推移質輸移 的英文怎麼說

中文拼音 [tuīzhíshū]
推移質輸移 英文
bed load transport
  • : 動詞1 (向外用力使物體移動) push; shove 2 (磨或碾) turn a mill or grindstone; grind 3 (剪或削...
  • : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
  • : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
  • : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
  • 推移 : 1. (時間發展) elapse; pass 2. (形勢等的變化) develop; evolve
  1. The scale effects due to unsimilar bed risistance is discussed in detail, and the correct way of scour depth is supposed. at last, a new transport rate formulas of uniform or nonuniform bed load is given

    本文還對由於阻力不相似而引起的比尺效應進行了較詳細的討論,從理論上給出了沖刷深度比尺效應的修正方法及新的均勻、非均勻沙率的計算公式。
  2. Contraposing the measurement principle of the traditional hotwire air mass flowmeter, the reason of the excursion of the result for flow measurement was analyzed and inferred when environment temperature changed ; the method for temperature compensation and the realization circuit was given ; and compared the theory output of the new type hotwire air mass flowmeter with its real output after temperature compensation

    摘要針對傳統型熱線式空氣量流量計的測量原理,分析和導出當環境溫度變化時對流量測量結果產生偏的原因;提出了一種環境溫度的補償方法和具體的實現電路;並對經環境溫度補償后的一種新型熱線式空氣量流量計的理論出和實際出進行了計算與比較。
  3. The theory of minimum entropy production or minimum rate of energy dissipation shows that a river is stable when it is in a relative equilibrium condition. ( 3 ) the river facies formulas of alluvial river have been developed using the theory of minimum rate of energy dissipation together with flow continuity and motion equations, suspended load transport or bed load transport equation. ( 4 ) the causes of the river patterns are explained using the theory of minimum rate of energy dissipation

    ( 3 )基於最小能耗率原理,以水流能耗率作為目標函數,以水流連續方程、水流運動方程及懸挾沙力公式或沙率公式作為約束條件,通過對目標函數求條件極值,分別導出以懸造床為主的顯式河相關系式和以造床為主的顯式河相關系式。
  4. Abstract : in this article, starting from solute s transport a nd diffusion equati on, aiming at the saturation state of liquid in homogeneous soil of impermeable stratum and on the condition that lots of saturated solute ( e. g. nutriment ) on t op of the soil maintain diffusion, a strict mathematical deduction is carried ou t, and the analytical solution of solute s concentration distribution in homogeneous s o il is given

    文摘:從溶擴散方程出發,針對強透水層上均土壤的液體飽和狀態,在頂層含有大量飽和溶(如養分等)維持著滲透擴散的條件下,進行嚴密的數學證,給出均土壤中溶濃度分佈的解析解。
  5. All the applications of the three models obtain inter - confirmed results so that the credible hydraulic conditions could be provided for the further calculation of the bedload transport

    由於採用多種模型對長江河口水流進行數值模擬,便於相互印證,從而為長江口沙計算提供了可靠的水力依據。
  6. Abstract : variations of flow pattern, flow velocity in deep poo l and side bar, mainstream thread, and water surface, caused by excavation project, are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system. the change of bed - load transport rate, and redeposition r ate are predicted. the influences of the excavation project on navigation are ana lyzed. grid - type and flat - type excavation alternatives are proposed and discuss ed

    文摘:採用正交曲線坐標系下的河道平面二維數學模型,研究了嘉陵江何家磧邊灘采砂后河道流勢、流態、灘槽流速、主流位置、水面高程及比降的變化規律,預測了采砂方案完成後卵石沙率變化及其對航道的影響,並對格形開挖和平整開挖方案進行了比較分析
  7. According to the theories of the energy dissipation of wave - water and sediment movement and based on the bottom sediment load formula developed by dou guoren, a formula to calculate the transport of the bottom sediment, which includes the bed load and part of suspended load, under the joint action of waves, tidal currents and wind - currents is derived

    摘要根據波動水流能量及泥沙運動原理,參考了竇國仁導底沙沙量的方法,導出波浪、潮流和風吹流共同作用下的底沙沙量(包括和部分懸沙)計算式。
  8. This new method has the capability of calculating complicated 3d grain burning surface. dealing with evolving interface of complicated material and topology change ( splitting. breaking. merging ), based on level set method and burning surface process law. this technique can get accurate area of burning surface each moment and data of geometrical structure that provide access to examination of grain change in the srm working process. 2

    結合固體火箭發動機燃面規律,在等值面函數法基礎上開發的裝藥燃面演算法能夠成功計算任意復雜三維裝藥燃面,並且具有處理復雜物邊界及其拓撲結構發生變化(如分裂、破碎、合併)的能力,能夠準確計算出發動機工作過程中各個時刻裝藥的燃燒面積,同時出裝藥幾何構形數據直觀地觀察裝藥的變化情況; 2
  9. On the base of summarizing the results, the law of vertical turbulent mixing and transportation in the natural river is researched and applied in numerical model through the theoretical derivation combined with analysis of the data of measurement in this dissertation

