dilute gas 中文意思是什麼
dilute gas
解釋
滲冷氣體-
The wavelet multi - analysis is adopted to further understand the microstructure of solids holdup fluctuation, the vivid fingermark images show that it is a fractal and dissipative structure. the low and frequency signals reflect the dilute phase fluctuation behavior and dense phase ( cluster ) fluctuation behavior, respectively. to deep understand the multi - scales characteristic of gas - solids circulating fluidization, the wp decompose methods for obtaining the eigenvalue of gas - solid fluidized bed has been developed. the results show that eigenvalues of different scales are effective for identification of non - uniform and dynamic structure of gas - solid fluidized bed
小波多分辨分析法得到指紋圖形象地揭示了顆粒濃度脈動的自相似、分叉等具有混沌特徵的微觀結構；小波分解后信號中的低頻和高頻成分分別代表了稀相和密相的脈動行為，小波包分解提取能量特徵值的方法能夠揭示氣固的多尺度特性，不同尺度上的能量特徵值四川大學碩十論文反映了氣固循環流化系統中存在的非均勻動態時空結構。 -
For the normal paraffinic hydrocarbons, a number of dilute-gas viscosity have been developed.
對于正構烷烴，已發展了多種稀薄氣體粘度。 -
In the previous direct simulation monte carlo ( dsmc ) method used in the dilute gas - solid flow, particle collision probability was calculated by the equation used for rarefied gas molecules. and gas phase was simulated by the laminar navier - stokes equations
已有的應用直接模擬蒙特卡羅（ dsmc ）方法模擬流化床內稀疏氣固兩相流動的研究中，均採用稀薄氣體分子碰撞概率的計算方法計算氣固兩相流中顆粒的碰撞概率，採用層流navier - stokes方程模擬氣相流動。 -
The experimental analysis results show that the gas and solids phases local flow structure of cfb riser are composed of dilute phase ( continuous phase ) and dense phase ( discontinuous phase, cluster )
實驗數據分析表明，循環流化床提升管中氣、固兩相的局部結構是由稀相為連續相、濃相（顆粒聚集物）為分散相組成的。 -
On the basis of piv measurement of the gas solid velocity field, the size and the numbers of particles are measured by newly developed image processing software. the results are identical with the variation of the factual size of particles. by the viable datum, the average size of particles in the cross section is calculated in the dilute phase area of circulating fluidized beds ( cfb ) riser
在piv測速系統基礎上，通過二次開發的圖像識別軟體，實現不同工況下各截面顆粒粒徑分佈的測量，測量結果基本反映出實際顆粒粒徑變化，證明了該方法的可行性，進一步獲得了循環流化床稀相區顆粒粒徑分佈特性。 -
Based on the analysis of the excitation spectrum, we obtain the superfluid - mott - insulator phase transition condition, and superfluid velocity of ultracold dilute gas of bosonic atoms in an optical lattice, and point out that the velocity of superfluid can be experimentally adjusted by controlling the parameters of optical lattice
從激發譜分析可得到superfluid - mott絕緣相變條件，給出了光格子中超流速度，並指出在實驗上可以通過控制光格子參數來改變超流速度。 -
Finally, the thesis employed the new combined model to simulate the dense gas - solid two - phase vertical flows, to simulate the dilute or dense gas - solid two - phase jet flows, and both of them got a satisfied numerical solution. after comparing the numerical results to experimental data, we found that they were quite agreement. it proves that the new combined model is right, accurate and reliable, and it may be suitable to simulate various dense gas - solid multiphase flows
最後，本文利用所提出的新的組合模型，對高濃度氣固兩相立管流動進行了數值模擬；對稀相和密相氣固兩相射流進行了數值模擬；兩者均得到了滿意的數值解；將所得數值結果與相關實驗數據進行了比較，兩者十分吻合，證明了本組合法在模擬高濃度氣固兩相流動時的準確性和可靠性，並具有一定的普適性。
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