An in-silico proof-of-concept of electrohydrodynamic air amplifier for low-energy airflow generation

Electrohydrodynamic (EHD) technology generates airflow without moving parts, making it a reliable solution for various low-energy applications. EHD-based devices enhance patterns, resulting in significant energy savings air-moving systems. This airflow, also known as ionic wind, is created through Corona discharge, which accelerates electrically charged air molecules strong electric field. Currently, EHD's low electrical-to-mechanical conversion rate still limit its ability to generate large flow rates. The objective of this study the devices, applications where EHD can be used an effective auxiliary with pressure lift, distribution and circulation. To end, novel bladeless propulsion device proposed that combines wind amplification based on Coanda phenomenon amplify EHD-generated We assess performance by investigating fluid dynamics, electrostatics, consumption. demonstrate proof-of-concept innovative fully-coupled simulation approach corona discharge modeling. explore different design parameters conceptual amplifier, such potential (10–30 kV) electrode, electrode spacing (5–25 mm), channel height (30–150 mm). studies are performed 2D constrained 2D-axisymmetric open space design, respectively. In order quantify benefit EHD, results benchmarked regular setup amplifying vane well comparable commercial axial fan. terms per power input. Here, amplifier configuration increases total 59% compared 48% fan same electrical Amplification factors 16.5–19 achieved 5.5 6.4 configuration. predicted consumption 4–17.5 W configuration, rates up 140 m3 h−1. These show promising way high rise at cost, provide more sustainable alternative conventional fans specific applications..