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The critical Rayleigh number in low gravity crystal growth from solution

机译:溶液中低重力晶体生长的临界瑞利数

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摘要

If crystal growth from solution takes place in a closed container, a critical Rayleigh number can be defined, below which buoyancy driven convection is suppressed and mass transport is completely determined by diffusion at gravitational accelerations higher than 0g. Using finite element simulation's and an analytical model, we show that it is possible to predict the critical value of the Rayleigh number. This result can be used to optimize growth conditions for microgravity protein crystal growth, if the gravitational acceleration cannot be canceled completely, like in space, or is canceled in homogeneously, like in gradient magnetic fields.
机译:如果溶液中的晶体生长在密闭的容器中进行,则可以定义一个临界瑞利数,在该瑞利数以下,浮力驱动的对流得到抑制,质量转移完全由重力加速度大于0g的扩散决定。使用有限元模拟和分析模型,我们表明可以预测瑞利数的临界值。如果重力加速度不能像空间一样完全抵消,或者像梯度磁场一样不能均匀抵消,那么该结果可用于优化微重力蛋白质晶体生长的生长条件。

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