A CFD-derived correlation for methane heat transfer deterioration

作者：Pizzarelli Marco^*

来源：Numerical Heat Transfer Part A-Applications, 2016, 69(3): 242-264.

DOI：10.1080/10407782.2015.1080575

Methane heat-transfer deterioration can occur in the regenerative cooling channels of future liquid-oxygen/liquid-methane rocket engines with chamber pressures higher than about 50bar. Aiming to improve the prediction capabilities for the design of such systems, in the present study, a Nusselt number correlation able to describe the convective heat-transfer characteristics of supercritical flow exhibiting deterioration and with negligible buoyancy effects is obtained using data from numerical simulations. The adopted numerical solver of the Navier-Stokes equations is first validated against the experimental data of near-critical hydrogen in heated tubes and then used to collect heat-transfer data of supercritical methane in a heated tube for different levels of pressure, temperature, and mass flux.

• 出版日期2016-2-1