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公开(公告)号：KR100888628B1
公开(公告)日：2009-03-11
申请号：KR1020060110243
申请日：2006-11-09
Applicant: 재단법인서울대학교산학협력재단
IPC: G06Q50/26
Abstract: 본 발명은 유관개념과 추적절차를 결합한 2차원 오염분산계수 관측방법에 관한 것으로, (a) 초기값으로 설정된 임의의 종분산계수와 횡분산계수 및 측정된 상류단의 농도분포가 입력자료로 이용되어 일정한 수학식을 만족하는 하류단의 농도분포1을 산출하고 그 산출된 하류단의 농도분포1과 동일 지점에서의 측정된 하류단의 농도분포 간의 오차1을 산정하는 단계; (b) 상기 단계(a)에서 산정된 오차1보다 산출된 하류단의 농도분포와 동일 지점에서의 측정된 하류단의 농도분포 간의 오차2...오차n을 계속적으로 감소시킬 수 있도록 종분산계수와 횡분산계수를 일정한 방향성을 가지고 반복적으로 조정하여 그에 대응하고 상기 단계(a)의 수학식을 만족하는 하류단의 농도분포2...하류단의 농도분포n을 계속적으로 산출하는 단계, 및 (c) 종분산계수와 횡분산계수를 일정한 방향성을 가지고 조정하여 산출된 하류단의 농도분포n+1과 동일 지점에서의 측정된 하류단의 농도분포 간의 오차n+1이 오차n 보다 역으로 증가하면 계산을 중지하고, 오차가 최소가 되는 순간인 오차n이 산정되도록 하는 종분산계수와 횡분산계수를 관측치로 설정하는 단계를 포함하여, 하천의 오염 확산에 지대한 영향을 미치는 흐름 및 하천의 불규칙성을 포함하는 분산계수를 관측하는 방법을 제시한 것이다.
유관개념, 추적절차, 2차원, 오염분산계수, 횡분산계수, 종분산계수, 오염물-
公开(公告)号：KR100860261B1
公开(公告)日：2008-09-25
申请号：KR1020060110175
申请日：2006-11-08
Applicant: 재단법인서울대학교산학협력재단
Abstract: 본 발명은 하천 오염확산 수치해석에서 순간주입 모의방법에 관한 것으로, 하천에 유입된 오염물질의 확산 거동 수치모의에 있어서, 디락 델타(Dirac delta) 함수로 표현되는 생성항을 포함한 2차원 이송-분산 방정식에 유한요소법을 적용하여 2차원 수치모형을 구성하되 적용 영역내에서 상기 이송-분산 방정식에 대해 가중찬차법을 적용하는 단계(S10)와; 상기 단계(S10)를 거친 결과에 Green정리를 적용하여 확산항에 포함된 2차 도함수를 1차 도함수로 전환하는 단계(S11)와; 상기 단계(S11)를 거친 결과에서 수심 평균한 농도(
C )를 선형 형상함수로 보간하는 단계(S12) 및 상기 단계(S12)를 거친 결과에서 시간 미분항을 처리하기 위하여
t 에서
t +Δ
t 의 이산시간동안 수치적분하는 유한적분해법을 사용하면서 평균값정리를 이용하여 시간에 대하여 적분하는 단계(S13)로 구성되어 생성항으로 주입조건을 묘사하고 유한요소법에 의해 수치모형을 구성함으로써, 2차원 순간 점오염원에 대해서 효율적이고 보다 정확한 순간주입 모의를 수행할 수 있는 효과가 있다.-
公开(公告)号：KR1020080042194A
公开(公告)日：2008-05-15
申请号：KR1020060110243
申请日：2006-11-09
Applicant: 재단법인서울대학교산학협력재단
IPC: G06Q50/26
CPC classification number: G06Q50/26
Abstract: A 2D(Dimensional) pollution dispersion coefficient observation method combining a stream-tube concept and a routing procedure is provided to observe a dispersion coefficient including a flow/irregularity of a river by estimating a concentration distribution of a downstream end based on the concentration distribution of an upstream end, and comparing the estimated concentration distribution with the measured concentration distribution. Vertical and horizontal dispersion coefficients are set, and a concentration distribution of a downstream end is calculated by using the concentration distribution of an upstream end as input data. The vertical and horizontal dispersion coefficients are adjusted to match the estimated concentration distribution of the downstream end with the concentration distribution measured in the downstream end. The optimum vertical and horizontal dispersion coefficients matching the estimated concentration distribution with the measured concentration distribution are set as an observed vale.
