Figure 4
Temperature difference ΔT from wire surface with radius r wire = 0.05 mm to radial position R for different power densities P* [W/m]. The graphs show the temperature differences from the wire surface at position rwire to the position at radius R (cylinder axis defines R = 0). The starting point at rwire (0.05 mm) is so close to R = 0 that it coincides with R = 0 in the drawing.