Basic characteristics of array of pulsatile jet

Petr Novotný¹, Tomáš Vít² and Magda Vestfálová¹

¹ TU Liberec, Studentskâ 2, 461 17, Liberec, Czech Republic
petr.novotny@tul.cz, magda.vestfalova©tul.cz
² Istitute of Thermomechanics v.v.vi., CAS, Dolejskova 5, Praha 8
tomas.vit@tul.cz

Published online: 16 April 2012

Abstract

The presented paper shows the results of measurement of basic characteristics of array of pulsatile jets which are used to enhance the efficiency of ejectors. Four pulsatile jets forms cross like structure where perpendicular couples are operating in two basic modes (a) in phase and (b) in antiphase. Paper presents phase averaged velocity profiles and velocity fields. All of the presented experiments are realized using hot wire anemometry method.