They difined and kept the moving interface as zero level of level set function 他們把運動界面定義成levelset函數的零等值面,然后始終保持它是零等值面。
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 采用高性能單片機控制,自動測量,自動調零,平均處理,放大器無需量程保持。
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 由于該類方法是以數學方程的物理解的性質為基礎,通過設置一個距離函數( levelset函數)來標志界面所在的位置,從而能夠夠精確地捕捉到界面的發展,而不會出現非物理解的現象。