A New Model and its Application to Investigate Transpiration Cooling with Liquid Coolant Phase Change

Modeling and Numerical Investigation of Transient Two-Phase Flow with Liquid Phase Change in Porous Media

“…Some mathematical models have been developed specifically to describe the characteristics of fluid flow and heat transfer in the three regions. Our previous research [ 16 ] has compared these models symmetrically, and the results indicated semi-mixed model (SMM) [ 19 ] was more accurate and flexible. Therefore, the transient form of SMM under local thermal non-equilibrium condition is proposed in this work to describe the transient two-phase flow with phase change in porous media.…”

“…A great number of experiments have been conducted to explore the wide range of two-phase flow regimes in different microstructures [ 12 , 13 , 14 ]. Several widely recognized mathematical models [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ] and a series of numerical approaches have been developed to probe into the mechanism. Based on these models and numerical approaches, the thermal non-equilibrium characteristic between fluid and solid [ 25 ], and the influences of fluid mass flow rate of fluid [ 20 , 24 ], heat flux distribution [ 26 , 27 ], and geometry configuration [ 19 ] on the two-phase flow and heat transfer characteristics have been studied.…”

Optimization Studies of Transpiration Cooling Using Porous Medium With Gradually-Changed Structure

“…To verify the reliability of the present model, the calculation results were compared with the simulation results in Shi and Wang (2011) and the experimental results in Dong and Wang (2018).…”

“…Meanwhile, the authors did not give a specific value of solid thermal conductivity in their case, which will also cause deviations in the results. in Shi and Wang (2011) and (b) comparison with experiment data in Dong and Wang (2018).…”

“…In Dong and Wang's (2018) experiment study using a hot wind tunnel, the porous plate has a geometric size of 56×32×8 mm, a porosity of 0.347, a thermal conductivity of 18.3 W/(mꞏK) and a permeability of 1.31×10 -13 m 2 . The mass flowrate at the cold boundary is 0.047 kg/(m 2 ꞏs), and the temperature of inlet coolant is 300 K. The hot boundary condition is evaluated using following equations (Dong and Wang, 2018…”