Table 2: Maximum coefficient of power and the coefficient of torque at for the two turbines for configuration studied.

Separation gap ratio (X/R)Maximum coefficient of power ( )Maximum coefficient of torque at corresponding to

Turbine 1

3.00.1160.1760.66
4.00.1190.1610.74
5.00.120.1570.76
6.00.1240.1450.86
7.00.1290.1620.79
8.00.1370.1720.80

Turbine 2

3.00.0410.0790.53
4.00.0490.0820.59
5.00.0630.0950.67
6.00.0790.1040.76
7.00.1100.1450.76
8.00.1390.1760.79