本文選題：華山湖 + 水動(dòng)力��； 參考：《山東大學(xué)》2015年碩士論文

【摘要】：物理模型試驗(yàn)和數(shù)值模擬是研究湖泊水動(dòng)力和水質(zhì)問(wèn)題的有力方法,對(duì)它的研究具有重要的理論意義和應(yīng)用價(jià)值。本文以濟(jì)南市華山湖為研究對(duì)象,構(gòu)建了華山湖水工模型,建立了二維水動(dòng)力和水質(zhì)模型。采用建立的模型模擬了擬建的華山湖的流場(chǎng)和水質(zhì)變化,旨在為華山湖工程的設(shè)計(jì)和建設(shè)提供重要的科學(xué)依據(jù)。論文主要研究?jī)?nèi)容如下：(1)華山湖水工模型試驗(yàn)研究。根據(jù)華山湖設(shè)計(jì)方案,建造華山湖水工模型,在考慮正常工況,利用華山溝自小清河引水、山頭店溝出流的條件下,模擬湖區(qū)水體流動(dòng),分析湖區(qū)水勢(shì)、有無(wú)死水區(qū)域,分析湖區(qū)內(nèi)的平面布置、島嶼、水工建筑物布置、駁岸形式、湖底高程設(shè)計(jì)和水體深度分布等的合理性,并提供修改意見(jiàn),使之有利于水體循環(huán)流動(dòng)。(2)華山湖水動(dòng)力數(shù)值模擬。利用Mike21軟件建立華山湖二維水動(dòng)力模型,利用試驗(yàn)資料進(jìn)行模型的率定和驗(yàn)證。采用建立的模型模擬計(jì)算不同工況下整個(gè)湖區(qū)的流場(chǎng)、水位等水力要素。根據(jù)模擬結(jié)果,對(duì)華山湖平面幾何造型、水體深度分布、駁岸形式等進(jìn)行修改設(shè)計(jì),以利于湖區(qū)水體的流動(dòng),增加流動(dòng)復(fù)氧和水體交換水平。(3)華山湖水質(zhì)模擬。根據(jù)實(shí)測(cè)的水質(zhì)資料,利用Mike 21-ECO Lab水生態(tài)模塊構(gòu)建華山湖水質(zhì)模型,將華山湖水動(dòng)力模型與水質(zhì)模型進(jìn)行耦合,模擬華山湖湖區(qū)水質(zhì)情況并分析水質(zhì)的演變趨勢(shì)。(4)湖區(qū)設(shè)計(jì)方案優(yōu)化。根據(jù)華山湖水工模型試驗(yàn)與數(shù)值模擬的結(jié)果,結(jié)合實(shí)際工程情況,提出更有利于華山湖湖區(qū)內(nèi)水體流動(dòng)特性的最佳布置方案,并對(duì)湖區(qū)水質(zhì)提出合理建議與整治措施。
[Abstract]:Physical model test and numerical simulation are powerful methods to study lake hydrodynamic and water quality problems, which have important theoretical significance and application value. Taking Huashan Lake in Jinan as the research object, the hydrodynamic and water quality models of Huashan Lake were established. The proposed model is used to simulate the flow field and water quality change of the proposed Huashan Lake in order to provide an important scientific basis for the design and construction of the Huashan Lake Project. The main contents of this paper are as follows: 1) hydraulic model test of Huashan Lake. According to the design scheme of Huashan Lake, the hydraulic model of Huashan Lake is constructed. Under the condition of diversion of water from Xiaoqing River and discharge of Shantoudian ditch by using Huashan ditch under normal working conditions, the water flow in the lake area is simulated, the water potential of the lake area is analyzed, and there is no dead water area. This paper analyzes the rationality of the layout of the lake area, the island, the hydraulic structure, the form of the barge, the design of the elevation of the lake bottom and the distribution of the depth of the water body, etc., and provides some suggestions for modification to facilitate the hydrodynamic numerical simulation of the Huashan Lake. A two-dimensional hydrodynamic model of Huashan Lake was established by using Mike21 software, and the rate of the model was determined and verified by using the experimental data. The established model is used to simulate and calculate the hydraulic factors such as flow field and water level in the whole lake area under different working conditions. According to the simulation results, the plane geometry modeling of Huashan Lake, the depth distribution of water body and the form of barge are modified to facilitate the flow of water in the lake area and increase the level of flowing reoxygenation and water exchange. 3) the water quality of Huashan Lake is simulated. According to the measured water quality data, the water quality model of Huashan Lake is constructed by using Mike 21-ECO Lab water ecological module, and the hydrodynamic model of Huashan Lake is coupled with the water quality model. Simulation of water quality in Huashan Lake region and analysis of water quality evolution trend. According to the results of hydraulic model test and numerical simulation of Huashan Lake, combined with the actual engineering situation, the optimal arrangement scheme of water flow characteristics in Huashan Lake area is put forward, and reasonable suggestions and regulation measures are put forward for the water quality in the lake area.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：X143;X524

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 周馨艷;城市濕地體系構(gòu)建探索研究[D];山東建筑大學(xué);2016年

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本文編號(hào)：1916631