Results 101 to 110 of about 9,398,681 (287)
Simulation based investigation of Nusselt number and Poiseuille number in helical microchannels
International Journal of ThermofluidsSimulation based work carried out in order to understand the thermohydraulic characteristics of fluid flow in helical microchannel, with circular cross-section, that is subjected to constant heat flux is detailed in this work.
Shamsa Al Ketbi +4 more
doaj
Semiconvection: numerical simulations [PDF]
, 2013 A grid of numerical simulations of double-diffusive convection is presented for the astrophysical case where viscosity (Prandtl number Pr) and solute diffusivity (Lewis number Le) are much smaller than the thermal diffusivity.
Spruit, H., Zaussinger, F.
core +2 more sources
Self-similarity of solitary waves on inertia-dominated falling liquid films [PDF]
, 2016 We propose consistent scaling of solitary waves on inertia-dominated falling liquid films, which accurately accounts for the driving physical mechanisms and leads to a self-similar characterization of solitary waves.
Charogiannis, A +5 more
core +3 more sources
Fronts in reactive convection: bounds, stability and instability
, 2002 We consider front propagation in a reactive Boussinesq system in an infinite vertical strip. We establish nonlinear stability of planar fronts for narrow domains when the Rayleigh number is not too large.
Constantin, Peter +2 more
core +1 more source
New asymptotic heat transfer model in thin liquid films
, 2017 In this article, we present a model of heat transfer occurring through a li\-quid film flowing down a vertical wall. This new model is formally derived using the method of asymptotic expansions by introducing appropriately chosen dimensionless variables.
Chhay, Marx +3 more
core +2 more sources
International Journal of Applied Mechanics and EngineeringThis work analyzes the impact of viscous dissipation on an unstable stretching surface in a porous medium with heat generation and thermal radiation—an important factor for numerous engineering applications like cooling baths and plastic sheets.
Samuel Oluyemi Owoeye +3 more
doaj +1 more source
Effects of Slip Boundaries on Mixed Convection of Al2O3-water Nanofluid in Microcavity [PDF]
International Journal of Advanced Design and Manufacturing Technology, 2015 Due to the importance of the slip effect on modeling of microchannel and microcavity, numerical investigations have been introduced in this work for studying the mixed convection of Al2O3-water nanofluid in a square microcavity.
A. R. Rahmati +3 more
doaj
A thermal model for prediction of the Nusselt number in a pipe with chaotic flow
Applied Thermal Engineering, 2002 It is currently well established that Lagrangian chaos intensifies heat transfer significantly [J. Fluid Mech. 209 (1989) 335]. It thus appears to be a promising technique for the design of compact, high-performance heat exchangers and heat exchanger-reactors. However, the design of such apparatus requires extensive calculations.
Lemenand, Thierry, Peerhossaini, Hassan
openaire +4 more sources
Fluid Flow and Heat Transfer in Serpentine Channels at Low Reynolds Numbers [PDF]
, 1997 Fluid flow and heat transfer in a two-dimensional serpentine channel was investigated numerically for Reynolds numbers between 175 and 725. A fifth-order finite differencing scheme was employed to carry out the computations. Three different geometries
Vanka, S.P., Volker, S.
core
Numerical study of heat transfer and flow structure over a microscale backstep
Alexandria Engineering Journal, 2021 This study presents a two and three-dimensional numerical simulations of a flow-through a sudden expansion and contraction microchannels. The finite element method was used to discretize the equations governing the physical model.
Hassnia Hajji +5 more
doaj