A Physical Modeling Approach for Higher Plant Growth in Reduced Gravity Environments
Lucie Poulet1, Jean-Pierre Fontaine1, Claude-Gilles Dussap1
1Université Clermont Auvergne , Institut Pascal, UMR 6602, Clermont-Ferrand, France .
Abstract:
Including plants in bioregenerative life-support systems enables simultaneous food production and water and air recycling, while closing cycles for water, oxygen, nitrogen, and carbon. To understand and predict higher plant behavior for a wide range of environmental conditions, including reduced gravity levels, a mechanistic physical model is being developed. The emphasis is set on the influence of gravity levels and forced convection on higher plant leaf gas exchanges, which are altered by reduction of free convection in lower gravity environments, such as microgravity or martian and lunar gravities. This study highlights the significance of understanding leaf boundary layer limitations and ultimately will lead to complete mechanistic modeling of mass and energy balances on plant growth in reduced gravity environments.
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