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Design and Optimization Strategies of a High-Performance Vented Box
Published on: June 9, 2023
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Optimization on Secondary Flow and Auxiliary Entrainment Inlets of an Ejector by Using Three-Dimensional Numerical
Jia Yan1, Jing Jiang2, Zheng Wang1
1School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China.
Entropy (Basel, Switzerland)
|September 23, 2022
Summary
Optimizing ejector design with auxiliary entrainment significantly boosts performance. Three-dimensional simulations reveal key geometric factors for enhanced entrainment ratio (ER).
Area of Science:
- Fluid dynamics
- Thermodynamics
- Mechanical engineering
Background:
- Ejector performance optimization is crucial for various engineering applications.
- Understanding the impact of geometric parameters on ejector efficiency is essential.
Purpose of the Study:
- To optimize the secondary flow inlet and introduce an auxiliary entrainment for improved ejector performance.
- To investigate the influence of geometric parameters of the auxiliary entrainment inlet on the ejector's entrainment ratio (ER).
Main Methods:
- Three-dimensional numerical simulations were employed.
- Optimization of secondary flow inlet geometry (area, angle).
- Optimization of auxiliary entrainment inlet geometry (position, area, angle).
Main Results:
- Vertical secondary flow orientation showed slightly better performance than parallel.
- Secondary flow inlet area significantly impacts ER up to a certain threshold.
- Auxiliary entrainment inlet optimization increased ER by 97.7% through key geometric adjustments.
- Auxiliary entrainment optimization had a more substantial effect than secondary flow inlet optimization.
Conclusions:
- Auxiliary entrainment is a highly effective strategy for enhancing ejector performance.
- Geometric optimization of the auxiliary entrainment inlet is critical for maximizing ejector efficiency.
- This study provides novel insights into auxiliary entrainment effects using 3D simulations.
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