Shahram Pouya
Title(s):
Adjunct Assistant Professor
Office
2324 Howe
537 Bissel Rd
Ames, IA 50011
Information
I have over 16 years of experience in the development and application of optical diagnostic techniques to study various fluid mechanics problems. My work has led to the birth of single quantum dot velocimetry, a near-surface velocimetry method to infer flow velocity within ~100nm of a surface. The technique was employed to study the dynamics of nanoparticles’ motion near-surface and analyze slip/no-slip boundary condition in microchannels. I have published two journal articles based on this research and there is one more manuscript under preparation.
I also developed FemtoMTV/MTT, (Femto-Molecular Tagging Velocimetry/Molecular Tagging Thermometry) a velocimetry/thermometry method based on multi-photon excitation of a phosphorescent method that removes some of the limitations of the traditional molecular tagging methods and allows for high-speed acquisition better suited for time-resolved measurement of unsteady flows.
Publications
Pouya S., Blanchard, G., and Koochesfahani, M.M., “Molecular Tagging Velocimetry for the NASA ZBOT experiment,” Experiments in Fluids 60(5): 78, 2019. Ryabtsev, A., Pouya, S., Safaripour, A., Koochesfahani, M. and Dantus, M., “Fluid flow vorticity measurement using laser beams with orbital angular momentum,” Optics Express 24(11):11762-11767, 2016. Pouya, S., Liu, D., Koochesfahani, M., “Effect of finite sampling time on estimation of Brownian fluctuation,” Journal of Fluid Mechanics,767:65-84 2015. Pouya, S., Van Rhijn, A., Dantus, M., Koochesfahani, M., “Multi-photon molecular tagging velocimetry with femtosecond excitation (FemtoMTV),” Experiments in Fluids 55 (8): 1-5, 2014. Hammer P., Pouya, S., Naguib, A., Koochesfahani, M, “A multi-time-delay approach for correction of the inherent error in single-component molecular tagging velocimetry,” Measurement Science and Technology 24(10):105302, 2013. Pouya, S., Koochesfahani, M.M., Greytak, A.B., Bawendi, M., Nocera, D., “Experimental Evidence of Diffusion-Induced Bias in Near-Wall Velocimetry Using Quantum Dot Measurements”, Experiments in Fluids 44(6):1035-1038, 2008. Pouya, S., Koochesfahani, M.M., Snee, P., Bawendi, M., Nocera, D., “Single Quantum Dot Imaging of Fluid Flow Near Surfaces”, Experiments in Fluids 39:748-786, 2005.