A hot wire anemometer is a device to measure the velocity of a flow of air. It consists of a thin, cylindrical wire in cross flow. The wire with electrical resistance R=1 Ohm is held at a constant, uniform temperature, Ts, of 30 °C via a controller. The wire diameter, d, is 0.2 mm, the wire is 5 mm long. The air temperature, T_infinity is 10 °C.
1. Plot the fluid velocity as a function of the voltage, V across the wire.
2. What is the fluid velocity if the voltage across the wire is 234.2 mV?