Abstract translation: 提供了一种组合流管概念和布线程序的二维（尺寸）污染分散系数观测方法，通过基于浓度分布的浓度分布估计下游端的浓度分布来观察包括河流流量/不规则性的色散系数 上游端，并将估计的浓度分布与测量的浓度分布进行比较。 设置垂直和水平色散系数，并通过使用上游端的浓度分布作为输入数据来计算下游端的浓度分布。 调整垂直和水平色散系数以将下游端的估计浓度分布与在下游端测量的浓度分布相匹配。 将与估计浓度分布匹配的最佳垂直和水平色散系数与测量的浓度分布设置为观察值。
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公开(公告)号：KR100829290B1
公开(公告)日：2008-05-14
申请号：KR1020060125806
申请日：2006-12-11
Applicant: 재단법인서울대학교산학협력재단
IPC: B05B17/08
Abstract: An underwater discharge nozzle is provided to maximize the dilution efficiency of sewage by increasing the suction amount of peripheral water by increasing the flow velocity at a crossing part as an inlet port and a discharge port get narrower from an inlet end portion and a discharge end portion toward the center of the underwater discharge nozzle. An underwater discharge nozzle used for a discharge system for discharging sewage under the water is composed of fitting units(30) installed on an underwater perforated dispersion pipe at regular intervals and combined with a vertical pipe; an inlet port(40) for passing sewage flowing from the fitting units; a discharge port(50) connected to the inlet port to discharge the sewage flowing from the inlet port; and a suction port(60) installed at the spot where the inlet port and the discharge port join together, at right angle to the flow of the sewage, in order to suck the water.
Abstract translation: 提供了一种水下排放喷嘴，用于通过增加作为入口端口和排出口的交叉部分处的流速而增加外围水的吸入量，使得污水的稀释效率从入口端部和排出端部变窄 朝向水下排放喷嘴的中心。 用于排放水下污水的排放系统的水下排放喷嘴由安装在水下穿孔分散管上的装配单元（30）组成，并与垂直管组合; 用于使从装配单元流出的污水通过的入口（40）; 连接到所述入口的排出口（50），以排出从所述入口流出的污水; 以及吸入口（60），其安装在入口和排出口连接在一起的位置处，与污水的流动成直角，以便吸水。
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5.发明授权
公开(公告)号：KR100882844B1
公开(公告)日：2009-02-10
申请号：KR1020070126318
申请日：2007-12-06
Applicant: 재단법인서울대학교산학협력재단
IPC: G06F17/10
CPC classification number: G06F17/10 , G01N2015/0023 , G06Q50/26
Abstract: A method for analyzing movement of contaminant by calculating a horizontal distribution coefficient combining flow rate distribution of a secondary flow of a river is provided to quantitatively understand horizontal distribution effect of the secondary flow by representing magnitude of the secondary flow changed according to a flow direction in a theoretical formula and offering a simple horizontal distribution coefficient formula including distribution effect of the secondary flow to the horizontal distribution coefficient. River information includes a flow rate, depth, a winding radius, and a vertical distribution coefficient of an analyzed river. A non-dimensional horizontal distribution coefficient is found by assuming a perpendicular distribution of a horizontal flow rate as a linear type and using a horizontal distribution coefficient formula by a shear flow.
