Stefan Billig

Properties for Cp between airProp and airProp2 begin to vary from the published values in WC Reynolds, "Thermodynamic Properties in SI" Mr. Billig cuts these off at 1200 K (although this may not be his fault, as the reference in airProp appears to be a derivative work). The problem appears because Cp deviates from Reynold's source which is considered fairly authoratative (I have not checked the rest of the properties yet) throwing into doubt the higher temp (AF Mills "Heat Transfer" has a Cp for air at 2000 K that is significantly lower.) Mills is consistant with properties in the Engineering Toolbox (http://www.engineeringtoolbox.com/dry-air-properties-d_973.html) which has no obvious reference. It would be useful if someone at a university might double check the higher temperature values in an engineering library.

please i need help on a project that i'm working on. I want to write a simple program using matlab to load the coordinate and heights from either excel or notepad for it to plot the coordinates and contour using the heights.also the legend must also appear.please Isimply dont know how to go about it or wher to start from .I urgently need your help.hoping to hear from you!