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[Energy industry] PQ DL : 0: 电力系统潮流计算程序，使用稀疏矩阵，降低存储容量，加快迭代的速度。-Power flow calculation procedure, the use of sparse matrices to reduce storage capacity, speed up the speed of iteration.
Date : 2026-01-01 Size : 2.22mb User : 申定辉
[Energy industry] DIEDAI DL : 0: 风机动量叶素理论设计中迭代计算风机叶片弦长与扭角-Fan momentum blade element theory design iteration fan blade chord and twist angle
Date : 2026-01-01 Size : 1kb User : 吴璇
[Energy industry] LinWPSO DL : 0: 线性递减权重粒子群优化算法是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。 -Linear decreasing weight particle swarm optimization starting from random solutions to find the optimal solution by iteration, it is also the fitness to evaluate the quality of the solution, but it is much simpler than the genetic algorithm rules, it is not a genetic algorithm " cross" (Crossover) and " variation" (Mutation) operation, which follow the current search for the optimal value to find the global optimum. The advantage of this algorithm is its ease of implementation, high accuracy, fast convergence and attracted the attention of the academic community, and demonstrated its superiority in solving practical problems.
Date : 2026-01-01 Size : 1kb User : 苑南
[Energy industry] WaveNumber DL : 0: ! This FUNCTION solves the finite depth dispersion relationship: ! ! k*tanh(k*h)=(Omega^2)/g ! ! for k, the wavenumber (WaveNumber) given the frequency, Omega, ! gravitational constant, g, and water depth, h, as inputs. A ! high order initial guess is used in conjunction with a quadratic ! Newton s method for the solution with seven significant digits ! accuracy using only one iteration pass. The method is due to ! Professor J.N. Newman of M.I.T. as found in routine EIGVAL of ! the SWIM-MOTION-LINES (SML) software package in source file ! Solve.f of the SWIM module.- ! This FUNCTION solves the finite depth dispersion relationship: ! ! k*tanh(k*h)=(Omega^2)/g ! ! for k, the wavenumber (WaveNumber) given the frequency, Omega, ! gravitational constant, g, and water depth, h, as inputs. A ! high order initial guess is used in conjunction with a quadratic ! Newton s method for the solution with seven significant digits ! accuracy using only one iteration pass. The method is due to ! Professor J.N. Newman of M.I.T. as found in routine EIGVAL of ! the SWIM-MOTION-LINES (SML) software package in source file ! Solve.f of the SWIM module.
Date : 2026-01-01 Size : 1kb User : soheil
[Energy industry] Steam-properties-calculation DL : 0: 本软件根据“水和蒸汽热力学性质的工业公式1997”（IAPWS-IF97）编写，计算结果与《水和蒸汽的性质》——W.瓦格纳著一书中附表基本一致。软件正函数(已知压力温度求其它值)的主体部分由中山大学张冰剑完成，中国石化节能技术服务中心叶剑云在此基础上增加了闪蒸、汽轮机计算以及反函数迭代计算部分。 -The software according to the water and steam thermodynamic properties of 1997 industrial formula (iapws-if97), the calculation results with the properties of water and steam- w. Wagner the book table. Software is function (pressure and temperature and other known value) completed by bing-jian zhang of zhongshan university, in the main body of China petrochemical Ye Jianyun energy-saving technical service center on the basis of increased the flash, the calculation of turbine, and the proportion of the inverse function iteration calculation.
Date : 2026-01-01 Size : 103kb User : 王善城
[Energy industry] 新建文件夹 DL : 0: Perform two phase equilibrium calculation with successive substitution method (SSM) for the below five-component system at 390K and selected pressure points (4.42, 5, 5.55 MPa) to determine vapor phase fraction, vapor/liquid phase composition and iteration numbers. Choose either PR or SRK Equation of State (EOS) as the thermodynamic model. C2 C3 nC4 nC5 nC6 zi 0.39842 0.29313 0.20006 0.07143 0.03696
Date : 2026-01-01 Size : 5kb User : Shuailiu
[Energy industry] 新建文件夹 DL : 0: 该方法避免了传统潮流的逐次迭代的繁琐过程，运用直接求解矩阵，直接进行潮流计算(his method avoids the tedious process of successive iteration of the traditional trend, and applies the direct solution matrix directly to the current calculation)
Date : 2026-01-01 Size : 23kb User : 洛叶飘雪