Fig. 3: Effect of pulse flow on a bare tube in microgravity: 550 kPa source pressure, bare tube surface, 0.05 G level (g/g0)—F2 (Flight_Day1_2, 67324 Re, continuous) versus F3 (Flight_Day1_3, 53859 Re, pulse 2 s 10%) versus F4 (Flight_Day1_4, 64092 Re, pulse 3 s 10%). | npj Microgravity

Fig. 3: Effect of pulse flow on a bare tube in microgravity: 550 kPa source pressure, bare tube surface, 0.05 G level (g/g0)—F2 (Flight_Day1_2, 67324 Re, continuous) versus F3 (Flight_Day1_3, 53859 Re, pulse 2 s 10%) versus F4 (Flight_Day1_4, 64092 Re, pulse 3 s 10%).

From: Nitrogen flow boiling and chilldown experiments in microgravity using pulse flow and low-thermally conductive coatings

Fig. 3

a Chilldown curve, b Heat transfer coefficient versus wall superheat, c Exit pressure, d mass flux, and e total propellant mass consumed based on averaged exit wall temperature.

Back to article page