建立管道计算模型? elevation change,水平爬升高度 kitting k factor , elevation change this entry specifies the change is elevation from inlet to outlet. the default rise is zero (i.e. horizontal). the value may be positive (uphill) or negative (downhill), but cannot exceed the total length of the pipe provided in the line length field. fitting k-factor supply the necessary k-factor value if you desire to include a fitting in the pipe unit. the k-factor is defined as the total resistance coefficient for the fitting, including allowances for multiple fittings, valves, and exit losses. this field is not available when line sizing calculation is selected.查看更多