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Parametric Study and Optimization of Flow Characteristics of Wire-Nonparallel Plate-Type Electrostatic Air
1Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Power and Energy Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Journal of Fluids Engineering
|August 8, 2018
Summary
This study optimizes electrostatic air accelerators using a 2D model and finite element method. Optimized designs achieved over 39% velocity enhancement, improving wind speed generation.
Area of Science:
- Physics
- Engineering
- Fluid Dynamics
Background:
- Electrostatic air accelerators with wire and nonparallel plate electrodes are of significant interest.
- The underlying physical mechanisms, particularly for multiwire configurations, remain unclear.
- Understanding these mechanisms is crucial for optimizing accelerator performance.
Purpose of the Study:
- To establish and validate a two-dimensional (2D) model for wire-nonparallel plate electrostatic air accelerators.
- To analyze the influence of various parameters on onset voltage, average current, and outlet average velocity.
- To optimize accelerator design for enhanced velocity using experimental and computational methods.
Main Methods:
- Development of a 2D finite element model of the electrostatic air accelerator.
- Experimental validation of the established numerical model.
- Analysis of onset voltage using a quadratic regression extrapolation method.
- Investigation of current and velocity dependencies on interference, discharge, and suction effects.
- Application of the Taguchi method for parameter optimization.
Main Results:
- Onset voltage, average current, and outlet average velocity were analyzed across different electrode configurations and parameters.
- Identified key factors influencing performance: interference effect, discharge effect, and suction effect.
- Determined optimal configurations for single-, double-, and multiwire electrodes to maximize velocity.
- The four-wire electrode configuration yielded the highest velocity.
- Parameter optimization using the Taguchi method resulted in a velocity enhancement exceeding 39%.
Conclusions:
- The study successfully modeled and analyzed wire-nonparallel plate electrostatic air accelerators.
- Optimized parameter combinations significantly enhance air velocity, demonstrating the effectiveness of the proposed methods.
- Findings provide valuable insights for the design and improvement of electrostatic air acceleration technologies.
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