Carmeliet

Sreeyuth Lal Laboratory of Building Science and Technology, EMPA - Swiss Federal Laboratories for Material Science and Technology
PhD Researcher Tel: +41 58 765 6533
  Fax: +41 58 765 4009
  Email: sreeyuth.lal@empa.ch

Profile:

Sreeyuth Lal completed his Bachelors in Mechanical Engineering from BITS, Pilani – India in 2010. He graduated with a Master of Science degree in Nuclear Engineering from ETH Zurich in 2012. During his Masters, his research was mainly concentrated in developing a direct numerical simulation CFD code for simulating nucleate and pool boiling in nuclear reactor cores. His past work experiences include in-ternships at the Indian Space Research Organization (ISRO) and at the Nuclear Fuel and Materials Group of Axpo AG, Switzerland . He is currently pursuing a PhD in Civil Engineering and is based at the Laboratory for Building Science and Technology at Empa.

PhD Research:

Sreeyuth’s PhD research can be summed up as follows: Porous asphalt (PA) is a highly complex composite material with pore sizes ranging from the micron scale to the centimetre scale. The lifetime of PA is highly influenced by its interaction with water. A series of experiments are planned to track the movement of water in PA under different atmospheric conditions. A custom-built climactic micro wind-tunnel will be used to simulate wind, rain and solar radiation. Neutron radiography will be used in conjunction with micro-CT imaging to analyze the interaction between fluid flow in PA and its pore structure. The interaction of the fluid flow within PA with that of the environment will be investigated by coupling macro-scale computational fluid dynamics (CFD) simulations with a porous material modelling code like HAMFEM. Results from micro-scale fluid transport simulation with Lattice Boltzmann technique will also be upscaled to get the desired macro-scale properties. Towards the end of the study, it is expected that an accurate picture of the dynamics of wetting and drying in porous asphalt at the macro scale will emerge and this information can be utilized for better pavement solutions.

Publications:

1. Lal, Sreeyuth, Yohei Sato and Bojan Niceno. "Direct numerical simulation of bubble dynamics in subcooled and near-saturated convective nucleate boiling." International Journal of Heat and Fluid Flow 51 (2015): 16-28.

2. Lal, Sreeyuth, Lily D. Poulikakos, Marjan Sedighi Gilani, Iwan Jerjen, Peter Vontobel, Manfred N. Partl, Jan C. Carmeliet, and Dominique Derome. "Investigation of Water Uptake in Porous Asphalt Concrete Using Neutron Radiography." Transport in Porous Media 105, no. 2 (2014): 431-450.

3. Sato, Yohei, Sreeyuth Lal, and Bojan Niceno. "Computational Fluid Dynamics Simulation of Single Bubble Dynamics in Convective Boiling Flows." Multiphase Science and Technology 25, no. 2-4 (2013).

Refereed Conference Proceedings:

1. Y. Sato, S. Lal and B. Niceno, "Development of Mass-Conservative Phase-Change Model for Convective Boiling Simulations", ASME 2013 International Mechanical Engineering Congress & Exposition (IMECE2013), November 15-21, 2013, San Diego, California, USA.

1. S. Lal, Y. Sato and B. Niceno, "Highly Resolved Numerical Simulation of Subcooled and Saturated Boiling; a Step Toward Prediction of Critical Heat Flux”, 10th Multiphase Flow Conference, June 12-14, 2012, Dresden, Germany.

2. S. Lal, Y. Sato and B. Niceno, “Direct Numerical Simulation of Subcooled Nucleate Pool Boil-ing”: Proceedings of International Conference on Nuclear Engineering 2012 – Madrid, World Academy of Science, Engineering and Technology, Issue 63, March 2012.

Top
Bitte wechseln Sie Ihren Browser
Seite zuletzt geändert am 27.01.2015 15:59 Uhr