CAJ | 학술논문

京杭运河杭州段河网属于典型的平原河网地区,根据平原河网的水流以及污染特点,利用一维对流扩散方程建立了该地区河网水质模型,采用全隐中心差分格式离散方程,并用追赶法求解.对京杭运河杭州段河网进行水质模拟,并利用2007年上半年常规水质监测断面水质监测数据对模型计算结果进行验证.验证结果表明水质模拟结果较为理想,模型能较为准确的反映河网水质变化趋势,可以用于该地区河网水质改善研究.
경항운하항주단하망속우전형적평원하망지구,근거평원하망적수류이급오염특점,이용일유대류확산방정건립료해지구하망수질모형,채용전은중심차분격식리산방정,병용추간법구해.대경항운하항주단하망진행수질모의,병이용2007년상반년상규수질감측단면수질감측수거대모형계산결과진행험증.험증결과표명수질모의결과교위이상,모형능교위준학적반영하망수질변화추세,가이용우해지구하망수질개선연구.
Hangzhou section of Grand Canal belongs to a typical plain river network area. Based on water flow and pollution characteristics of plain network, a river network water quality model was established by one dimensional advection and diffusion equation which is discreted by a full implicit central difference method and calculated by Thomas algorithm. Water quality simulation of Hangzhou section was done and the model was validated by measured data of the first half year in 2007. Results demonstrated the simulation result was quite satisfactory and the model which predicts the water quality variation trend of river network accurately can be used to study river network water quality improvement of the area.