A numerical method is presented for the two dimensional quasi steady state heat transfer on high power density laser welding processes according to the keyhole model.
对高能量密度激光匙孔焊接过程的二维准稳态传热进行了计算方法的研究。
The steady-state flows in drill pipe and in annulus are analyzed and the variations of pressure, gas void fraction, and multiphase-flow density along the well depth are simulated.
举例分析在环空和钻柱内的稳定流动过程中，随井深增加，压力、含气率、多相流体密度等的变化规律；
The influence of confining pressure and drainage shear condition and initial relative density for flyash in steady-state deformation characteristic were discussed.
着重研究了周围压力、剪切排水条件、初始相对密实度对粉煤灰稳态变形特性的影响；
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