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- Reynolds number effects on Strouhal number are very important in the study on Reynolds number of bridge decks. 斯特羅哈數的雷諾數效應是橋梁斷面雷諾數效應研究中的一個(gè)重要問(wèn)題。
- On the basis of a large number of experimental data, a universal equation for gas-liquid Strouhal number are obtained. 通過(guò)實(shí)驗;分析了三角形柱體在水平管的氣液兩相流中;發(fā)生氣液兩相渦街時(shí);氣液兩相斯特羅哈數的變化規律;得出了氣液兩相斯特羅哈數的通用關(guān)系式.
- On the basis of a huge quantity of measured data obtained is a universal relation of the gas-liquid Strouhal number for the above-cited case. 在測得大量數據的基礎上，得出了此時(shí)氣液兩相斯托拉赫數的通用關(guān)系式。
- Results show that the two-phase Strouhal number is a variable and is influenced by void fraction, body size and flow rate etc . 研究表明,氣液兩相斯特羅哈數在兩相工況下為一變數,與來(lái)流截面含氣率、渦街發(fā)生體的迎流面寬度、來(lái)流流速等因素有關(guān);
- Results show that the two-phase Strouhal number is a variable and is affected by void fraction, body size and flow rate etc. 結果表明，氣液兩相斯特羅哈數在兩相工況下為一變數，在來(lái)流截面含氣率小于10%25時(shí)，與來(lái)流截面含氣率、渦街發(fā)生體的迎流面寬度、來(lái)流流速等因素有關(guān)；
- Occurring in gas-liquid two-phase vortex street, the the rule of gas-liquid two-phase Strouhal number are studied in gas-liquid two-phase flow. 在氣液兩相流中,研究了發(fā)生氣液兩相渦街時(shí),氣液兩相斯特羅哈數的變化規律。
- In this paper, the Strouhal number of the triangle cylinder, occurring in gas-liquid vortex street (the Karmen vortex street), are studied experimentally in horizontal gas-liquid flow. 摘要研究氣液兩相斯特羅哈數，可為利用氣液兩相渦街特性測量氣液兩相流量與組分開(kāi)辟一種新方法，也可開(kāi)發(fā)出適用于氣液兩相流體流量等參數測量的新儀表。
- Tested and studied in this paper is the variation relationship of gas liquid two phase Strouhal number when a gas liquid two phase vortex street occurs for two types of T shaped cylinder in a vertically upward gas liquid flow. 試驗研究了兩種規格的T形柱體在垂直上升氣液兩相流中發(fā)生氣液兩相渦街時(shí)，氣液兩相斯托拉赫數的變化規律。
- For these sorts of the bodies, the present computation gives the average drag coefficients, the Strouhal number is related to the shedding frequency of the separation vortices, and the flow pattern. 對這兩類(lèi)物體，計算的平均阻力系數，分離渦脫落的Strouhal數以及流態(tài)都與實(shí)驗接近。
- The test showed that there are Karman vortex street behind cylinder ,but the rule of shedding frenquency as strouhal number is defferent compared with that the cylinder is put into outflow. 實(shí)驗結果顯示,在平面葉柵風(fēng)洞內的圓柱體尾流中有類(lèi)似在外流中的卡門(mén)渦街脫落現象,但所對應的斯特勞哈數比外流稍小。
- There exists an optimal Strouhal number for the greatest enhancement of mass transfer in this model, which appears to have a strong relation with the geometrical characteristics of the cavity. 傳質(zhì)的強化效果隨著(zhù)Re和A的增大而增強;而且對于該模型存在最佳的St;它與凹槽的幾何結構有很大關(guān)系.
- Finally, the characteristics of the vortex shedding in the wake are analyzed.Under the given experimental condition, the conclusion is drawn that the Strouhal number keeps the constant of 0.2. 對圓柱尾跡的旋渦脫落特性進(jìn)行了分析，得出在試驗條件下斯特勞哈爾數保持為常數0.;2的結論。
- The characteristics of wind field are numerically simulated by Fortran program, the lift and drag coefficients and Strouhal numbers are analyzed for several angles of attack. 文中采用編寫(xiě)的Fortran語(yǔ)言程序數值模擬了流場(chǎng)的變化特征,分析了在各種風(fēng)迎角的情況下,具有方形截面的高層建筑的升力系數、阻力系數和Strouhal數。
- He thumbed through the directory to look for her number. 他翻閱電話(huà)號碼簿找尋她的號碼。
- Let me note down your address and telephone number. 讓我記下你的地址和電話(huà)號碼。
- He picked a winning number on the first draw. 他第一次便抽到一個(gè)中獎號碼。
- The number of fish in coastal waters has decreased. 沿海魚(yú)的數量已減少了。
- The number represented by the digit or digits in2. 在釋文2。中所說(shuō)的由一位或幾位數字表示的數。
- The students in our class number thirty. 我班總共有三十名學(xué)生。
- Sr flight 135 departs at 7:30p. m . 瑞航135班機下午7點(diǎn)30分出港。
