(a) Using the analysis found in Sec XXXXXXXXXX, calculate the depth below the surface where the amplitude of the temperature oscillations has attenuated to 1 percent of the amplitude at the surface....

(a) Using the analysis found in Sec. 12.6.1, calculate the depth below the surface where the amplitude of the temperature oscillations has attenuated to 1 percent of the amplitude at the surface. The wall material is aluminum and the fourstroke cycle engine is operating at 2500 rev/min. For this estimate, consider only the temperature oscillations which have a frequency equal to the engine firing frequency (w = 2xNlnd.

(b) Repeat the calculation for the engine operating at 5000 rev/min.

(c) What is the dependence of the penetration depth on the amplitude of surface temperature fluctuations?