While traditionally, researchers have relied on empirical and semi-empirical correlations for predicting behaviors in two-phase flows, theoretical/analytical modeling techniques try to capture the underlying physics and rely on identifying the inherent flow mechanism involved. These make them better in developing a physical understanding of two-phase configuration under investigation.
We have worked on various models to predict performance parameters in configurations like flow condensation and flow boiling. One example is our work on critical heat flux modeling. Critical heat flux is an important design parameter for a heat flux controlled flow boiling thermal management system. Reaching CHF on a heat flux controlled device like an electronic chip can lead to a sudden reduction in the heat transfer coefficient and a rapid rise in wall temperature leading to a catastrophic failure of device. Recently, we developed a new theoretical model for predicting the trigger mechanism for flow boiling CHF and predicted the experimental data with an MAE of <16 %.
Related Publications
[9] CN Huang, CR Kharangate, Consolidated model for predicting flow boiling critical heat flux in single-sided and double-sided heated rectangular channels, International Journal of Heat and Mass Transfer 160, 120132. https://doi.org/10.1016/j.ijheatmasstransfer.2020.120132
[8] CN Huang, CR Kharangate, A new mechanistic model for predicting flow boiling critical heat flux based on hydrodynamic instabilities, International Journal of Heat and Mass Transfer 138, 1295-1309. https://doi.org/10.1016/j.ijheatmasstransfer.2019.04.103
[7] LE O’Neill, I Park, CR Kharangate, VS Devahdhanush, V Ganesan, I Mudawar, Assessment of body force effects in flow condensation, part II: Criteria for negating influence of gravity, International journal of heat and mass transfer 106, 313-328. https://doi.org/10.1016/j.ijheatmasstransfer.2016.07.019
[6] CR Kharangate, LE O’Neill, I Mudawar, Effects of two-phase inlet quality, mass velocity, flow orientation, and heating perimeter on flow boiling in a rectangular channel: Part 2–CHF experimental results and model, International journal of heat and mass transfer 103, 1280-1296 https://doi.org/10.1016/j.ijheatmasstransfer.2016.05.059
[5] CR Kharangate, C Konishi, I Mudawar, Consolidated methodology to predicting flow boiling critical heat flux for inclined channels in Earth gravity and for microgravity, International Journal of Heat and Mass Transfer 92, 467-482. https://doi.org/10.1016/j.ijheatmasstransfer.2015.08.018
[4] CR Kharangate, I Mudawar, MM Hasan, Photographic study and modeling of critical heat flux in horizontal flow boiling with inlet vapor void, International journal of heat and mass transfer 55 (15-16), 4154-4168. https://doi.org/10.1016/j.ijheatmasstransfer.2012.03.057
[3] CR Kharangate, I Mudawar, MM Hasan, Experimental and theoretical study of critical heat flux in vertical upflow with inlet vapor void, International journal of heat and mass transfer 55 (1-3), 360-374. https://doi.org/10.1016/j.ijheatmasstransfer.2011.09.028
[2] CR Kharangate, Experimental, theoretical and computational modeling of flow boiling, flow condensation and evaporating falling films. https://docs.lib.purdue.edu/open_access_dissertations/783/
[1] CR Kharangate, C Konishi, I Mudawar, Consolidated methodology to predicting flow boiling critical heat flux for inclined channels in Earth gravity and for microgravity, International Journal of Heat and Mass Transfer 92, 467-482. https://doi.org/10.1016/j.ijheatmasstransfer.2015.08.018