Two-phase flow pressure drop modelling in horizontal pipes with different diameters

The two-phase frictional pressure drop has a dominant effect in many industrial applications associated with the multiphase flow. This study investigated the accuracy of several available methods for predicting two-phase frictional pressure drop of different pipe diameters using 4124 experimental da...

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Bibliographic Details
Published in:Nuclear engineering and design 2022-08, Vol.395, p.111863, Article 111863
Main Authors: Faraji, Foad, Santim, Christiano, Chong, Perk Lin, Hamad, Faik
Format: Article
Language:English
Subjects:
Algorithms
Artificial neural networks
Back propagation
Back propagation networks
Bayesian analysis
Data points
Datasets
Error analysis
Genetic algorithms
Genetic analysis
Industrial applications
Mathematical models
Multilayer perceptrons
Multiphase flow
Neural networks
Particle swarm optimization
Pressure
Pressure drop
Radial basis function
Regularization
Sensitivity analysis
Statistical analysis
Two phase flow
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Summary:The two-phase frictional pressure drop has a dominant effect in many industrial applications associated with the multiphase flow. This study investigated the accuracy of several available methods for predicting two-phase frictional pressure drop of different pipe diameters using 4124 experimental data points. It is observed that the performance of the existing methods is poor in a wide range of operating conditions. Then, several Artificial Neural Network models were proposed, including six multilayer perceptron (MLP) and one Radial Basis Function (RBF) using the same data sets. The weights and biases of the ANNs were optimized using Levenberg-Marquardt (LM), Bayesian Regularization (BR), Scaled Conjugate Gradient (SCG), Resilient Backpropagation (RB), Particle Swarm Optimization (PSO) and Genetic Algorithm (GA). Statistical error analysis indicates that neural network incorporated with the Genetic Algorithm (MLP-GA) predicts the entire data set with a Root Mean Square Error of 0.525 and an Average Absolute Relative Error percentage of 6.722. Finally, the sensitivity analysis was carried out, indicating that the mass flux (G) has the highest direct impact on the two-phase frictional pressure drop.
ISSN:0029-5493
1872-759X
DOI:10.1016/j.nucengdes.2022.111863