although the phere will normally dissolve in a few hours, the dissolving rate is a function of fluid temperature, fluid movement, friction, and absorbability of the crude 盡管正常情況下清管器會(huì)在幾個(gè)小時(shí)內(nèi)溶解,但溶解率是關(guān)于流體溫度、流體移動(dòng)、摩擦和原油吸收力的一個(gè)函數(shù)。
by compared with the norm, the result from cfd is proved correct . the fluid-structure interaction emulation analysis shows the large displacement of the structure will affect the fluid movement and the wind pressures 采用cfd方法計(jì)算坡屋面周圍氣流的運(yùn)動(dòng)及對(duì)結(jié)構(gòu)的作用,求解體型系數(shù),與規(guī)范比較表明采用cfd方法可以比較正確的反應(yīng)結(jié)構(gòu)表面的風(fēng)壓分布。
like closing valves, fluid movements of check valve through the channel is narrow and therefore the lifting of check valve through the pressure drop kai xuan than some big-check valve, and the rotary kai-flow check valves are very few restrictions 像截止閥一樣,流體通過升降式止回閥的通道也是狹窄的,因此通過升降式止回閥的壓力降比旋啟式止回閥大些,而且旋啟式止回閥的流量受到的限制很少。
the sedimentary water is the carrier and main driving force of petroleum migration and accumulation, which controls the fluid movement and appears centrifugal flow from the center to edge of basin, while penetrated water formed by infiltration of atmospheric precipitation and surface water appears centripetal flow from the edge to center of basin by gravity process 沉積水是油氣運(yùn)聚的載體和主要?jiǎng)恿?,?duì)盆地流體的運(yùn)動(dòng)起控制作用,由盆地中心向盆地邊緣呈離心流;滲入水由大氣降水和地表水的滲入產(chǎn)生,受重力作用由盆地邊緣向盆地中心呈向心流。