unsteady laminar flow 中文意思是什麼

unsteady laminar flow 解釋
非穩定層流
  • unsteady : adj. 1. 不穩固的。2. 不堅定的；動搖的；易變的，反復無常的，不可靠的。3. 行為古怪的；品行不好的。vt. 使不穩定，使動蕩。adv. -ily ,-iness n.
  • laminar : adj. 由薄片或層狀體組成的，薄片狀的；層狀的。 laminar flow 【物理學】片流，層流。
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. 4 were calculated in curved tube with permeable arterial wall and effects of parameters, such as shear stress, mass flux of arterial wall, on mass transfer were studied. it was found that steady laminar flow become unsteady with the increase of de. the concentration in inner section of transverse section of the tube is higher than other areas, and with the increase of de and pe, the concentration there increase obviously. it indicates that for the permeable arterial wall, the macromolecules are likely to gather in the areas where axial velocity and shear stress are relatively low, thus indicates why location of atherosclerosis frequently occurs at inner side of curved tube

    4 ，在可滲透邊界條件下彎曲血管內的濃度場分佈，並分析了諸如壁面剪應力及跨壁流量等參數對傳質的影響。計算表明隨著dean數的增加，定常層流開始失穩。血管截面內側區是濃度分佈較高區域，並且隨著dean數和peclet數的增加，內側區濃度明顯增大。
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