log law 中文意思是什麼
log law
解釋
對數律-
In the bed load layer, the stream - wise particle velocity profile follows the log - law, and the average is 8. 2u *
在推移區內，顆粒的縱向速度沿垂線接近對數分佈，平均運動速度為8 -
The distribution of stream - wise particle velocity follows the log - law under various flow conditions and for different particle diameters, and the fluctuation of the other two velocity components is random
對不同的粒徑和不同的水流條件，顆粒縱向平均速度都符合對數分佈規律，垂向和橫向的平均速度屬于隨機波動的范圍。 -
The goal of this paper is to study fully developed turbulent pipe flow. with the aid of the tripping annulus at the inlet, based on the experimental investigation and numerical simulation, detailed researches on a few basic rules in pipe flow have been performed, such as mean velocity profile, relative intensity of turbulence, the log - law, von karman ' s constant and reattachment length, thus filling some gaps in the research work of predecessors and obtaining a far - reaching understanding
本文的目的就是利用入口擋環進一步探索充分發展的圓管湍流，通過實驗和數值模擬對圓管湍流的若干基本規律，如平均速度分佈、相對湍流強度、對數定律、馮?卡門常數和再附著長度等進行詳細的研究，以填補前人研究中的一些空白，並獲得更深入的了解。 -
The paper gathered deep layers well logging materiak record well materiak core and cutting material of 27 wells in the daqing district, recognized the different type of igneous rock according to their log response feature, and made a large number of cross plot, then carefully chose several of them which works better igneous rock lithology recognition. made pattern recognition procedure using computer to recognize lithology, synthetical many logging parameter to identify igneous rock lithology. and then on the basis of recognizing lithology, the paper analyzed the lithofacies recognition law in this district
文中採集了大慶地區27口井的深層測井資料、錄井資料、巖心和巖屑資料，根據火成巖的測井響應特徵識別不同類型的火成巖，並做了大量交會圖，精選了幾種識別火成巖巖性效果較好的交匯圖版，編制計算機識別巖性的模式識別程序，綜合多個測井參數識別火成巖巖性，並在識別巖性的基礎上，進一步分析本地區巖相的識別規律，最後結合試油資料，分析本地區火成巖儲集空間的特點及油氣與火成巖巖性和巖相的關系。 -
The existence of a log - law in the centreline velocity profile and the variation of the turbulence intensity in the centreline were discussed in detail
進一步探討了軸線速度分佈中對數定律的存在和軸線上相對湍流強度的變化情況。 -
Moreover, the logging interpretation model of reservoir parameters is established based on the data of the 14 cored wells, and the various reservoir parameters are calculated based on the secondary digital process of log data of 388 wells within the area the petrophysical feature of reservoir rock, the distribution of reservoir parameters and reservoir heterogeneity, as well as their variability law during water injection, are defined quantitatively
以14口取心井資料為基礎，建立了參數解釋模型，並對全區388口井進行了測井資料二次數字處理，求取了各類儲層參數。對儲層的宏觀非均質性、微觀孔喉結構及滲流特徵進行了量化描述，並研究了注水開發過程中儲層物性參數的變化規律。
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