fluid pressure field 中文意思是什麼
fluid pressure field
解釋
流體靜壓場-
The major work is as follows : solution of two dimensional radiation or diffraction fluid field. this thesis extends multipole expansion method to adapt to disturbed fluid fields of 2d floating bodies with asymmetric forms, which is applied with symmetric forms originally. and given the solution of potential velocity and hydrodynamic pressure of radiation and diffraction fluid fields, which is incited by a 2d arbitrary form, actual application field of the multipole expansion method has been enlarged
關於二維擾動流場的求解：將通常僅適宜求解具有對稱形狀二維物體擾動流場的多極展開法（保角變換方法）擴展至非對稱形狀二維物體，給出了任意形狀二維物體的輻射和繞射流場的速度勢及水動壓力的頻域解，進一步擴大了多極展開法的實際應用范圍。 -
It measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, by field bus hart protocol
它測量工業過程流體壓力，將其轉化成4ma20ma dc信號輸出。 -
Then i discussed methane desorption properties including cbm - bearing saturation, critical desorption pressure, the ratio between critical desorption pressure and original coal reservoirs pressure and difference of terra decompression ; cbm - bearing characteristics of coal seams including measured / academic cbm - bearing content, coalbed methane resources content and cbm resources abundance, etc. the author respectively gave a brief account of the basic characteristics of ancient and today ' s geothermic field at 1000m and 2000m depth, coal measure strata pressure field at the depth less than 1600m, structural stress field from jurassic to present, and ancient and today ' s fluid potential field ( that is water potential and gas potential distributing in coal measure strata )
分別簡述了準噶爾盆地1000m及2000m深度今古地溫場、 1600m以淺的煤系地層壓力場、侏羅紀至今地應力場及煤系地層水勢與氣勢分佈的今古流體勢場基本特徵，進而對這「四場」特徵及其互動關系與煤儲層物性、可采性及煤層氣聚集的關系進行了探討。從構造背景、構造演化及構造類型幾方面論述了本區構造作用的控氣特徵。 -
Abstract : according to sidewall unstable problem during dr illing, the study on sidewall stability is developed. the paper analyses sidewall stress state and sidewall unstable type, and combines with log data and indoor e xperimental result of core. through analysis and calculation, the method of calcul ating slough formation pressure is proposed. by application of the method in 3 wells in yancheng area, result shows that slough pressure section fits in with field practical condition. it supplies some basis for design of drilling fluid d ensity
文摘:針對鉆井中井壁失穩問題開展井壁穩定性研究，文中就井壁應力狀態和失穩類型進行分析計算，並結合測井資料和巖心的室內實驗結果進行分析，建立了一套計算地層坍塌壓力的方法，結合鹽城地區3口井應用對比，坍塌壓力剖面基本吻合現場實際，為鉆井液密度設計提供了一定的依據。 -
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 -
According to the working modes of mr devices, combining the ohm ' s law of magnetic circuit and the design theory of non - steady magnetic circuit, magnetic structures of the automotive damper have been worked out. to emulate the performance of conventional shock absorber, two automotive mr dampers were designed and fabricated at chongqing university. an applied magnetic field increase the yield stress of mr fluids in flow annular passages, which alters the velocity profile of mr fluid in the passages and raise the pressure gradient between low cavity and high one at some given flow rates
根據磁流變阻尼器工作模式，利用磁路中的歐姆定律和動態磁路設計原理，結合汽車懸架的技術要求和結構特點，提出了基於剪切模式和流動模式共同作用（混合工作模式）的汽車磁流變阻尼器設計原理，討論了阻尼器動態磁路設計中的若干技術問題；根據流體力學navier - stokes方程，分別利用newton流體特性和bingham流體特性，推導了基於平板模型和軸對稱模型的流變學方程，得出了阻尼器阻尼力的計算方法。 -
Abstract : tight trips often occur for hole undergauge during drilling in east sichuan oilfield. the paper analysis the causes of hole undergauge, proposes preventive and treatment measures which are to optimize design from geologic structure features, to use suitable fluid column pressure, to select different drilling fluid types, to adopt advanced drilling technology and perfect field technical management. therefore, good economic benefit will be obtained
文摘:川東構造在鉆探作業中因井眼縮徑造成起下鉆的阻卡時有發生，文中對造成井眼縮小的原因進行分析並劃分為五類因素，提出應在地質構造特徵方面優化設計，採用合適的液柱壓力，選擇不同的鉆井液類型，使用先進的鉆井工藝和完善現場技術管理等措施進行預防和處理，將取得重大的經濟效益。 -
Matlab procedure is coded to compute the far - field sound pressure levels of the shell excited by radial point force. the influences of modal truncation, stringers, bulkheads and damping on the shell ' s far - field sound pressure are analyzed, laying down the basis for accurate analysis of the sound radiation from fluid - loaded reinforced double cylindrical shells
本文用matlab編製程序求解了單層殼在徑向激勵力作用下的遠場聲壓級，分析了模態截斷數、縱骨、艙壁板、結構阻尼等因素對殼體遠場輻射聲壓的影響，為準確計算加筋雙層殼在水下振動和聲輻射特性奠定了基礎。 -
Computer fluid dynamics ( cfd ) is adopted to simulate the flow fields of catalytic converter while researching the working process of emission postprocessor. the velocity field and pressure field of exhaust gas are obtained. methods of structural optimization of catalytic converter for improving gas flow and conversion efficiency are proposed
本文在汽車排氣后處理裝置工作過程研究方面，運用計算流體動力學軟體，對催化轉化裝置氣流場開展了模擬，得出了氣體速度場和壓力場的分佈情況，提出了以改善氣體流動和催化轉化效率的催化轉化裝置結構優化的方案。 -
