fluid mass 中文意思是什麼
fluid mass
解釋
流體質量-
3. the mathematical model for heat and mass transfer in the adsorbent bed is established, the porous of adsorbent, the flow of adsorbate in adsorbent, the characteristic of non - equilibrium adsorption are combined in the model, and a more accurate model of fluid flow in porous media - ergun model is adopted
它綜合考慮了吸附劑的多孔介質結構，吸附質氣體在吸附劑內的流動，吸附的非平衡特性等，並且在吸附質氣體流動模型的選擇上，採用了ergun多孔介質流動模型，比常規的數學模型更全面準確地描述了吸附床傳熱傳質的動態特性。 -
On the basis of the hamilton ' s principle, the element mass matrix, stiffness matrix, and damping matrix caused by coriolis force of the finite method for the conveying fluid tubes were educed in the paper
本文用哈密頓變分式推導輸送流體管道的有限元法分析單元質量矩陣、剛度矩陣和科里奧利力引起的阻尼矩陣。 -
Lk - coriolis mass flowmeters made according to the coriolis mass inside prineiplecloses the dischange apperrance of the fluid quality. discharge inside the piping, its structure be generally spread feeling machine and signal by signal diagraph to comvert to machine two part constituce
Lk系列質量流量計是根據科里奧原理製造的一種新型的直接測量封閉管道內流體質量流量的流量測量儀表，其結構一般由信號測量傳感器和信號轉換器兩部分組成。 -
Mass transfer performance of supercritical fluid extraction columns
超臨界流體萃取塔傳質性能的研究 -
Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it
對流是傳熱集體議案的流體，如空氣或水，當加熱流體是造成搬離努力從源頭上的熱量，進行能量與它。 -
Measurement of fluid flow by means of coriolis mass flowmeters
用科氏質量流量計法測量液體流量 -
The mass of all portable fire extinguisher shall not exceed 23kg, and they shall have a fire - extinguishing capability at least equivalent to that of a 9l fluid extinguisher
所有手提式滅火器的重量應不超過23公斤，且其滅火容量至少應等同於9公升流體滅火器。 -
The coriolis mass flowmeter ( cmf ) is widely used in industries, because it has many advantages - high measurement accuracy, being able to measure fluid mass flow directly and measure various parameters of fluid, etc. originally analog signal processing methods are used for cmf, but some companies and institutes devote themselves to digital signal processing methods because they have many advantages over analog methods
科里奧利質量流量計由於其精度高、測量流體范圍廣、可做多參數測量等優點，在工業上獲得了廣泛的運用。原來的科氏流量計的信號處理主要是採用模擬電路，由於模擬信號處理系統存在很多缺點，越來越多的公司和研究機構都投入大量的人力物力來研究數字信號處理方法和系統。 -
Different equations to corresponding components are presented by analysing and transformating the general equations of fluid routes, then static characteristics mathematical model of liquid propellant space propulsion system is presented. based on the data of static characteristics calculation, mass model of thruster, propellant, propellant tank, gas, gas bottle, pipe and valve is presented using both the method of statistical regression and the method of stress analysis, then corresponding mass model is presented. based on the characteristics of liquid propellant space propulsion systems, analyse the five phases ( concept and definition, design and improvement, manufactureing and arrangement, operation and ma intenance, disposal ) in which life cycle cost of liquid propellant space propulsion systems is cost separately, then discompsed structure of life cycle cost and model of life cycle cost are presented
將組件分成氣路組件和液路組件，再對氣路組件和液路組件進行相應的分類，然後通過對通用流路方程進行分析和變換對不同類型的組件分別建立不同的方程，從而建立了一個適用於液體推進劑空間推進系統的靜態數學模型；根據靜態計算所得到的數據，應用統計回歸法和應力分析法分別建立推力室、推進劑、推進劑貯箱、氣體、氣瓶以及導管和活門等的質量模型，從而建立相應的質量模型；結合液體推進劑空間推進系統特點，對液體推進劑空間推進系統全壽命周期費用發生的五個階段（概念和定義、設計和改進、製造和安裝、運行和維修、處理）分別進行分析，建立了液體推進劑空間推進系統全壽命周期費用分解結構和全壽命周期費用模型。 -
From chapter 4 to chapter 7, the effects of the irreversibility of mass - transfer, the internal irreversibility inside a cyclic working fluid and mass leakage on the optimal performances of chemical cycle devices are investigated
第四章至第七章研究傳質不可逆性、工質內部不可逆性及質量漏對化學循環設備優化性能的影響。 -
In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用 -
