磁流體動力的 的英文怎麼說
中文拼音 [cíliútǐdònglìde]
磁流體動力的
英文
hydromagnetic- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 體 : 體構詞成分。
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 的 : 4次方是 The fourth power of 2 is direction
- 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
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Process of radiation magnetohydrodynamics in al wire - array z - pinch
箍縮的輻射磁流體動力學過程Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星(如木衛三,水星,地球,木星和土星)和恆星(如太陽)具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動,磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線,即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色,並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型Theoretical researches on solar activity, solar flare and cme were involved in many fields of foundational physics such as plasma astrophysics, magnetohydrodynamics ( mhd ) and so on. the forecast of solar activity, a main branch of space weather, was becoming more and more significant for preventing space disaster and for many aspects of space science
探索太陽活動的規律、太陽耀斑及其伴隨cme的先兆、觸發過程及能量傳播機制等等,從理論上推動了等離子體天體物理、磁流體力學等諸多基礎理論的發展,有著重要的理論意義;而對太陽活動的預報,是國際前沿科學?空間天氣學的重要組成部分,對避免空間災害、為航空航天科學提供服務等方面,具有重大的實際應用價值。The hyperbolic conservation laws with relaxation appear in many physical systems such as nonequilibrium gas dynamics, flood flow with friction, magnetohydrodynamics, etc. firstly, the thesis proves that there exists a unique global smooth solution for the cauthy problem to the hyperbolic conservation laws system with relaxation ; secondly, in the large time station, the thesis proves that the global smooth solutions of the hyperbolic conservation laws system with relaxation converge to rarefaction waves solution at a determined l ( p > 2 ) decay rate
帶鬆弛項的雙曲型守恆律組出現在諸多的物理系統中。例如,非平衡態的氣體動力學、帶摩擦的水流、磁動力學等。本文首先證明,帶鬆弛項的雙曲型守恆律組的柯西問題的整體光滑解的存在唯一性;其二,證明了帶鬆弛項的雙曲型守恆律組的解與相應的平衡態守恆律的稀疏波解在大時間狀態下的l ~ p衰減率。Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity
該模型的主要特點是: ( 1 )它採用了三尺度復合表面模型的思想來計算海面的電磁散射,考慮了中等尺度波對紋波的進一步調製作用,彌補了傳統雙尺度模型的不足; ( 1 )它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用,實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬; ( 3 )它把海面長波的軌道速度作為基本的動態成分,並依此來考慮海面運動對sar回波信號的影響。Based on the special property of magnetic fluid ( mf ), we fill the magnetic fluid into the working clearances of the servo valve torque motor. one side, the magnetized magnetic fluid can exert a damping torque on the torque motor armature and reduce vibration of the armature ; on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid ’ s larger magnetic permeability
基於磁流體所具有的特殊性質,將磁流體添加到伺服閥力矩馬達的工作間隙中,一方面磁流體被磁化后可增大銜鐵的阻尼力,減少振動;另一方面由於力矩馬達氣隙中磁導率的提高,使氣隙中的磁通量增大,力矩馬達的磁路效率和輸出扭矩將增大,因此可以提高力矩馬達的固有頻率和伺服閥的響應速度。Magnetic fluid shows higher saturation when it is exposed to magnetic field. in this paper, magnetic fluid is used to improve the dynamic performance of jet pipe servo valve by filling magnetic fluid in the working clearances of torque motor between armature and core
本文利用磁流體在外加磁場作用下,具有較大磁化強度的特點,提出了在力矩馬達銜鐵和鐵芯的工作氣隙中加入磁流體,利用磁流體來改善射流管伺服閥動態性能的方法。In addition, considering the essential characteristics of the fusion - fission hybrid reactor, the preliminary analysis and research of the mhd pressure drop of liquid metal that flow through the fuel packed pebble bed - based blanket are given
另外,基於聚變中子源驅動的次臨界清潔核能系統,針對聚變?裂變嬗變混合堆的本質特點,對液態金屬球床包層進行初步地探討和研究,進行了球床液態金屬溢流的磁流體動力學流動的建模分析和計算。The study of the interaction of magnetic fields and electrically conducting liquids or gases, such as molten metal or plasma
