[T] update reference results of testcases.

...avityAndDispersionHalf_ts_1100_t_5000.000000_expected.vtu

...rageAndGravityAndDispersionHalf_ts_1200_t_7500.000000.vtu

...avityAndDispersionHalf_ts_1200_t_7500.000000_expected.vtu

...ageAndGravityAndDispersionHalf_ts_1300_t_10000.000000.vtu

...vityAndDispersionHalf_ts_1300_t_10000.000000_expected.vtu

...ageAndGravityAndDispersionHalf_ts_1400_t_12500.000000.vtu

...vityAndDispersionHalf_ts_1400_t_12500.000000_expected.vtu

...ageAndGravityAndDispersionHalf_ts_1500_t_15000.000000.vtu

...vityAndDispersionHalf_ts_1500_t_15000.000000_expected.vtu