projection method 真的比piso快吗？
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@李东岳 ，log文件太大了，我直接贴出最后运行的部分，这个是piso的:
Courant Number mean: 0.0727094 max: 0.318223 smoothSolver: Solving for Ux, Initial residual = 0.00233765, Final residual = 9.36774e-07, No Iterations 2 smoothSolver: Solving for Uy, Initial residual = 0.00221123, Final residual = 1.10021e-06, No Iterations 2 GAMG: Solving for p, Initial residual = 0.02495, Final residual = 0.00191592, No Iterations 16 time step continuity errors : sum local = 1.98408e-07, global = -2.5675e-08, cumulative = -5.27605e-07 GAMG: Solving for p, Initial residual = 0.0114244, Final residual = 0.000956831, No Iterations 6 time step continuity errors : sum local = 8.06665e-08, global = -1.4887e-08, cumulative = -5.42492e-07 GAMG: Solving for p, Initial residual = 0.000984314, Final residual = 9.17457e-05, No Iterations 12 time step continuity errors : sum local = 7.76255e-09, global = -1.02027e-09, cumulative = -5.43512e-07 GAMG: Solving for p, Initial residual = 0.000126896, Final residual = 8.14763e-07, No Iterations 9 time step continuity errors : sum local = 6.93864e-11, global = 1.58971e-11, cumulative = -5.43496e-07 smoothSolver: Solving for k, Initial residual = 0.00183417, Final residual = 6.75215e-07, No Iterations 2 bounding k, min: 0 max: 0.61915 average: 0.0500166 ExecutionTime = 880.24 s ClockTime = 907 s这个是rk4projectionfoam：
Courant Number mean: 0.0691815 max: 0.254882 Time = 0.1 GAMG: Solving for p, Initial residual = 0.197725, Final residual = 0.014632, No Iterations 4 GAMG: Solving for p, Initial residual = 0.0293635, Final residual = 0.00242183, No Iterations 8 GAMG: Solving for p, Initial residual = 0.215681, Final residual = 0.0184253, No Iterations 3 GAMG: Solving for p, Initial residual = 0.0182562, Final residual = 0.00127419, No Iterations 8 smoothSolver: Solving for k, Initial residual = 0.00192867, Final residual = 7.26218e-07, No Iterations 2 bounding k, min: 0 max: 1.08318 average: 0.0514211 time step continuity errors : sum local = 1.74224e-05, global = -1.07657e-07, cumulative = -0.0014665 ExecutionTime = 621.75 s ClockTime = 640 s[0_1506409559511_rk4projectionfoam.rar](正在上传 100%)
