People

Current Students

 

Muthuraman Karthik

Mechanical Engineering (MS)

Expected Graduation: Dec 2010

Email: kmuthura@uncc.edu

 

Rayleigh-Taylor Instability

This research deals with single mode Rayleigh Taylor instability and the flow evolution.Recent simulations and experiments have shown the late-time Rayleigh-Taylor (RT) saturation velocity is sensitive to the appearance of secondary Kelvin-Helmholtz (KH) vortices. Specifically, RT bubbles experience a late surge due to the induced velocity of the KH vortices and saturate at a Froude number twice that predicted by potential flow models. We describe this picture with a simple toy model that idealizes the KH rollups as a pair of counter-rotating point vortices. From classical linear theory, the KH growth rates also depend on several parameters such as viscosity, surface tension, and density difference between the fluid streams. We have studied the influence of these parameters on the fundamental RT mode using high aspect ratio, single mode numerical simulations, and will discuss our findings. At very late time, turbulent mixing occurs due to further instabilities. The results are expected to be of relevance to turbulent mix models that are based on bubble growth and merger.

 

Jahed Hossain

Mechanical Engineering (MS)

Expected Graduation: Dec 2011

Email: mhossai1@uncc.edu

Turbulent modeling for a laboratory scale V Flame

 

Nitesh Attal

Mechanical Engineering (MS)

Expected Graduation: Dec 2011

Email: nattal@uncc.edu

Implicit large eddy simmulation of turbulent combustion

 

Past Students

 

Amol Dhotre

Mechanical Engineering (MS)

Graduation: Aug 2009

Email: adhotre@uncc.edu