“…Secondly, previous turbulent heating augmentation (turbulent heat flux above laminar) and transition onset correlations, which can be employed as engineering-level design and analysis tools, were fitted by hypersonic wind-tunnel data of scaled 70 o sphere-cone models [14,20]. Unfortunately, no ground-based experiments can fully reproduce the high-speed and high-temperature Martian flow occurring at real flight conditions [21]. Besides, the effects of sphere-cone angle were not included in these correlations.…”