在制冷装置中,当湿空气沿蒸发器冷壁面作强迫流动时,沿流动方向(以X坐标表示)形成边界层流动。由于边界层厚度的变化及边界层内流动状态(层流和湍流)的不同,在壁面的不同位置X上,其传热传质的速率是明显不同的,因而结霜的速率也就截然不同。然而,以前对平板结霜速率的研究,往往只考虑某些位置上霜高H与时间τ的关系,而忽 In a refrigeration unit, as wet air is forced to flow along the cold wall of the evaporator, a boundary layer flow is formed in the flow direction (indicated by the X coordinate). Due to the variation of the boundary layer thickness and the flow regime in the boundary layer (laminar and turbulent flow), the rate of heat and mass transfer is significantly different at different positions X of the wall and the rate of frosting is also quite different . However, in the past, the research on plate frosting rate often only considered the relationship between frost height H and time τ in some positions,