Let the vortex/sink flow of the equations

= mK ln(r)= mK ln(r) and = mln(r)+K= mln(r)+K

simulate a tornado as shown in the figure below. Suppose that the circulation about the tornado is = 8500 m²/s and that the pressure at r = 40 m is 1800 Pa less than the far-field pressure. Assume inviscid flow at sea-level density ( = 1.225 kg/m³). Take sea-level pressure as 101 kPa.

Estimate the pressure at r = 15 m.

Required information Let the vortex/sink flow of the equations =mKln(r) and =mln(r)+K simulate a tornado as shown in the figure below. Suppose that the circulation about the tornado is =8500m2/s and that the pressure at r=40m is 1800Pa less than the far-field pressure. Assume inviscid flow at sea-level density (=1.225 kg/m3 ). Take sea-level pressure as 101kPa. Estimate the pressure at r=15m. The pressure is kPa