They difined and kept the moving interface as zero level of level set function 他们把运动界面定义成levelset函数的零等值面,然后始终保持它是零等值面。
By high performance microprocessor controlled , reach auto measure step range , auto calibrate zero level , average process and amplifier don ' t need keep the step value 采用高性能单片机控制,自动测量,自动调零,平均处理,放大器无需量程保持。
In this paper , we developed a new kind of interface capturing method which use the level set equation to keep track of the interface location as the zero level and use the ghost fluid method to propagate the contact interface disturbed by r - m instability or r - t instability 由于该类方法是以数学方程的物理解的性质为基础,通过设置一个距离函数( levelset函数)来标志界面所在的位置,从而能够够精确地捕捉到界面的发展,而不会出现非物理解的现象。