experiments in fluids 中文意思是什麼

experiments in fluids 解釋
流體力學實驗
  • experiments : 實驗，153
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  1. Recent experiments have succeeded in obtaining oscillations from the new system, with frequencies of 66hz and 23hz for the cases with helium and nitrogen as the working fluids, respectively. the traveling wave system is expected to be one of the good candidates as a driver for pulse tube refrigerator, leading to a thermoacoustically driven pulse tube refrigerator without any moving component

    還利用deltae對環路部分進行了數值模擬分析，著重討論了系統的起振臨界溫度與臨界加熱功率、效率與加熱溫度的關系、噴射泵的作用以及不同工質（氮氣和氦氣）的比較等，得出一些有益的結論。
  2. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。
  3. Aiming at some reservoir characteristics of low porosity, extra - low permeability, low oil saturation, and low productivity as well as shallow depth in changxi area of ansai oilfield, through a large number of laboratory experiments and field tests, some suitable fracturing technology and operation parameters have been optimized, including low temperature fracturing fluids., propping fracture radius 、 pre - liquid and sand - fluid ratio

    摘要針對安塞油田長西區低孔隙度、特低滲透率、低含油飽和度和淺層低產的油藏特性，通過大量室內、現場試驗研究，優選出適合的壓裂施工參數，包括低溫壓裂液、裂縫支撐半徑、前置液和砂液比。
  4. In order to investigate the performance of this new cycle, a set of experimental apparatus was designed and setup, a series of experiments using r134a / dmf, r13 + r134a / dmf, r32 + r134a / dmf, and r13 + r134a + r32 / dmf as working fluids respectively were also carried out in this thesis, hi these experiments, this new cycle shows not only its ability to get low refrigerating temperatures but its potential in utilizing low thermal potential energy as driving power

    為了驗證理論計算的結果，本文在熱力性能分析計算基礎上，設計了一套完整的實驗裝置，搭建了實驗臺，分別以r134a 、 r13 + r32 + r134a 、不同比例混合的r13 + r134a 、 r32 + r134a進行了一系列的實驗，並把實驗結果進行了分析和比較。結果表明，新循環能夠得到較低的製冷溫度，並且在利用低品位熱源方面具有潛力。
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