Firstly, based on the present research all over the world, a 3d quasi - single phase model is built together with k - equations. the special feature of this model is taking account of the influence of interaction between liquid and gas, that is to say, the influence of interphase drag force, lifting force perpendicular to the relative velocity, virtual mass force and gas or liquid volume fraction in the fluid field have been considered. a 3d two - fluid model is also built in order to describe more accurately the fluid flow on distillation trays by comparing the computational results of quasi - single phase mathematical model with of two - fluid mathematical model
本文在國內外已有的研究基礎上，首先建立了以k - （封閉模型為基礎的三維擬單相流模型，該模型的特點在於充分考慮了氣液兩相間相互作用的影響，即計入了相間曳力、橫向升力、虛擬質量力和氣、液相含率對流場的影響；並建立了塔板三維雙流體模型，主要目的是通過對比擬單相流數學模型、雙流體數學模型的計算結果，建立能夠準確描述塔板上流體流動的數學模型。 -
The concept of convection transport is proposed to " see " the nature of the convective phenomena. the ability to see is very attractive, for the engineers and customers are much convinced by their seeing. unified convection transport functions ( streamfunction, heatfunction and massfunction ) are derived from the governing equations to describe the fluid, heat and mass transport respectively
作者在對流控制方程的基礎上定義了描述流體、熱、質傳輸統一的對流傳輸函數（流函數、熱函數、質函數） ，並分析了傳輸函數及其傳輸路徑（流線、熱線、質線）的基本性質。 -
We get six kinds of magnetic fluid through changing two important parameters, which are mass percent s of basic liquid and magnetic particulate volume ratiov
通過改變基液（聚乙二醇）的質量百分比濃度s和磁性微粒的體積分數_兩個重要的參量，我們得到六種磁性液體。 -
Based on the mass conservation law and momentum equations of incompressible fluid in manifolds, the three examples of style manifolds with different pipe diameter show the difference between the marching solution method and the standard solution method
摘要在並聯管組水動力學基本方程的基礎上，分別採用水動力推進演算法和水動力標準演算法，對3種不同的分支管面積的型集箱進行計算，比較兩種演算法的計算結果差異。 -
Abstract : the paper firstly introduces three different approaches for the kinetic modeling of supercritical fluid extraction ( sfe ) ( empirical models, models based on the heat transfer analogy, and models based on differential mass balance ), and then models kinetic process of the sfe of flavonoid compounds from cedrela sinensis leaves in the presence of ultrasonic, at last shows the defects existed in most of the contemporary kinetic models through the example
文摘:首先介紹了三種動力學模擬超臨界流體萃取的模型（經驗模型、基於熱傳遞類推的模型以及基於微分質量平衡的模型） ，然後模擬了在超聲存在的條件下超臨界流體從香椿葉中萃取黃酮類化合物的動力學過程，最後通過該例子展示了現有大多數動力學模型的缺點 -
The paper firstly introduces three different approaches for the kinetic modeling of supercritical fluid extraction ( sfe ) ( empirical models, models based on the heat transfer analogy, and models based on differential mass balance ), and then models kinetic process of the sfe of flavonoid compounds from cedrela sinensis leaves in the presence of ultrasonic, at last shows the defects existed in most of the contemporary kinetic models through the example
摘要首先介紹了三種動力學模擬超臨界流體萃取的模型（經驗模型、基於熱傳遞類推的模型以及基於微分質量平衡的模型） ，然後模擬了在超聲存在的條件下超臨界流體從香椿葉中萃取黃酮類化合物的動力學過程，最後通過該例子展示了現有大多數動力學模型的缺點。 -
A spiral motion of fluid within a limited area, especially a whirling mass of water or air that sucks everything near it toward its center
漩渦在一定地域內液體的螺旋狀運動，尤指把附近各種東西吸向其中心的螺旋水流或空氣 -
The universal principle of mass conservation is introduced into porous media fluid mechanics followed by obtaining the general form of the mass conservation equation which used for oil - gas or oil - water percolation and media - deformed rocks is verified
摘要將普遍的守恆原理引入了多孔介質流體力學中，得到了質量守恆方程的一般表達式，並用油氣、油水兩相滲流和變形介質中巖石固相的質量守恆方程進行驗證。 -
Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system, by coupling mass and momentum conservation equations of two - fluid model. the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model. the phenomena of catastrophic inversion and transitional inversion are explained. the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model. according to the theory herein, emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process. the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers
文摘:以雙流體模型為基礎，通過質量守恆方程和動量守恆方程的耦合，提出了液-液兩相系中彌散傳質的連續波模型.由該模型得到彌散傳質過程阻塞和彌散傳質過程弱不穩定性產生的條件，計算了液滴尺寸及其分佈對乳化液極大堆砌分數的影響，解釋了劇變型乳化逆變和漸變型乳化逆變現象.研究結果表明，乳化逆變是由於彌散傳質過程的不穩定性而引起的懸浮體型態的改變，隨液滴尺寸多分散性的增大，極大堆砌分數增大；隨液滴平均尺寸的增大，多分散性對極大堆砌分數的影響減弱；當韋伯數足夠大時，液滴尺寸及其分佈對乳化液極大堆砌分數無影響
分享友人