| The system of water supply networks is very complicated. More and more people have already realized its importance,when users have more strict criterion to the quality and quantity of water,the gradually spreading of the scale of water supply networks and the progress of computer technology. From the distribution of initial flow,the optimal calculation of pipe networks and the drawing of the figure on equal hydraulic pressure line,they are connected with each other,if anyone of them is ameliorated,it will improve the total effect.This thesis will design a software including the three parts,by computer,and make the total effect best,at the same time the data inputed should be fewer.In initial flow distribution,make use of method of the minimum square summation,taking into account the length of pipe. Using the method of the minimum square summation,counting larger index of pipe length,distribute initiatory flow of pipe networks .It can better considerate the pipe lenth's influence to flow,and it's results are fitter for the theories of flow distribution .It is the best one in all optimal methods and propitious to finish the calculation by computer. In the optimal calculation of pipe networks,using genetic algorithms to optimize,by natural number coding. Then this thesis simply discuss the selection of initial genetic colony and the reasonable value of penalty function multiplier. It improve the constringency speed of genetic algorithms. Then using MATLAB to draw the figure of water supply networks,including the solid figure,the plane dyeing figure and labeled figure. So the method can make the figure intuitionistic and better analysis. The last,the thesis expound detailedly the juncture MATLAB and VC++6.0 .During designing the software,using the virtue of MATLAB and VC++6.0,make the effect best and validate the feasibility by an example. The last,the thesis put forward the shortage to the software and have a few own views to betterment later.
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