Numerical study of nanofluids forced convection in a microchannel with an Eulerian– Lagrangian two–phase methodنوزدهمین همایش سالانه مهندسی مکانیک

• NUMERICAL COMPUTATION OF MULTI COMPONENT TWO PHASE FLOW IN THE CATHODE OF PEM FUEL CELLS

  A two dimensional, unsteady, isothermal and two–phase flow of reactant–product mixture in the air–side electrode of proton exchange membrane fuel cells (PEMFC) is studied numerically in the present study. The mixture is composed of oxygen, nitrogen, liquid water and water vapor. The overning equations are two species conservation, a...

• Wave length effect on Kelvin –Helmholtz instability in oil–gas two phase stratified flow using CFD modeling

  In this article, transient condition of two–phase stratified gas–liquid flow was investigated using numerical simulation. The base of the method is including one–space dimensional transient solution of the governing equations using two–fluid model. In the present work, we use an analogy between the SIMPLE algorithm in two–space...

• Particles trajectory simulation in closed horizontal channels by Eulerian–Lagrangian approach

  In this paper the trajectory of thin solid particles in air flow while passing a lab channel with a rectangular cross–section, have been simulated. Here we have used the Eulerian–Lagranjian method for modeling the two–phase flow, and the numerical solutions to governing equations have been made through a finite volume method. In...

• Experimental Investigation of pressure drop in concurrent air–water flow

  Pressure drop measurements for horizontal stratified two–phase flow of air water have been performed in a channel with 5.33m length, 0.20m width, and 0.1m height. The gas and liquid Reynolds numbers were varied in the 54000–87000 and 13000–23000 ranges, respectively. Acorrelation was proposed for predicting pressure drop in horizontal...

• A Numerical Study of Two–Phase Transonic Steam Flow through Convergence–Divergence Nozzles with Different Rates of Expansion

  During the transonic flow of steam in a divergence nozzle, flow first supercools and then nucleates to become a two–phase droplet flow. This phenomenon especially occurs in the last stages of steam turbines and affects the performance. In this research, a numerical scheme for two–phase flow in nozzle passages is developed. An Eulerian...

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