First thrust measurements in ionic multi-propeller rotational engines

作     者：Adrian Ieta Marius Chirita 

作者机构：Electrical and Computer Engineering DepartmentSUNY OswegoOswegoNY 13126-3599USA Applied Physics/Condensed Matter DepartmentNational Institute for Research and Development in Electrochemistry and Condensed MatterTimisoaraRO-300224Romania 

出 版 物：《Propulsion and Power Research》 (推进与动力（英文）)

年 卷 期：2023年第12卷第1期

页      面：44-58页

核心收录：

学科分类：08[工学] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：supported by a grant of the Romanian Ministry of Education and Research CCCDI project number PN-Ⅲ-P2-2.1-PED-2019-3646 within PNCDI Ⅲ 

主　　题：Ionic wind EHD pump Electrohydrodynamics Corona discharge Thrust-to-power Propeller Ion propulsion Plasma thrusters Electroaerodynamic thrusters Ionocraft 

摘      要：Rotary ionic engines(RIEs)with multi-coaxial contra-rotating propellers(12.6 cm diameter)and their axial thrust are investigated in laboratory conditions,in air at atmospheric pressure,for the first *** goal is to evaluate more advantageous configurations that may be scaled up and further help with development of rotary ionic *** propellers are designed with regular pin-emitter electrodes placed coaxially inside a cylindrical collector *** high voltage is applied,propellers spin generating conventional axial thrust which is measured with an electronic scale in a“see-saw*** to 40 mN thrust was obtained in single propeller RIE at 2600 rpm,0.34 mA,37.5 kV,and an optimal collector electrode diameter of 17 *** thrust can be obtained with two and three propellers at constant current per propeller but at a decreased *** the axial propeller-separation showed that propeller-interaction is minimal above 5 ***-to-power and thrust-tocurrent ratios were calculated and *** experimentally confirm here for the first time that within certain limits,the thrust-to-power variation can be assessed by the propeller kinetic energy-to-power ratio and also by the impedance of the gap(voltage-to-current ratio).A comparison of RIE arrays performance with one,two,and three coaxial propellers and the same total number of propellers per array(six)is also *** arrays with multi-coaxial propellers can provide larger thrust densities than single-propeller ***,arrays employing two coaxial propeller unit may be more weight effective.