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Related Experiment Video

Updated: May 23, 2026

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Published on: October 2, 2016

[CFD numerical simulation onto the gas-liquid two-phase flow behavior during vehicle refueling process].

Jia-Qing Chen¹, Nan Zhang, Jin-Hui Wang

¹Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China. Jiaqing@bipt.edu.cn

Huan Jing Ke Xue= Huanjing Kexue

|April 4, 2012

Summary

Vehicle refueling vapor emissions are increasingly regulated. This study simulates refueling, revealing higher flow rates increase tank pressure and may cause backflow, impacting nozzle shut-off.

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Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

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In Situ Visualization of the Phase Behavior of Oil Samples Under Refinery Process Conditions

In Situ Visualization of the Phase Behavior of Oil Samples Under Refinery Process Conditions

Published on: February 21, 2017

Area of Science:

Environmental Engineering
Fluid Dynamics
Computational Mechanics

Context:

Growing environmental regulations necessitate understanding vehicle refueling vapor emissions.
Domestic research on vehicle refueling simulation lags behind international efforts.
The physical system of "Nozzle + filler pipe + gasoline storage tank + vent pipe" is simplified for analysis.

Purpose:

To establish a numerical simulation model for gas-liquid two-phase flow during vehicle refueling.
To investigate the influence of refueling velocity on static pressure in the gasoline tank's vent space.
To analyze the back-flowing phenomenon and its relation to refueling parameters.

Summary:

A numerical simulation model was developed using Volume of Fluid (VOF) and Re-Normalization Group kappa-epsilon models in Fluent CFD software.
The study determined optimal mesh discretization and boundary conditions using Gambit software.
Analysis revealed that increased refueling flow rate and velocity elevate static pressure in the vent space, leading to potential liquid backflow and premature nozzle shut-off.

Impact:

The research provides a foundational understanding for domestic development of vehicle refueling technologies and emissions control.
Identifies a critical relationship between refueling parameters and vapor pressure dynamics.
Offers insights into preventing premature nozzle shut-off during high-flow refueling events.