Simulation by convenient software same as FLUENT was used to predict the friction factor and Nusselt number for forced convection heat transfer of TiO2-water nanofluid. The range of Reynolds number is from 10000 to 100000 to be turbulent flow in a horizontal straight tube with heat flux 5000 w/m2 around it. The volume fraction of nanoparticle was (0.25%, 0.5%, 0.75% and 1%) and diameter of particle is 27nm. The results show that the friction factor and Nusselt number are increasing with increasing of volume fraction. Results compared with the experimental data available in literature and there are good agreements
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机译：使用与FLUENT相同的便捷软件进行仿真，以预测TiO2水纳米流体强制对流换热的摩擦系数和Nusselt数。雷诺数的范围是10000至100000，这是在水平直管中的湍流，其周围的热通量为5000 w / m2。纳米粒子的体积分数为（0.25％，0.5％，0.75％和1％），粒子的直径为27nm。结果表明，随着体积分数的增加，摩擦系数和Nusselt数均增加。结果与文献中的实验数据进行了比较，并取得了很好的一致
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