Consecutive PIV Analyses on a Finite-Amplitude Pulsating Jet

Infrared Observations of Large Amplitude Pulsating Stars

Our understanding of large amplitude pulsating stars and their status in stellar evolution is briefly reviewed. The paper then describes the near-infrared light curves of various asymptotic giant branch stars, concentrating on possible evidence for changing mass-loss rates. The stars discussed include oxygenand carbon-rich Miras, OH/IR stars, thick-shelled carbon stars and symbiotic Miras. Fina...

An Hmv Mapping Study of a Pulsating Jet System

A new system for the generation of hydrodynamic modulated voltammetry (HMV) is presented. This system consists of an oscillating jet produced through the mechanical vibration of a large diaphragm. The structure of the cell is such that a relatively small vibration is transferred to a large fluid flow at the jet outlet. Positioning of an electrode (Pt, 0.5 mm or 25 μm diameter) over the exit of ...

Time-resolved Piv and Pressure Measurements of Oscillating and Pulsating Flow in a Rapid Expansion

Separating oscillating and pulsating flows in an internal adverse pressure gradient geometry are studied experimentally. Time-resolved PIV measurements and simultaneous pressure measurements reveal that, in oscillating flow, during the accelerating portion of the cycle, the flow remains attached in spite of a very large adverse pressure gradient. During the decelerating portion of the cycle, th...

Time-resolved PIV investigation on the unsteadiness of a low reynolds number confined impinging jet

*1 School of Mechanical Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea. *2 Department of Naval Architecture and Ocean Engineering, Pusan National University, San 30, Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea. *3 Advanced Ship Engineering Research Center (ASERC), Pusan National University, San 30, Jangjeon-dong, G...

Use of Acoustic Waves for Pulsating Water Jet Generation