    本文在總結分析前人研究成果的基礎上,通過理論導、現場資料分析和數值模擬相結合的方法,著重研究天然河流中物的垂向紊動混合、的基本規律,並將這些規律運用於數學模型的數值計算中。
  10. 1 - d and 2 - d model for non - uniform bedload transport are applied to compute the amount of bedload in the south branch of the changjiang estuary. it can be found that the peak value of bedload transport in a tidal cycle, computed by 2 - d model, is obviously larger than that computed by 1 - d model, which is induced by the disequilibrium of bedload transport in cross - river direction

    在此基礎上,將非均勻公式廣到二維計算,並與一維計算結果作了對比,發現兩種計算所獲得的凈沙量相差不大,但二維沙過程線峰值較一維計算要大,這正是河道內運動橫向不均勻性的體現。
  11. Then, the influence of several hydraulic factors on the bedload transport is discussed. it is concluded that the amount of bedload transport is dominated by the runoff discharge in the datong station, and partially influenced by the range of tide

    文章進一步分析了各個水力要素對沙的影響,發現長江口沙總體上受大通流量控制,潮差對于沙的影響只有在洪季才變得明顯。
  12. Ann is a adaptive and non - linear dynamic system made from superposition of many simple components which we call neuron. the question for computation of d _ ( cmax ) belongs to incipient motion of sediment in essence, which is the same question with two different sides, because computation of critical condition ( including critical velocity critical shear stress critical power ) for a grain size under a bed - load condition is equal to computation of a grain size during incipient motion under the bed - load condition and the water flow condition given before. and computation of gross bed - load transport rate has great relationship with standard of incipient motion

    對于d _ ( cmax )的求,在本上還是泥沙的起動問題,因為尋求某種床沙條件下某級泥沙的起動條件(如起動流速、起動切應力、起動功率)和尋求某種水流和床沙條件下的起動粒徑是同一問題的兩個方面而已;而對于沙率求也和泥沙起動問題中的起動標準選擇緊密相關。
  13. Computing the maximal grain size during incipient motion d _ ( cmax ) and gross bed - load transport rate in non - uniform sediment with a wide distribution are two important indexes for description its transport law, and it is also a core question for discussion in non - uniform sediment research

    寬級配非均勻沙最大起動粒徑d _ ( cmax )和沙率的求是刻畫非均勻沙推移質輸移規律的兩個重要指標,也是研究非均勻沙運動規律的核心課題之一。
  14. Finally, bedload transport rate of dujiangyan was computed with several representative formulas

    分別用幾種有代表性的沙率公式計算了都江堰河段的沙率。
  15. The measured data show that the bedload sediment transport rate is related more closely to the effective stream power within the bed - surface layer than to the river stream power

    實測資料表明,沙率與床面層內有效水流功率有良好的相關性,且高於沙率與水流功率的相關性。
  16. Based on the relationship between energy and flow within the bed - surface layer, a relationship between the bedload sediment transport rate and effective stream power within the bed - surface layer is derived

    摘要基於床面層內的水流能量關系,導了沙率與床面層內有效水流功率的關系式。
  17. Based on 9 years ' field data of bed - load transport and the corresponding hydraulic parameters at the erwangmiao hydrology station on dujiangyan river, 6 formulae for the prediction of the sediment transport are analyzed

    摘要以都江堰二王廟水文站9年實測的卵石沙率資料和對應的水力參數為基礎,選用6個有代表性的公式進行了分析計算和對比。
  18. Verification results of more than 2800 runs of channel experiment data and field data show that this formula has good applicability and high accuracy, and is better than the other formulae for bedload sediment transport rate based on the stream power

    經2800組試驗資料與天然河流資料的檢驗表明,該關系式的適應性良好,計算精度較高,並優于同類型的基於水流功率的沙率公式。
  19. In this paper, gravel characteristics and variety along the river were studied with digital image technology ; variety of grain sizes distribution of the river bed along jinmahe section in minjian river was analyzed ; several representative formulas of bedload transport rate were proved according to the field data of dujiangyan

    本文採用數字圖象技術研究了卵石顆粒的幾何特徵及沿程變化;分析了岷江金馬河河段河床級配的沿程變化;根據都江堰的沙率資料論證了幾家有代表性的沙率公式的實用性。
  20. In this paper, a brief review of the basic theory and the computational methods for bedload transport have been made with the emphasis on the great influence of bedload on the bed - forming in rivers. a new way is proposed by using numerical simulation to study the nonuniform bedload transport in the changjiang estuary

    本文概括了沙的基本理論和計算方法,闡述了在河床演變中的重要作用,在總結非均勻沙研究現狀的基礎上,提出利用數值模擬手段研究長江河口非均勻沙的思路。
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