Pneumatic Actuators with "Bouncing" Air – Jet - Part I: Numerical solutions

0346479 - ÚT 2011 RIV PL eng J - Journal Article
Tesař, Václav - Peszyński, K.
Pneumatic Actuators with "Bouncing" Air – Jet - Part I: Numerical solutions.
Applied Mechanics and Engineering. Roč. 15, č. 3 (2010), s. 855-865. ISSN 1425-1655
R&D Projects: GA ČR GA101/07/1499; GA AV ČR IAA200760705
Institutional research plan: CEZ:AV0Z20760514
Keywords : jet * momentum balance * flow visualization
Subject RIV: BK - Fluid Dynamics

Described actuator generating a force action on a body by an air jet is based on the unusual and seemingly impossible mechanism of the jet “reflecting” from an impact on a wall. The trick is the wall is provided with perforations that allow a part of the jet to pass through. To be compensated by the remaining part, this changes its flow direction into the opposite side, forming the “reflected” jet. The phenomenon is investigated by flowfield computations.
Permanent Link: http://hdl.handle.net/11104/0187500