Slow burn

日期:2017-08-11 06:34:30 作者:万扃 阅读:

Israeli researchers have replicated the strange way things burn in space. The hot gases that rise from fires on Earth push the flames in unpredictable directions, making combustion hard to model mathematically. Ory Zik and Elisha Moses of the Weizmann Institute in Rehovot eliminated convection by burning paper between two panes of glass. As they will soon report in Physical Review Letters, the smouldering paper showed finger-like patterns of charring that could easily be modelled. NASA hopes to use the model to predict how fire might spread in weightless conditions,