溢流壩面 的英文怎麼說
中文拼音 [yìliúbàmiàn]
溢流壩面
英文
roller-way face- 溢 : Ⅰ動詞(充滿而流出來) overflow; spill Ⅱ形容詞(過分) excessive
- 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...
- 壩 : 名詞1 (攔水建築物) dam2 (固堤建築物) dyke; embankment 3 [方言] (沙灘; 沙洲) sandbar; sandba...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 溢流 : effluent flow
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The typical velocity field and the pressure on the step surface of the stepped spillway are measured using the laser doppler anemometer and the piezometer tube respectively
採用多普勒激光測速儀和測壓管分別對階梯溢流壩面典型速度場和階梯表面壓力進行詳細測量。Taken the bank spillway at yubeishan reservoir as an example, the water loads acted on the spillway, such as static water pressure, dynamic water pressure, shear stress on the surface of the step and so on, are calculated, which can provide evidence to the stability analysis of the dam slope and slope protection
並以萬縣魚背山水庫岸邊溢洪道為例,計算了溢洪道上所受的水流荷載及其分佈,為土石壩坡和護面的穩定分析提供了依據。通過計算證實了既使在較大的單寬流量下,緩坡上的階梯仍有較高的消能率。According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained
根據施工過程和邊界條件,對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算,並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖,典型點溫度和應力歷時曲線圖,逐月最高、最低溫度和最大拉應力及相應位置等成果。The result show that the position of free surface is higher because of frusta of brake, especial obvious in the head of frusta of brake ; flux coefficient and pressure on dam are quite influenced by type of frusta and 3 a type frusta of brake relative to 2 type frusta of brake has bigger flux coefficient and smaller pressure on dam ; obvious influence of ability of discharge flow for different ratio of thickness of frusta and breadth of brake and pressure on dam reduces with increasing ration of thickness of frusta and breadth of brake, while bigger flux coefficient is obtained when tlb = 0. 2
結果表明,閘墩河海大學博士論文的存在抬高了水面線的位置,其中在閘墩頭部尤其明顯;墩型對流量系數和壩面壓力影響較大, 3a型閘墩相對於2型閘墩具有更大的流量系數和更小的壩面壓力:不同的墩厚閘寬比t / b對泄流能力也將產生顯著的影響,隨著墩厚閘寬比的增加,壩面壓力降低,而當t / b二0 . 2時溢流壩具有更大的流量系數。( 6 ) 3d integer model of spillway and frusta of brake are established and numerical computation of 3d viscous flow over spillway is completed. the influence of frusta of brake for design parameters such as shape of free surface, pressure on dam, flux coefficient is computed aim at type of frusta of brake and disposal on dam and compute result of different type of frusta and disposal model is compared
6 )通過建立溢流壩和閘墩的三維整體模型,完成了對三維過壩水流粘流場的數值計算,針對閘墩的型式及在壩面的布置計算了閘墩對水面線形狀、壩面壓力、流量系數等設計參數的影響,並將不同墩型與布置形式的計算結果進行比較。Numerical simulation of energy dissipator with new style flaring gate pier and stepped spillway
新型寬尾墩和階梯式溢流壩面一體化消能工數值模擬In order to study the characteristics of the stepped spillway overflow comprehensively and seek for the measure to increase the energy dissipation of the stepped spillway at large unit discharge, the method of turbulence numerical simulation and model test are used to study the stepped spillway overflow. in view of the curved free water surface, complicated boundary condition and turbulence flow, it very difficult to simulate the stepped spillway overflow
為了對階梯溢流壩面流場特性進行全面的研究,同時探求在大單寬流量下提高階梯溢流壩消能率的措施,本文採用紊流數值模擬與實驗相結合,數值計算為主、實驗為輔的研究方法對階梯溢流壩面流場進行了較系統深入的研究。The results of the three dimensional simulation emphatically show flow characteristics change along the spillway width and furthermore verify that the combination of k - e turbulence model with the vof model and unstructured grid can successfully simulate complex three dimensional turbulent flow on the stepped spillway
三維計算著重體現了流場沿溢洪道寬度方向的變化規律,進一步驗證了vof模型、非結構網格與卜。紊流模型相結合能夠成功地模擬三維階梯溢流壩面復雜流場。By the turbulence numerical simulation, the optimization calculation of some key factors that influence the stepped spillway overflow, such as the spillway slope, the step size, the transition steps and so on, are carried out
本文首次應用數值模擬的方法對影響階梯溢流壩面流場特性的一些重要因素,例如壩面坡度、階梯尺寸、過渡階梯等,進行了優化計算。In harsh climate region, mere exists obvious local stress concentration near the upstream and downstream of the exposed - in - winter horizontal surface of the rcc dam, and the surface of spillway bucket though heat insulation is applied on the surfaces, tensile stress still exceeds the allowable one of concrete. this paper puts forward to adopt preset crack to avoid occurring more cracks. the special crack model is applied to simulate the dam preset crack, and the joint model of fracture mechanics is induced into strain - soften model
在結構措施方面,針對嚴寒地區高碾壓混凝土重力壩壩體越冬層面的上、下游面附近及溢流壩堰面反弧段表面有明顯的局部應力集中象現,在已採取一定的表面保溫防護的條件下,拉應力仍然超過混凝土容許拉應力,開裂難以避免,進而提出設置碾壓混凝土壩表面預留縫結構措施並對該措施進行深入研究,包括預留縫的擴展穩定和壩體沿預留縫的穩定性,以避免大壩在無措施部位開裂,解決大壩越冬層面水平施工縫的開裂問題。分享友人