(a) Estimate the ratio of the maximum gas velocity in the center of the hollow cone inlet jet to the mean piston speed from the data in Fig. 8-1. (b) Compare this ratio with the ratio of inlet valve...

(a) Estimate the ratio of the maximum gas velocity in the center of the hollow cone inlet jet to the mean piston speed from the data in Fig. 8-1.

(b) Compare this ratio with the ratio of inlet valve pseudo flow velocity determined from Fig. 6-15 to the mean piston speed at the same crank angle. The engine is that of Fig. 1-4.

(c) Are the engine velocity data in (a) consistent with the velocity calculated from the simple piston displacement model of (b)? Explain.