1. Assistant Professor, Institut de Mecanique des Fluides, allee du Prof. Camille Soula, 31400 Toulouse, France (corresponding author).
2. Ph.D. Student, Water Resources Univ., 175 Tay Son, Dong Da Dist, Hanoi, Vietnam.
3. Engineer, ONEMA, allee du Prof. Camille Soula, 31400 Toulouse, France.
4. Assistant Professor, Institut de Mecanique des Fluides, allee du Prof. Camille Soula, 31400 Toulouse, France.
5. Professor, Institut de Mecanique des Fluides, allee du Prof. Camille Soula, 31400 Toulouse, France.