波浪計算模式 的英文怎麼說
中文拼音 [bōlàngjìsuànmóshì]
波浪計算模式
英文
swan- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 浪 : Ⅰ名詞1 (波浪)wave; swell; billow; breaker 2 (像波浪起伏的東西) things undulating like waves 3...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 算 : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 波浪 : wave
- 計算 : 1 (求得未知數) count; compute; calculate; reckon; enumerate 2 (考慮; 籌劃) consideration; pla...
- 模式 : model; mode; pattern; type; schema
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A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )
採用一維2 . 5階湍封閉混合層模式,根據參數化方法對波浪破碎導致的能量耗散率進行了估計,通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響,計算了不同風應力強迫下的混合層流場結構和湍能量收支(下述給出的結果是取風速為20m s得到的) 。Especially for ship and ocean - platform structure, there are a lot of stochastic factors affecting their design, for example, wave, tidewater and wind which act on the ship surface are indeterminate ; material data and dimension data provided may be not completely consistent with that of real structure ; some hypothesis, for convenience and simplification, make the calculation model is not the same as the real structure
特別對船舶與海洋平臺等結構,影響結構設計的隨機因素很多,例如作用在船舶上的波浪、潮水和風荷載都是不確定的;結構中用的材料物理性能數據可能與提供的有所差異;名義尺寸也可能與實際結構不完全一致;計算中引進的一些假設,也會使計算模式與實際情況有所偏離等等。So, optimization of breakwater planning is of great practical value and should be resolved immediately. at first, the paper narrates the development of numerical modeling, which includes shallow water dynamics theory and method, and compares the boussinesq model and mild - slope equation model. the purpose is to select one model that best fit for wave calculation in harbor engineering
本文首先綜述了波浪數值模擬的發展概況,其中包括淺水動力學的常用理論和方法,並詳細比較了目前使用較多的boussinesq模型和緩坡方程模型,其目的是選擇其中較為適合港區工程波浪計算的模式,並將其作為優化模型的驗證或用於適應度計算。Finally a set of equations with initiate values for boundary value problem is established where the velocity potential and its normal derivative are unknowns. because the model includes the effects of both the time and space to the velocity potential of free surface, it can be applied to strong nonlinear wave. as examples, solitary wave is computed in the numerical flume
推導給出計算域內以所有節點波勢函數和波面位置高度的時間增量為未知量的線性方程組,並同時考慮時間因素和空間變位對波面勢函數的影響,在預設的計算精度下,通過時步內的循環迭代逐一確定每個時步上的波面運動位置,從而建立了一種可適于求解強非線性波浪變形計算的數值模式。Then a simplified computational modal of damping isolation systems is established for a platform structure, and the relationships between the parameters of isolation layer and structural damping ratio, including their vibration - suppressed effect on the whole structure and the relative displacement of isolation layer are studied, and the simulation analysis under several representative load case of random wave force and earthquake affairs is performed. under random wave force, using complex mode theories, non - classically damp problems considering the interaction between the structure and wave, lying in deepwater, are studied. and the resolution solution of structural response are achieved. the results of calculating and analysing show that adding damping isolation to a jacket is an effective way to reduce vibration for offshore platforms
針對某一典型平臺結構,建立了海洋平臺結構阻尼隔振體系簡化計算模型,進行了波浪荷載工況和地震工況的數值模擬,研究了隔振參數與結構阻尼比的關系以及它們對結構整體和隔振層層間相對位移的控制效果,運用復模態理論研究了位於較深水位的固定式導管架海洋平臺在隨機波浪力作用下考慮結構與波浪相互作用時運動方程中非經典阻尼的解耦問題,獲得了結構響應的解析解。We have made a full theoretical analysis of the wave property and the wave parameters of the flap - type wave generator in the towing tank of our school, and confirmed that should make the factor that the performance of the wave generator give play to normally to influence. in allusion to that the old wave generator can not simulate sea wave, upgrade and transform to this system change the control computer system and install additional d / a change card, redesign the wave control interface and transmission means of control signal, give up the disk machine that can not be used, make the wave - making control voltage signal that has translated direct input the wave controller, make wave controller to make waves through servo system
對我校船模水池原有的搖板式造波系統的性能進行了理論分析,針對水池原有造波機系統模擬海浪的不足,對該系統進行升級與改造,更換了主控計算機並加裝d a轉換卡,重新設計了造波控制信號的介面與傳輸方式,捨去了原系統中現已淘汰的磁盤機,使轉換后的造波控制電壓信號直接輸入到造波控制器中,再由造波控制器通過液壓伺服系統驅動造波板進行造波。The sliding mode controller with the line - of - sight ( los ) guidance is adopted for the rudder control to steer the ship in waves with the functions of track keeping and roll reduction, in which the design parameters are optimized from genetic algorithm
配合los導引的滑動模式控制器是以操舵控制的方式,使船隻在波浪中的航跡能維持在既定航線並降低橫搖量,而控制器的設計參數是以基因演演算法來求得最佳化。This paper presents the experimental investigation of random wave impact on piled wharves with different shore connecting structures, also the certification analysis by the numerical simulation results
本文應用物理模型試驗和計算機數值模擬相結合的手段,對不同接岸型式碼頭面板底部受到的隨機波浪沖擊作用進行了研究。The effect of the change of surface elevation on the wave development and elimination is pointed out for the first time, which provides the necessary theoretical basis for the development of united current - wave - tide model ; hi the discussion of the effects of waves on currents, a variety of wave - induced forces on the geostrophic and viscous condition and their producing mechanism are introduced systematically, their corresponding wave - induced currents are also analyzed qualitatively. moreover, a complete expression of wave - induced reynolds stresses tensor is presented for the first time
在浪對流作用的討論中,系統的闡述了海浪在地轉作用和粘性條件下所產生的各種作用力,詳述了它們的生成機制,並定性的分析了相應的波生流,同時,首次提供了地轉條件下浪致雷諾應力張量的完整表達式,為實現海流模式與海浪模式的并行數值計算提供了一種簡便的途徑。Abstract : on the basis of the space structure model, the behavio r of natural oscillation of open pile - supported beam - slab wharf and its dynamic response to wave forces were calculated and analyzed. it is pointed out that dyna mic analysis should be made when an open pile - supported wharf is designed
文摘:本文在空間結構模型的基礎上,對開敞式樁基梁板碼頭結構的自振特性及其在波浪力作用下的動力響應進行了計算分析,指出開敞式樁基碼頭設計應進行動力分析。Several verifications are performed to examine the accuracy of the numerical model of the extended mild - slope equation at simulating wave refraction, diffraction and reflection on some representative topographies and good agreement has been achieved
針對多個典型地形按本文研製出的數學模式進行了波浪折射、繞射和反射的驗證計算,數學計算結果和理論解或實驗值吻合程度良好,說明本文的模式能很好地反映波浪的折射、繞射和反射現象。分享友人