A series of results are achieved such as fluid field thermal field pressure field and stress field. those results show that sphere target has better heat exchange and convenient fluid structure and that cone target is easy to accepting neutron and has the convergent stress. taking into account the thermal - hydraulic and physics discipline, solid target choose sphere structure but liquid target still should further consider of material study
計算結果表明：圓球靶型散熱快，流道設計方便;錐形靶易於接收中子，但結構易引起應力集中，在綜合熱工、物理兩個角度，固態靶選取圓球型鎢靶比較滿意，液態靶區的計算需要在材料研究的基礎上進行。 -
On the basis of vitrinite reflectance, organic inclusions and organic geochemical study, we can built the tectonic basin - mountain formation system, analyze the uniformed temperature - pressure field and tectonic stress field of undergroud fluid, and therefore recover the process of basin - range coupling
藉助盆地中有機質的鏡質體反射率、有機流體包裹體、有機地球化學指標等參數可分析建立盆山構造地層體系和統一的地下流體溫度、壓力場及構造應力場，最終反演整個盆山的耦合歷程。 -
On the action of magneto mechanical coupling of rotating magnetic field generated by turning of exterior driver, robot was spun to generate propulsion in axial direction under the function of fluid dynamic pressure distributed on spiral surface of the robot, as a result, spiral and drive motion of the capsule type micro robot in intestine was realized
通過外驅動器的旋轉產生旋轉磁場，藉助于磁機耦合作用，驅動機器人旋轉並在其外螺紋表面形成的流體動壓力作用下產生軸向推力，進而實現膠囊式機器人在腸道內旋進。 -
Then, a pressure - based height field fluid model is proposed and the pressure to simulate the fluid surface height is justified
在此基礎上給出基於壓力高度域的水流模型，並闡述了該模型的合理性。 -
The numerical results show that an appropriate applied voltage potential across the piezoelectric shell has the effect of suppressing the reflected pressure from the sphere shell in a cone fluid field, and able to completely cancel the reflections at any chosen field points
研究表明，在壓電中加載適當的電壓可以在一個圓錐形的流體區域內有效地減小殼體對于外來聲波的反射，並且有可能完全消除任意選定空間點上的反射。 -
It measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, by field bus hart protocol it may be remote parameter setup, remote control, self - diagnosis function and so on
它測量工業過程流體壓力，將其轉化成4ma20ma dc信號輸出。同時通過現場總線協議可進行遠程參數設定遠程控制自診斷等功能。 -
Conjugate heat transfer calculation was carried out, with simple algorithm, studied up on boundary condition and modified pressure adapting algorithm, to give prediction on velocity field inside the disk cavity, the whole temperature field including fluid region and solid region, and heat transfer coefficient at fluid - solid interface. the simulation results indicate, ( 1 ) in rotor - stator disc cavity, the secondary flows near rotating disc stronger than which near state disc, keeps temperature of rotating disc lower than state disc ' s
為了使計算方法得到更多的算例驗證，本次研究做了若干算例，文中選出其中四個算例進行分析，計算結果表明： （ 1 ）在轉靜盤腔結構中，轉盤表面的二次流大部分區域都比靜盤表面的要強，所以轉盤表面換熱情況較好，轉盤的總體溫度水平要低於靜盤。 -
Wide plus ak series intelligent pressure transmitter which is universal intelligent series transmitter, it introduced advanced production technology from america and japan adopts the world leading technique, pass through strict quality control. this kind of transmitter is searched and developed independently by our company that is pressure detect transmit unit in the industrial automation control system. it measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, it may be remote parameter setup, remote control, self - diagnosis by field hart protocol
Wideplus - ak系列智能壓力變送器是引進美國和日本的先進生產工藝，採用世界領先技術，經過嚴格的品質管理，由我公司自行研製和開發的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元，它測量工業過程流體壓力，將其轉化成4ma 20ma dc信號輸出，同時通過現場hart協議可進行遠程參數設定遠程控制自診斷等功能。 -
Ak series intelligent pressure transmitter which is universal intelligent series transmitter, it introduced advanced production technology from america and japan adopts the world leading technique, pass through strict quality control. this kind of transmitter is searched and developed independently by our company that is pressure detect transmit unit in the industrial automation control system. it measures fluid pressure in the industry process and converts it into 420 ma dc signal output ; at the same time, it may be remote parameter setup, remote control, self - diagnosis by field hart protocol
是引進美國和日本的先進生產工藝，採用世界領先技術，經過嚴格的品質管理，由我公司自行研製和開發的通用智能型系列變送器，是工業自動化控制系統的壓力檢測變送單元，它測量工業過程流體壓力，將其轉化成4ma 20ma dc信號輸出，同時通過現場hart協議可進行遠程參數設定遠程控制自診斷等功能。 -
The pressure - based height field fluid model can present many important properties of fluid and thus can be used widely
本文討論的模型能夠描述水流的多種屬性，這增加了模型的應用范圍；同時渲染演算法能夠滿足實時需求。 -
In this paper, the condition of equilibrium of fluid in gravitational field is given, as well as, the relationship of pressure and height and that of density and height in the convection layer of atmosphere are discussed
本文討論了在重力場作用下流體平衡的穩定性條件，如果這一穩定性條件被打破，對流將會發生;其次，還討論了地球對流層中氣壓及密度與海拔的關系
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