流
- 与 流 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In chapter 1, an up to now synthetically evaluation is given on the research ways and conclusions about jet in cross-flow. Considering the shortage of previous research ways and techniques (the instantaneous flow field and vortices field can not be properly get), in addition to the deficiency of corresponding conclusion (mainly concentrate on the analysis of time-average but little on structures of flow and action of vortex), the research way and content is draft out in this part. Though PIV, the time-average, instantaneous flow field and vortices field can be get, that will unveil the coherent vortex and its course of generation, development and evolvement, with the assistance of K-ε model and Hybrid Finite Analytic Method , which will proof-test the experiment result and bring some complementary, more profound research about the 3-D characters can be done. Using some fundamental topological theory and principle on flow analysis, with anglicizing of vortex structure, a reasonable description is the topological characteristic of near field in JICF given.
首先在第一章中对横流中湍射流的以往研究方法和研究成果给予了综合的评述,针对横流中湍射流旋涡结构以往研究中研究方法的局限性(不能很好得到流动的瞬态流场及涡量场)和相应研究成果中存在的不足(大都集中在时均特性的分析,对流动的内部结构和旋涡的运动阐述很少),明确了本文的研究方法和研究内容:通过PIV流动测量显示技术得到流动的时均及瞬态流场、涡量场,来揭示横流中湍射流的时均、瞬态流场、涡量分布特性,和各种具有拟序结构性质的复杂涡系的产生、发展及演化过程;结合湍流k-ε双方程模型及相应的HFAM计算方法,对于实验进行相互验证和补充,从而更为充分地研究各种旋涡的三维特性;利用拓扑分析的一些基本原理及相关规则,依据对各种旋涡结构的分析,做出对射流近区流场拓扑性质的合理描述。
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According to the seepage equation of the groundwater and using the finite element method, this thesis establishes the mathematics model for two and three dimensional seepage.
采用有限元理论,以地下水渗流方程为基础,针对基坑降水建立了地下水的二维和三维渗流数学模型,完善了深基坑降水渗流计算方法。对某一假定的深基坑降水工程分别进行二维和三维渗流数值模拟。
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The agglomerations sizes of fine particles in the fluidized bed are smaller under higher SPL. The sound waves have little effect on the agglomerations when it is under 120dB. But the agglomerations sizes will be dramatically reduced to 180μm from 720μm when the SPL is above 130dB. The umf has a minimum value at an appropriate frequency of sound and a good quality of fluidization can exist in a greater ranges of frequency of sound when the SPL is higher.
当频率高于120Hz,流化床中形成聚团尺寸随着频率的增加而增大,最小流化速度也随着频率的增加而增大,当频率低于120Hz,流化床中形成聚团尺寸随着频率的减小而增大,最小流化速度也随着频率的减小而增大;料层越高,声波的衰减越大,超细颗粒的流化效果越差,最小流化速度越大。
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To determine the scope of the work involved in calculating the output power of spring to overcome the unbalanced force.
流向的选择:(1)在节流口,介质对着阀芯开方向流为流开,向关方向流为流闭。
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Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins;2. Traditional sediment tank has been improved in three aspects by putting an adjusting flow wall in the entrance of water, a spillway trough on spillway crest along the flow direction, redesigning the flush device and an auxiliary fl ush facility.
通过在沉砂池的进水处加调流墙、在溢流堰上沿水流方向设溢流槽、对排砂装置进行改进以及设置辅助冲砂设施三个方面对传统平流式沉砂池进行了改进,设计提出了一种新型平流式沉砂池,可以大大提高沉砂池的沉淀效率,特别是对细颗粒泥砂的沉淀具有很好的效果。
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The power spectrums of the time serials of traffic flow are illustratecd.Through the analysis of the power spectrum of the headway,it is clear that there are variations of noise and wide apices.
有关交通流混沌现象的研究大多是以跟驰模型产生交通流,并对所产生的交通流施加一定的干扰,来研究这种理论交通流的混沌现象、证明混沌的存在。
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Said invented method for and device adopt MCU or logic or logic chip detecting said ringing current signal, backboard ringing current signal and mutual sent signal, and sequential control sequential control, avoiding switch device hard switching and arcking, raising switch device and backboard reliability.
本发明方法及装置通过采用MCU或逻辑芯片检测本板铃流信号,背板铃流信号和互送信号,并采用时序控制,避免了在铃流开机和切换时的开关器件硬切换,以及铃流的在开关电路切换时的拉弧,提高了开关器件的可靠性;而且把开关电路从通讯设备插框背板转移到单板上来,提高了背板的可靠性,降低了后续的维护和检修困难。
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The electron beam current measured by the beam current monitor (BCT3) is almost in direct proportion to the induced voltage of the fundamental harmonic. When the parameters of the pre-buncher and buncher are adjusted greatly while the beam current being unchanged, the fifth harmonic signal has a great change, but the fundamental signal changes gently. The test results are all in good agreement with the theoretic analysis.
根据不同时刻的记录,基频腔峰值电压与束流流强探测器BCT3所测流强值近似成正比关系;当大幅改变预聚束器和聚束器参数而束流流强不变时,反映聚束质量的五倍频腔信号也随之大幅改变,而反映流强信号的基频腔信号则变化不大,这些试验结果与理论分析完全一致。
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The measured bunch length ranging between 1.4 mm and 2.0 mm agrees well with the theoretic calculation of 1.5 mm.The electron beam current measured by the beam current monitor(BCT3) is almost in direct proportion to the induced voltage of the fundamental harmonic.When the parameters of the pre-buncher and buncher are adjusted greatly while the beam current ...
根据不同时刻的记录,基频腔峰值电压与束流流强探测器BCT3所测流强值近似成正比关系;当大幅改变预聚束器和聚束器参数而束流流强不变时,反映聚束质量的五倍频腔信号也随之大幅改变,而反映流强信号的基频腔信号则变化不大,这些试验结果与理论分析完全一致。
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The electron beam current measured by the beam current monitor(BCT3) is almost in direct proportion to the induced voltage of the fundamental harmonic.When the parameters of the pre-buncher and buncher are adjusted greatly while the beam current being unchanged,the fifth harmonic signal has a great change,but the fundamental signal changes gently.
根据不同时刻的记录,基频腔峰值电压与束流流强探测器BCT3所测流强值近似成正比关系;当大幅改变预聚束器和聚束器参数而束流流强不变时,反映聚束质量的五倍频腔信号也随之大幅改变,而反映流强信号的基频腔信号则变化不大,这些试验结果与理论分析完全一致。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。