本文選題：MIKE3　切入點：大伙房水庫　出處：《大連理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：大伙房水庫位于遼寧省撫順市東部,是一座以防洪、灌溉、供水為主兼具發(fā)電、養(yǎng)魚等多種功能的水利樞紐工程。本文采用數(shù)值模擬的方法對大伙房水庫的水動力特征以及溫度分布的影響因素進行了研究。本文首先利用基于非結構化網(wǎng)格的MIKE3水動力模型,綜合考慮風力作用、表層熱通量以及入庫徑流等各種因素,建立了大伙房水庫三維水動力模型。通過測站水位和溫度模擬值與實測值之間的對比驗證了所建立的模型�；隍炞C好的模型,對大伙房水庫的流場進行了數(shù)值模擬研究,分析了徑流和庫區(qū)風場對于水庫流場結構的影響。結果表明風是影響大伙房水庫流場結構的主要因素之一,其對表層水體流速影響很大,并會在水庫中層和底層產(chǎn)生補償流態(tài),而吞吐流對庫區(qū)內(nèi)水流結構影響較小。對大伙房水庫的溫度場進行了數(shù)值模擬研究,分析了入庫流量和庫區(qū)風場對于水庫溫度分布的影響。模擬結果顯示垂向上大伙房水庫為水溫分層型水庫,夏季時水庫水溫處于穩(wěn)定的分層狀態(tài),秋季時水溫不分層；水平方向上春季水庫水體溫度從上游至壩前區(qū)域遞減,秋季時庫區(qū)內(nèi)水溫從上游至壩前區(qū)域逐漸升高。分析結果表明風力作用會加強水庫表面溫水層與下層水體之間的交換,使表層水溫降低,底層水溫升高。入庫流量的增大會使水庫表層和底層水溫同時升高,在一定程度上削弱溫度分層。
[Abstract]:The Dahuofang Reservoir is located in the eastern part of Fushun City, Liaoning Province. In this paper, the hydrodynamic characteristics of Dahuofang reservoir and the influencing factors of temperature distribution are studied by numerical simulation. Firstly, the MIKE3 hydrodynamic model based on unstructured grid is used in this paper. Considering all kinds of factors such as wind force, surface heat flux and inflow runoff, The 3D hydrodynamic model of Dahuofang Reservoir is established. The model is verified by comparing the simulated values of water level and temperature with the measured values. Based on the verified model, the flow field of Dahuofang Reservoir is numerically simulated. The effects of runoff and wind field on the flow field structure of the reservoir are analyzed. The results show that wind is one of the main factors affecting the flow field structure of Dahuofang Reservoir, which has a great influence on the flow velocity of the surface water body, and will produce compensation flow patterns in the middle and bottom layers of the reservoir. However, the effect of huff and puff flow on the flow structure in the reservoir area is relatively small. The temperature field of Dahuofang Reservoir is numerically simulated. The effect of inflow flow and wind field on the temperature distribution of the reservoir is analyzed. The simulation results show that the vertical Dahuofang reservoir is a layered reservoir with water temperature, the water temperature of the reservoir is in a stable stratified state in summer, and the water temperature is not stratified in autumn. In the horizontal direction, the water temperature of the reservoir decreases from the upstream to the front of the dam in spring, and the water temperature in the reservoir increases gradually from the upstream to the front of the dam in autumn. The results show that the wind force will strengthen the exchange between the warm water layer on the surface of the reservoir and the lower water body. The surface water temperature decreases, the bottom water temperature increases, and the water temperature increases simultaneously, which weakens the temperature stratification to a certain extent.
【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TV697.21

【參考文獻】

相關期刊論文 前3條

1 戚琪;彭虹;張萬順;雷少平;熊文;;丹江口水庫垂向水溫模型研究[J];人民長江;2007年02期

2 朱耀華，方國洪;陸架和淺海環(huán)流的一個三維正壓模式及其在渤、黃、東海的應用[J];海洋學報(中文版);1994年06期

3 任華堂;陳永燦;劉昭偉;申滿斌;朱德軍;;深水湖泊水庫水溫數(shù)值計算模型研究[J];水力發(fā)電學報;2007年03期

相關碩士學位論文 前1條

1 廖振華;青草沙水庫水動力數(shù)值模擬[D];上海交通大學;2011年

，

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