Abstract translation: 提供了一种通过计算组合河流次流的流量分布的水平分布系数来分析污染物的运动的方法，以通过表示根据流动方向改变的二次流量的大小来定量地了解二次流的水平分布效应 一个理论公式，提供一个简单的水平分布系数公式，其中包括二次流对水平分布系数的分布效应。 河流信息包括分析河流的流量，深度，绕组半径和垂直分布系数。 通过假设水平流量的垂直分布为线性类型并使用水平分布系数公式通过剪切流量来发现无量纲水平分布系数。
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Patent Agency Ranking
公开(公告)号：KR1020080041933A
公开(公告)日：2008-05-14
申请号：KR1020060110175
申请日：2006-11-08
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: G06F17/5018 , G06F17/11 , G06F2217/16 , G06Q50/26
Abstract: A method for simulating instantaneous injection in numerical analysis of pollutant diffusion in a river is provided to perform more efficient and definite simulation of the instantaneous injection by describing injection conditions with generation terms using temporal & spatial delta functions and constructing a numerical model based on an FEM(Finite Element Method). A method for simulating instantaneous injection includes the following several steps. An FEM is applied to a two dimensional advection-dispersion equation for constructing a two dimensional numerical model, and a weighted residual method is applied to the advection-dispersion equation in an applied area. The Green's theorem is applied to the result of the prior step, and the second derivative included in an extended term is converted into the first derivative. Depth averaged concentration is interpolated with a linear shape function. Integral calculus is performed with respect to time by using an average value theorem while using a finite integration method which performs integral calculus for a discrete time in order to process a temporal differential term.
Abstract translation: 提供了一种用于模拟河流中污染物扩散数值分析中瞬时注入的方法，通过使用时空三角函数描述注入条件和生成项来构建瞬时注入的更有效和明确的模拟，并构建基于有限元法的数值模型 （有限元法）。 用于模拟瞬时喷射的方法包括以下几个步骤。 将FEM应用于构建二维数值模型的二维平流 - 色散方程，并将加权残差法应用于应用区域中的平流 - 色散方程。 将绿色定理应用于先前步骤的结果，将扩展项中包含的二阶导数转换为一阶导数。 深度平均浓度用线性函数进行内插。 通过使用平均值定理，使用对离散时间执行积分微积分的有限积分方法来进行时间微分项的积分微积分。
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公开(公告)号：KR1020090059451A
公开(公告)日：2009-06-11
申请号：KR1020070126317
申请日：2007-12-06
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: E02B1/02 , G01N33/18 , G06Q50/265 , G06F17/10
Abstract: A method for analyzing the behavior of pollutant through the calculation of a transverse diffusion coefficient utilizing the basic hydraulic information of a river is provided to be applied to various geographical conditions and hydraulic conditions by utilizing the universal transverse diffusion coefficient formula with only the basic hydraulic amount of the river. River information is examined and stored. A transverse diffusion coefficient is induced by arranging only dimensionless factors which influences the transverse mixing in a natural river. The hydraulic amount and transverse diffusion coefficient data of domestic/international rivers. Through the regression analysis, a mathematical formula is derived from the transverse diffusion coefficient. An estimate value of the transverse diffusion coefficient is obtained. The numerical model is constructed.
Abstract translation: 通过利用河流的基本水文信息计算横向扩散系数分析污染物的行为的方法，适用于各种地理条件和水力条件，通过利用通用横向扩散系数公式，只用基本水量 的河。 检查并存储河流信息。 横向扩散系数是通过排列影响天然河流中横向混合的无量纲因子引起的。 国内/国际河流的水量和横向扩散系数数据。 通过回归分析，从横向扩散系数得出数学公式。 获得横向扩散系数的估计值。 建立数值模型。
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公开(公告)号：KR1020080052718A
公开(公告)日：2008-06-12
申请号：KR1020060124235
申请日：2006-12-08
Applicant: 재단법인서울대학교산학협력재단
Abstract: A hybrid simulation method of an ocean outfall system for the near and far fields is provided to offer a hybrid model of the near and far fields to analyze simultaneously an initial mixing procedure, a transferring and a distributing procedure of the underwater discharge sewage. Various kinds of discharge conditions about the underwater discharge sewage of an ocean outfall system are inputted. The speed and transfer time of tidal currents are calculated by inputting the discharge conditions into a hydrodynamics model. A shape of a discharge hole for underwater discharge is judged. In a case that an individual buoyant jet must be interpreted because of an interval of a distribution tube which is sufficiently big as the shape of the discharge hole, the data is simulated by applying a jet integral model. In the case that a line plume is able to be supposed by realizing the combination between buoyant jets at a short section of the discharge hole, the data is simulated by applying a property length model. The data simulated by the jet integral model and the property length model is simulated by applying the data to a particle tracing model. If the simulation of the particle tracing model is completed, a conversion process of a concentration coordinate system is performed, and a mixing procedure is interpreted.
