A numerical study using the conjugate heat transfer approach has been performed to investigate effects of boundary flux, conduction effect, and working fluid on thermal characteristics due jet impingement process. Air water are used in this as fluids. For jet, volume method is capture track interface multiphase flow. It found that wall may change fluid-solid interfacial compared with no or pure...

Global Krylov subspace methods are the most efficient and robust methods to solve generalized coupled Sylvester matrix equation. In this paper, we propose the nested splitting conjugate gradient process for solving this equation. This method has inner and outer iterations, which employs the generalized conjugate gradient method as an inner iteration to approximate each outer iterate, while each...

Liquid-infused surfaces (LIS) can reduce friction drag in both laminar and turbulent flows. However, the heat transfer properties of such multi-phase have still not been investigated to a large extent. We use numerical simulations study conjugate liquid-filled grooves. It is shown that increase for liquid flows due recirculation surface texture. For be substantial, thermal conductivity solid mu...

Large eddy simulations were performed for the conjugate heat transfer in a ribbed channel with geometry, that mimics internal cooling passage of gas turbine, using 566, 100, 10, and 1 as solid fluid thermal conductivity ratios (K*) 30,000, 7000 (turbulent flow), 1000 (laminar flow) Reynolds numbers. A fully coupled simulation was conducted immersed boundary method (IBM) dynamic sub-grid-scale (...

aflatoxins are a group of fungal toxic metabolites, which are contaminated certain food commodities. elisa is one of the sensitive methods for detection of aflatoxins. preparation and stabilizing of a proper conjugated tracer for detection of aflatoxins is probably the main step for designing an elisa method. in current study, different stabilizers were applied to stabilize a newly prepared con...

Abstract We present a dual network model to simulate coupled single-phase flow and energy transport in porous media including conditions under which local thermal equilibrium cannot be assumed. The models target applications such as the simulation of catalytic reactors, micro-fluidic experiments, or micro-cooling devices. new technique is based on recently developed algorithm that extracts both...

Abstract The objective of this research is to develop and study iterative methods in the Krylov subspaces for solving systems linear algebraic equations (SLAEs) with non-symmetric sparse matrices high orders arising approximation multi-dimensional boundary value problems on unstructured grids. These are also relevant many applications, including diffusion-convection equations. considered algori...

the fluid flow and heat transfer in lid-driven enclosures filled with cu-water nanofluid is numerically investigated. the moving vertical walls of the enclosure  are maintained in a constant temperature, while the horizontal walls are insulated. the hybrid scheme is used to discretize the convection terms and simpler algorithm is adopted to couple the velocity field and pressure in the momentum...