Application of an iterative network analogue computer and the theory of flame propagation

✍ Scribed by D.B. Spalding; D. Vortmeyer

• Publisher: Elsevier Science
• Year: 1962
• Tongue: English
• Weight: 370 KB
• Volume: 6
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(62)90064-0

✦ Synopsis

The present paper serves three purposes: (1) To introduce a relatzvely new network computer design that is capable o I solving a set o] twenty algebraic equations expressed by the dimensionless relation ri:~-J+ L h'-t ~ohere ~j and d~. are constants depending on the nature o] the problem, and 9 may be an arbitrary linear or non-linear lunction of r. With those quantities unknown r~-profiles art' obtained by the computer as a lunction o I the parameter L. (2) It will be demonstrated that this computer can be used /or the evaluation o I flame speeds lrom the laminar flame equation. The accuracy o~ the computed eigenvaIues lies wzthin +_2 per cent as compared with numerical solutions of this equation. (3) Alter the accuracy o I the computer has been established it is used to determine the validity of the Centroid Rule /or condensed-phase propellant combustion, since the application o I this rule previously had been questioned. It appears that within the limits o I accuracy o I the computer the Centroid Rule must be regarded as valid.