buoyancy ratio 中文意思是什麼

buoyancy ratio 解釋
比浮力
  • buoyancy : n. 1. 浮力；浮性。2. 活潑，輕快；開朗。3. 【商業】漲風，上漲行情；（國家歲入的）增長趨勢。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. When pr / sc is a constant, the value of buoyancy ratio bmin decrease with the increasing inclination angle

    B _ （ min ）的值則隨傾斜角度的減小而增大。
  2. Numerical results are obtained for velocity, temperature and concentration profiles, variations of both nusselt and sherwood numbers under different buoyancy ratio and inclination angles of = 15 - 90. at a given inclination angle, heat and mass transfer rates decrease with heat and mass buoyancies and the buoyancy ratio b decrease from high positive values, and then increase again with the buoyancy radio b further decreasing after the velocity and transfer rates reaching a minimum

    研究結果表明：傾斜角度一定，當熱浮力與物質擴散浮力共存且二浮力之比b從較高正值變化到較高負值時，流體速度和熱質傳遞速度從高逐漸變低並出現最小值，此後隨著向下浮力的增大，流體向下流動且隨| b |的增大而加速，熱質傳遞速率隨| b |的增大而重新增大。
  3. The nusselt and sherwood numbers increase with the increasing buoyancy ratio of b. when b reaches bmin, nusselt and sherwood numbers are attained minimum. the value of buoyancy ratio bmin which is a function of pr / sc increase with the increasing pr / sc and bmin varies drastically when 0 < pr / sc < 2

    流體速度和熱質傳遞速度出現最小值時即nusselt數和sherwood數為最小值時的浮力比為b _ （ min ） ，它是普朗特數和施米特數之比pr / sc的函數，隨pr / sc的增大而增大。
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