摘要
双极性锌银电池在作为航天电源或应用于水下装置时,加速度的变化会直接影响到电池激活时电解液的灌注情况.运用VOF模型,通过计算仿真的方法,研究了加速度大小和方向对单电池电解液灌注过程的影响.结果表明,在一定方向上,加速度越大,电池内部气泡产生的越少;加速度大小的变化对电解液流动过程中压力分布及压力大小的影响较小,并且主要的压降存在于进口流道和出口流道;电解液只有当加速度方向处于一定范围的时候才能充满整个单电池.
When bipolar zinc-silver battery is used as the space power or underwater device,the change of acceleration will directly affect the perfusion of electrolyte when the battery is activated.Using VOF model,the influence of acceleration magnitude and direction on the electrolyte filling process of single cell was studied by the simulation method.The results show that,in a certain direction,the greater the acceleration,the less bubbles will be generated inside the battery.The change of acceleration has little influence on the pressure distribution and pressure during the electrolyte flow,and the main pressure drop exists in the inlet channel and outlet channel.The electrolyte can only fill the whole cell when the acceleration direction is within a certain range.
引文
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