Fluid dynamicist ronald stouffer of the national oceanic and atmospheric administration in princeton , new jersey , agrees .
国家海洋和大气管理局（新泽西州普林斯顿）的流体动力学家罗纳德斯托弗同意这个看法。
These include fluid mechanics , the stability of fluid surfaces , interactions between fluids and structures , and the complex biology of walking , explains krechetnikov , a fluid dynamicist at the university of california , santa barbara .
