Boiling two-phase flow under microgravity

Review of flow boiling and critical heat flux in microgravity

“…Saito et al [130] performed parabolic flight water flow boiling experiments in a 25 Â 25 mm 2 and 600-mm long square channel that was fitted with an electrically heated rod (D = 8 mm, L = 200 mm) along its central axis. Fig.…”

“…(a) Comparison of water flow boiling behavior in microgravity and Earth gravity along a square channel fitted with a central cylindrical heating rod (adapted from Saito et al[130]). (b) Comparison of flow boiling of R-113 in vertical upflow in 1 g e , 2 g e and lg e for subcooled inlet conditions at low and high mass velocities, and for low mass velocity and high inlet quality (adapted from Ohta[131]).…”

Consolidated methodology to predicting flow boiling critical heat flux for inclined channels in Earth gravity and for microgravity

“…These include a number of adiabatic two-phase flow studies, such as those of Dukler et al [19], Colin et al [20], Reinarts [21], Bousman et al [22,23], and Choi et al [24] that were aimed at understanding the influence of microgravity on two-phase flow patterns as well as the transitions between different flow patterns. Parabolic flight flow boiling studies include flow patterns in both subcooled and saturated flow boiling by Misawa [25], impact of bubble detachment and coalescence on flow pattern development by Saito et al [26] and Ohta et al [27], flow boiling frictional pressure drop in flow boiling by Brutin et al [28], and subcooled flow boiling heat transfer and CHF by Ma and Chung [29]. More recently, a collaborative effort between the Purdue University Boiling and Two-Phase Flow Laboratory (PU-BTPFL) and NASA Glenn Research Center has been focussed mostly on flow boiling CHF.…”

Assessment of dimensionless CHF correlations for subcooled flow boiling in microgravity and Earth gravity

“…High cost and complexity have greatly limited the number of published studies on flow boiling in microgravity [6][7][8][9][10]. Of these studies, only a small subset concern flow-boiling CHF.…”