PDFs & Technicians Graduates Undergraduates Past Students
Shadi Ansari
shadi1@ualberta.ca
Graduate
Master of Science in Mechanical Engineering (2016)
Bachelor of Science in Chemical Engineering (2012)
RGL Group
Research Interests: Particle image velocimetry (PIV), Electrokinetics, SAGD, Flow through narrow channels, Fluid rheology
The main area of my study is investigation of flow through narrow slots using particle image velocimetry (PIV). The aim of my M.Sc. study was to find the effect of the angle of keystone slots, and the rheology of the fluid on the velocity distribution along the channel. In order to study these effects PIV experimental setup was developed. Based on the observations, it was concluded that the effect of slot angle was significant in the velocity distribution. Interesting phenomena such as separation were also observed for flow of water through slots with angles less than 6°.
Determining the rheology of the fluid based on the velocity profile from PIV measurements for flow through long mini channel was also included in my previous work. These experiments used Köhler illumination and microscopic lens in the PIV setup to focus on the width of channel. The results of this study had a good agreement with corresponding theories of the Newtonian and non-Newtonian flows through narrow channels. It was confirmed that the rheology of the fluid can be determine from the velocity measurement of a fluid.
The primary goal for my PhD is to study the effect of applied electric field on the velocity distribution of polar fluids and the movement of charged particles in the fluid. In order to find the velocity distribution of fluid, PIV measurements will be used. A unique flow cell was designed so that the electric field can be applied along the walls of the channel while the fluid is flowing at a given flow rate.
Experimental setup to study the velocity distribution along keystone slots
Experimental setup to study to study the velocity profile of flow through narrow channel
Vector map of Newtonian flow through keystone slot with different slot angle
Publications
Ansari, S., Rashid, M. A. I., Chatterjee, O., Waghmare, P. R., Ma, Y., & Nobes, D. (2015). Visualization of the viscous effects of non-Newtonian fluids flowing in mini-channels. In Proceeding of the 10th, Pacific Symposium on Flow Visualization and Image Processing.
Ansari, S., Rashid, M. A. I., Waghmare, P. R., Ma, Y., & Nobes, D.(2015) Newtonian and non-Newtonian flows through micro scale orifices. In Proceeding of the 10th, Pacific Symposium on Flow Visualization and Image Processing.
Rashid, M. A. I., Ansari, S., Waghmare, P. R., & Nobes, D.(2015) Capillary filling of Non-Newtonian fluids. In Proceeding of the 10th, Pacific Symposium on Flow Visualization and Image Processing.