an unsteady chemically reactive micropolar rotating fluid flow past a semi-infinite vertical plate with been developed under Boussinesq approximation.The governing partial differential equations are transformed into a set of coupled partial differential equations using suitable dimensionless quantities.The resultant equations are solved numerically using variational finite element method.A parametric study illustrating the influence of different pertinent parameters is performed and the numerical results for translational velocity,microrotation velocity,temperature and concentration distributions near the boundary layers are discussed and presented graphically for the parametric variations.Finally,the skin-friction,wall couple stress,surface heat transfer and mass transfer rate dependency on the emerging thermo-physical parameters are also tabulated.The finite element code is benchmarked with the results reported in the literature to check the validity and accuracy under some limiting cases and excellent agreement with published solutions is achieved.
