From: vince@offshore.ai (Vincent Cate) Newsgroups: sci.space.tech Subject: ISP program runs under dosemu on Linux NNTP-Posting-Host: 209.88.68.230 Message-ID: <9186edb5.0309061614.20fbd703@posting.google.com> I have been reading "Space Propulsion Analysis and Design" to understand how to calculate the ISP of a fuel combination. I started working on some code (see http://offshore.ai/vince/isp-c.txt) but the numbers are not making sense yet. I then went to http://www.dosemu.org and installed dosemu on my Linux machine (just unzip 2 tar files with binaries) and was happy to see that the ISP program on Bruce Dunn's site can run under dosemu on Linux. You can get it at http://www.dunnspace.com/isp.htm It is interesting to run. You give it some fuel, oxidizer, pressure, expansion ratios, it will show you ISP, the exhaust composition, temperature, average molecular weight, etc. It will also search for the ideal fuel/oxidizer ratio. Fun stuff. It seems this code and other similar programs are based on a NASA report: Computer program for calculation of complex chemical equilibrium compositions, rocket performance, incident and reflected shocks, and Chapman-Jouguet detonations Gordon, S. (NASA Lewis Research Center, Cleveland, OH, United States); Mcbride, B. J. (NASA Lewis Research Center, Cleveland, OH, United States) NASA Center for AeroSpace Information (CASI) NASA-SP-273 , 1976 There are also 2 other follow on reports: Finite area combustor theoretical rocket performance Gordon, Sanford (Gordon, Sanford, Cleveland, Ohio , United States); Mcbride, Bonnie J. (NASA Lewis Research Cen ter, Cleveland, OH, United States) NASA Center for AeroSpace Information (CASI) NASA-TM-100785 , 1988 Computer program for calculation of complex chemical equilibrium compositions and applications. Supplement 1: Transport properties Gordon, S. (Gordon (Sanford) and Associates, Cleveland, OH, United States); Mcbride, B. (NASA Lewis Research Center, Cleveland, OH, United States); Zeleznik, F. J. (NASA Lewis Research Center) NASA Center for AeroSpace Information (CASI) NASA-TM-86885 , 1984 All 3 of these reports can be purchased from NASA at: http://ntrs.nasa.gov/ -- Vince