錐形流動 的英文怎麼說
中文拼音 [zhuīxíngliúdòng]
錐形流動
英文
conical flow-
According to the experimental data of droplet size 、 particle spectrum range 、 droplet cone shape 、 flow rate 、 cover area and cover area rate which obtained through changing the pressure of power sprayer and the nozzle diameter in greenhouse ， this paper made comparative analysis on atomizing performance in same pressure and different nozzle type between same nozzle type and different pressure. the conclusion is that : the ejection rate and the droplet cone shape change with the variation of pressure and nozzle diameter ， average particle diameter decreases obviously and particle quantity increases obviously with the increase of pressure and decrease of nozzle diameter. these results will lay experimental foundation for precise spraying 、 low pollution and highly effective operation
本文根據溫室內動力噴霧機壓力與噴嘴孔徑的變化影響霧滴大小、粒譜范圍、霧錐形狀、流量、覆蓋面積及覆蓋面積率的試驗數據，對相同壓力下不同噴嘴型號和相同噴嘴型號時壓力不同時的微粒化性能進行對比分析和研究，得到如下結論噴出量與霧錐形狀隨著壓力和噴嘴孔徑大小變化而變化；平均粒徑隨著壓力的增加和噴嘴孔徑的減小而明顯減小；粒數隨著壓力的增加和噴嘴孔徑的減小而明顯增多，為精噴量、低污染、高防效的防除作業奠定了實驗基礎。Using processed march cylinder, tapered circular mould, u - shaped instrument, l - shaped concrete fluidity instrument and some other testing instruments, and after research and study to physical and chemical property of various raw material. systematic tests have been carried out in respect of consistency between cement and additive, concrete fluidity, concrete filling - up - space and penetration capability and concrete anti - segregation property, basing on prudent and careful analysis to results of 34 - time tests a nd more than 500 data, and with utilization of combined additive, we finally conclude the proper mix design range for the self - densifying high performance concrete with ideal working performance at all respects
通過加工的march筒、截錐形圓模、 u型儀、 l型混凝土流動儀等實驗儀器以及對各種原材料的物理及化學性能展開詳盡的調查研究，進行了多種材料下的水泥與外加劑相容性、混凝土的流動性、混凝土的填充性和鋼筋通過性、混凝土的抗離析性等系統試驗，在對34組試驗、 500多個數據的詳細認真分析的基礎上，利用復合后的外加劑，得出各項工作性能均較佳的自密實混凝土所用原材料比例范圍。Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles
文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外形駐點熱流密度的計算，分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法，概述了航天飛機迎風面中心線和離開中心線橫向熱流密度的計算.計算結果表明，本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度Most of this area was shallow - lake, semi - deep lake and deep lake sedimentary environment, except that the area around the well ou44 was a set of steep - slope fan - delta and the dawan area was a set of small - scale fan - delta. there were fan - delta, turbidite - fan, shallow - lake, shore - marsh, semideep - lake and volcano - debris facies. in the area of the well ou39 and ou44, fan - deltas developed both in the middle and the top strata of the third member of the shahejie formation
研究表明，粗面巖sio _ 2含量較高，流動性小，容易形成巨厚的巖鐘或巖錐，對成藏有利，同時其位於構造高部位，由於其大部在水面之上，冷卻時間長，易於從容結晶，同時還有大量裂縫作為儲集和滲濾的空間，使其成為良好的儲層。In this thesis, a 2 - d axial symmetric n - s equation was solved by using steger - warming flux splitting, muscl, b - l model and finite volume method to simulate an experiment, which was to observe explosion phenomenon
本文用steger - warming分裂和b - l湍流模型的有限體積演算法求解二維軸對稱navier - stokes方程，數值模擬了錐形激波管中爆炸波運動和爆炸波正壓和負壓脈沖。Metallic tube connections for fluid power and general use - part 4 : 24 o cone connectors with o - ring weld - on nipples
流體動力和一般用途的金屬管連接件.第4部分: o型環焊接在短接管上的24度錐形連接器分享友人