【摘要】 在液化天然气的贮存过程中 ,会发生一种被称为“涡旋”的非稳性现象 ,这种贮存的非稳性关系到贮槽运行的安全性和经济性。需要对分层和非稳性形成的原因和机理有正确的理解。本文根据双向扩散模型 ,从理论角度分析分层液体中间界面的稳定性 ,中间界面的传热和传质特性和分层液体的混合条件。更多还原

【Abstract】 There is an instability phenomenon ca lled rollover during the storage process of liquefied natural gas (LNG). This ph enomenon affects the safety and economy of the LNG tank, therefore it is necessa ry to correctly understand the mechanism and parameters governing the phenomenen . Based on the double-diffusive convection model, this paper theoretically anal yses the stability of the interface between the layers, heat and mass transfer c haracteristics of the interface and the mixing across a density interface.更多还原