EXPERIMENTAL INVESTIGATION OF JET BREAKUP AT LOW WEBER NUMBER

Role of Weber number in primary breakup of turbulent liquid jets in crossflow

Atomization of liquid fuel controls combustion efficiency and pollutant emissions of internal combustion engines and gas turbines (Lefebvre 1998). The liquid jet in crossflow (LJCF) finds application in lean premixed prevaporized (LPP) ducts, afterburners for gas turbines, and combustors for ramjets and scramjets. This flow configuration, which consists of a turbulent liquid jet injected transv...

Experimental and Numerical Aeroacoustic Investigation of Impinging Flows at Low Mach Number

This work presents the development of methods for the experimental and numerical investigation of flow-induced noise. Moreover it offers a systematic validation and comparison of various numerical prediction techniques for small Mach number aeroacoustics. The work is motivated from the need to validate all the calculation steps of aeroacoustic simulations beyond pure analytical solutions. This ...

Experimental Investigations of Elastic Tail Propulsion At Low Reynolds Number

An investigation of a low Strouhal number oscillatory jet submerged in a thin rectangular cavity

Laser Doppler anemometry (LDA) and cinematic particle image velocimetry (PIV) measurements of a low Strouhal number oscillatory jet are compared to two-dimensional computational fluid dynamic (CFD) model predictions. The LDA and PIV measurements are recorded from a water model consisting of a jet generated from a submerged entry nozzle (SEN) immersed in a rectangular cavity. The cavity has a wi...

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...