What question did this study set out to answer?

To investigate the complex three-field (gas, droplet, liquid film) condensation behaviors and phase-change dynamics within supersonic separators to enhance gas-liquid separation efficiency.

July 15, 2022EnergyOpen Access

Numerical simulation of supersonic condensation flows using Eulerian-Lagrangian and Eulerian wall film models

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To investigate the complex three-field (gas, droplet, liquid film) condensation behaviors and phase-change dynamics within supersonic separators to enhance gas-liquid separation efficiency.
Developed a three-field two-phase flow framework coupling an Eulerian-Lagrangian method with an Eulerian wall film model to account for heat and mass transfer.
Validated the numerical model against three independent experimental datasets.
Conducted sensitivity analyses across variations in inlet droplet diameter, inlet droplet mass flow rate, and gas pressure.
Identified inlet mass flow rate of heterogeneous droplets as the primary determinant of maximum wall film thickness, measuring approximately 85.2 μm at 0.001 kg/s.
Achieved optimized separation performance with an inlet droplet diameter of 2.2 μm, flow rate of 0.0015 kg/s, and pressure of 3 atm, yielding a 100% droplet removal rate, 57.4% water vapor removal rate, and 29.1% dew point depression.

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Implication

Simulation study demonstrates improved separation efficiency in supersonic separators, indicating key operating conditions for natural gas purification.

Cite This Study

Ding et al. (2022) studied this question.

synapsesocial.com/papers/6ab09b127e688948bcebf5cd https://doi.org/10.1016/j.energy.2022.124833

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Implication

Simulation study demonstrates improved separation efficiency in supersonic separators, indicating key operating conditions for natural gas purification.

Numerical simulation of supersonic condensation flows using Eulerian-Lagrangian and Eulerian wall film models

Key Points

Discussion

Implication

Cite This Study

Numerical simulation of supersonic condensation flows using Eulerian-Lagrangian and Eulerian wall film models

Key Points

Discussion

Implication

Cite This Study

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