In this CENG 402 project, we modified start301 to include programs that are able to calculate the density, Reynolds number and Peclet number for ideal gases.  All three of these quantities are useful in applications that involve heat and mass transfer.  The program 'rhocalc' calculates the density of an ideal gas for a specified temperature and pressure of the system.  In order to calculate the Reynolds number, a velocity and length has to be specified in addition to the temperature and pressure in the program 'recalc'.  The Peclet number is found by using the same parameters as in the Reynolds number through the matlab program 'pecalc'.

Future Work: Our project is designed primarily to evaluate parameters keeping in mind that the gases under consideration behave ideally.  In future, students can modify the programs to include non-ideal conditions such as high pressures and low temperatures.  Also, our programs have been written for pressure inputs in units of atmospheres.  We would like to suggest that students can design a program for start301 that converts pressure from the inputted units to the desired units similar to the program 'at(T)'. 

References -

Bird, R. Byron, W. Stewart, and E. Lightfoot.  Transport Phenomena.  Second Edition.  New York :  John Wiley and Sons, 2002.

Burmeister, Louis C., Convective Heat Transfer.  Second Edition.  New York :  John Wiley and Sons, 1993.

Bejan, Adrian.  Heat Transfer.  New York : John Wiley and Sons, 1993.

McQuarrie, Donald A., & Simon, John D.  Physical Chemistry A Molecular Approach.  Sausalito , CA :  University Science Books, 1997.