Abstract translation: 提供近场和远场海洋排污系统的混合模拟方法，提供近场和远场混合模型，同时分析水下排放污水的初始混合程序，转移和分配程序。 输入关于海洋排放系统的水下排放污水的各种排放条件。 通过将排放条件输入到流体力学模型中来计算潮汐流的速度和转移时间。 判断用于水下排放的排出孔的形状。 在由于排放孔的形状足够大的分配管的间隔而必须解释单独的浮力的情况下，通过应用喷射积分模型来模拟数据。 在通过在排气孔的短截面处实现浮力喷嘴之间的组合能够假设线羽流的情况下，通过应用属性长度模型来模拟数据。 通过将数据应用于粒子跟踪模型，模拟由流体积分模型和属性长度模型模拟的数据。 如果粒子跟踪模型的模拟完成，则执行浓度坐标系的转换过程，并且对混合过程进行解释。
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公开(公告)号：KR1020090081891A
公开(公告)日：2009-07-29
申请号：KR1020080008050
申请日：2008-01-25
Applicant: 재단법인서울대학교산학협력재단
Abstract: An abnormal brine wedge experiment device is provided to maintain the concentration of salty water and the tide level change of the sea area to be constant. An abnormal brine wedge experiment device comprises a salty water tub(10) where the salty water of a ceratin concentration is filled and is made of a transparent material; a variable slope waterway(20) for the supply of fresh water of the rectangular cross section which is connected to the upper side of the salty water tub and has a certain slope angle and length; a fresh water supply water tank(30) which supplies fresh water of a certain amount to the variable slope waterway; a salty water supply water tank(40) which is connected to the salty water tub to generate the salty water of a certain concentration proportionally to the fresh water amount; a mobile ware(50) which is installed inside the salty water tub to generates the tidal action; and a computer(60) of the rectangular cross section which controls the supply quantity of fresh water and salty water and the tidal action.
Abstract translation: 提供了一种异常盐水楔实验装置，以保持咸水浓度和海域潮汐水位变化不变。 异常盐水楔实验装置包括一个咸水桶（10），其中填充有一个陶瓷浓度的咸水，并由透明材料制成; 用于供应长方形横截面的淡水的可变斜水道（20），其连接到咸水桶的上侧并具有一定的倾斜角度和长度; 一个供水水箱（30），其向可变斜坡水道供应一定量的淡水; 一个咸水供应水箱（40），其连接到咸水桶以产生与淡水量成比例的一定浓度的咸水; 安装在咸水桶内的移动器具（50）以产生潮汐作用; 以及控制淡水和咸水的供给量以及潮汐动作的矩形截面的计算机（60）。
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公开(公告)号：KR100899003B1
公开(公告)日：2009-05-21
申请号：KR1020080005522
申请日：2008-01-18
Applicant: 재단법인서울대학교산학협력재단
Abstract: 본 발명은 하천의 주흐름 유속분포를 결합한 종분산계수의 산정을 통해 오염물의 거동을 해석하는 방법에 관한 것으로, (a) 해석 대상 하천의 유속과 수심, 하폭 및 횡분산계수를 포함하는 하천정보를 조사·저장하는 단계와; (b) 하천의 특성에 따라 다변화하는 주흐름의 횡분포를 모사할 수 있고, 현장유속자료를 통해 검증되는 주흐름의 횡분포식을 선택하는 단계와; (c) 상기 단계(b)에서 선택된 주흐름의 횡분포식과 종분산계수를 산정하기 위한 삼중적분식을 이용하여 종분산계수를 구하는 단계 및 (d) 상기 단계(a)에서 저장된 하천의 유속과 상기 단계(c)에서 구한 종분산계수를 입력자료로 하여 하천 내에서 오염물의 농도인 수치해를 수치모형을 구축하여 구하는 단계로 구성됨으로써, 주흐름의 횡분포가 종분산에 미치는 영향을 정량적으로 파악할 수 있을 뿐만 아니라, 1차원 오염확산 해석시에 중요한 매개변수인 종분산계수를 보다 정확히 산정함으로써 오염물의 거동 해석에 유용하게 활용될 수 있어, 취수장 운영·수질 예경보 시스템 개발 등에 기초적인 정보를 제공하는 효과가 있다.
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