磁流體動力學對磁場和導電的液體或氣體,諸如熔化的金屬或者等離子區之間的相互作用的研究In view of the progress of mr techniques and automotive suspension techniques, some mr damping techniques for automotive suspension systems, including system theory, experimental investigation, design method, manufacture technique, and models of the dampers, etc. have been presented in this dissertation in order to progress the mr fluids and automotive suspension techniques based on mr damper
本文根據磁流變技術的研究現狀和汽車懸架技術的發展趨勢,系統研究了汽車磁流變阻尼技術,包括:磁流變效應、阻尼器系統理論、設計方法、實驗研究和阻尼器的動力學模型,旨在推進磁流變體和磁流變阻尼器在汽車工程中的應用研究。As a new type of ship propulsion, ac magnetohydrodynamic ( mhd ) propulsion apply alternating magnetic field through seawater, then a lorentz force will act to move the seawater and thus drive the ship to move
磁流體( mhd )推進是一種新型的船舶推進方式。它利用海水中電流和磁場間的相互作用力使海水運動,其反作用力為推力,推進船舶運動。Furthermore, asymptotic techniques to analyze large hartmann parameter flow and interaction parameter flow are employed and an analytical model has been developed for the calculations of mhd pressure drop of liquid metal flow in a packed pebble bed
利用漸近線分析法對大hartmann參數流進行分析,給出了球床液態金屬溢流的磁流體動力學壓力損失的建模分析和計算結果。First in this paper, the characteristics and control methods of bldcm is discussed. on the basis of the run state and control method of the bldcm, combining the electric power and electronic technology, micro electric technology, special integrated chips and the theory of motor control theory, setting up the model of electric power inverter system by using the simulating software - matlab, the control schemes are given when the motor is working in the state of electromotion and electrical regeneration
首先本文介紹了永磁無刷直流電動機的特點及其控制方法,結合電力電子技術、微電子技術、專用集成晶元、電動機以及控制等理論,在重點研究了電動汽車用永磁無刷直流電動機的運行狀態和控制方式的基礎上,利用matlab模擬軟體建立了電力電子逆變系統的模擬模型,給出了電機處于電動狀態和能量回饋狀態時的控制策略。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。Before reforming the code to be a mhd, the boundary condition of sss code is modified, so that we can calculate the electro - magnetic implosion of ideal conductive liner, where the magnetic field diffusion is neglected
在進行一維磁流體力學改造之前,我們計算了磁壓驅動沒有磁擴散的理想導體內爆算例,主要是對sss程序的壓力脈沖邊界條件進行修改。At last, this paper derives the rules of damping torque due to magnetic fluid in the working clearances of torque motor and lays the groundwork for the study of torque motor dynamic characteristics and servo valve characteristics
最後,結合模擬分析和實驗數據,得出了磁流體在力矩馬達工作間隙中的作用規律,從而對力矩馬達的動態特性及伺服閥整體特性研究奠定了理論基礎。" for fundamental work and discoveries in magneto - hydrodynamics with fruitful applications in different parts of plasma physics
磁流體動力學的基礎研究和發現,及其在等離子物理富有成果的應用It will exert resistance and damping force to the torque motor armature, so that the dynamic performance, especially the stability, of flapper - nozzle servo - valve can be improved. the self - excited oscillations and noise can be removed. at the same time, as magnetic fluid has a higher magnetic permeability, the efficiency of torque motor magnetic circuit can be improved
由於磁流體具有的較大磁導率和較大的磁化強度,把磁流體添加到伺服閥力矩馬達的工作氣隙中,可提高伺服閥力矩馬達的磁迴路效率,增加伺服閥的阻尼,從而改善噴嘴擋板伺服閥的動態特性,抑制及消除其自激振蕩和噪聲。Zheng, h. n., su, s. j., wang, s. and wu, s. t., 2000, magnetohydrodynamic simulation on formation of coronal surges, chinese j. space sci., 20, 1
鄭惠南,蘇守軍,王水,吳式燦, 2000 ,日冕沖浪形成的磁流體動力學模擬,空間科學學報, 20 , 1The multi - functional blanket for waste transmutation and fuel production has been developed. based on studies for feasibility and reliability of fusion - driven hybrid reactor, the conceptual design of dwtb is presented, especially the analysis activities of liquid metal mhd pressure drop in the fds blanket that is included into thermal - hydraulic analysis
本論文針對雙冷嬗變核廢物包層設計,從液態金屬磁流體動力學觀點出發,提出與液態金屬mhd效應相關的研究設計概念,並對雙冷嬗變核廢物包層中液態金屬mhd壓降進行分析研究和模擬計算,評價其可行性。分享友人