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首页> 外文期刊>Heat Transfer Engineering >Assessment of Mixture and Eulerian Multiphase Models in Predicting the Thermo-Fluidic Transport Characteristics for Fly Ash-Water Slurry Flow in Straight Horizontal Pipeline
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Assessment of Mixture and Eulerian Multiphase Models in Predicting the Thermo-Fluidic Transport Characteristics for Fly Ash-Water Slurry Flow in Straight Horizontal Pipeline

机译：混合和欧拉多相模型在预测水平直管粉煤灰水淤浆流热流体传输特性中的评估

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摘要

The thermo-fluidic transport characteristics of the fly ash-water slurry flow in a straight horizontal pipe are predicted by deploying two different multiphase modeling strategies, viz. the mixture and the Eulerian multiphase models. Comparisons between the two model predictions in terms of the pressure drop and heat transfer coefficient are done along with the comparisons between the single (water) and the two phase system (slurry). Spherical fly ash particles, with diameter of 13 mu m for an average inflow velocity ranging from 1 to 5 m/s and particle concentrations within 0-40% by volume for each velocity are considered as the dispersed phase carried by the carrier phase water. Significant differences between the two model predictions can be observed both from the qualitative and quantitative perspectives. This finally leads to the appropriate choice of the multiphase model for predicting the thermo-fluidic transport characteristics in slurry flow.
机译：通过部署两种不同的多相建模策略，即预测水平直管中粉煤灰-水浆流的热流体传输特性。混合物和欧拉多相模型。就压降和传热系数而言，对两个模型预测之间的比较，以及对单相（水）和两相系统（浆液）之间的比较进行了比较。球形飞灰颗粒的直径为13μm，平均流入速度为1至5 m / s，且每种速度的颗粒浓度在0-40％（体积）以内，被认为是载体相水携带的分散相。可以从定性和定量两个角度观察到两种模型预测之间的显着差异。最后，这导致可以适当选择多相模型来预测浆液中的热流体传输特性。

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  • 来源
    《Heat Transfer Engineering》 |2019年第8期|679-692|共14页
  • 作者

    Nayak Bibhuti Bhusan; Chatterjee Dipankar;

  • 作者单位

    Natl Inst Technol, Dept Mech Engn, Durgapur, India;

    CSIR Cent Mech Engn Res Inst, Adv Design & Anal Grp, MG Ave, Durgapur 713209, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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