Wall Static Pressure Variation in Sudden Expansion in Cylindrical Ducts with Supersonic Flow: A Fuzzy Logic Approach

Author

Pandey, K.M.

Author_Institution

Dept. of Mech. Eng., N.I.T Silchar, Silchar, India

fYear

2010

fDate

9-11 Feb. 2010

Firstpage

237

Lastpage

242

Abstract

In this paper the analysis of wall static pressure variation has been done with fuzzy logic approach to have smooth flow in the duct. Here there are three area ratio chosen for the enlarged duct, 2.89, 6.00 and 10.00. The primary pressure ratio is taken as 2.65 and cavity aspect ratio is taken as 1 and 2. The study is analysed for length to diameter ratio of 1, 2, 4 and 6. The nozzles used are De Laval type and with a Mach number of 1.74 and 2.23 and conical nozzles having Mach numbers of 1.58 and 2.06. The analysis based on fuzzy logic theory indicates that the length to diameter ratio of 1 is sufficient for smooth flow development if only the basis of wall static pressure variations is considered.

Keywords

Mach number; fuzzy logic; fuzzy set theory; nozzles; pipe flow; pressure; supersonic flow; De Laval nozzle; Mach number; cavity aspect ratio; conical nozzle; cylindrical duct; fuzzy logic; fuzzy set; pressure ratio; smooth flow; supersonic flow; wall static pressure variation; Biological neural networks; Computer networks; Concurrent computing; Ducts; Fuzzy logic; Fuzzy set theory; Genetic algorithms; Humans; Optimization methods; Uncertainty; Mach number; and De Laval nozzle; area ratio; pressure ratio; wall static pressure;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Computing (ICMLC), 2010 Second International Conference on

Conference_Location

Bangalore

Print_ISBN

978-1-4244-6006-9

Electronic_ISBN

978-1-4244-6007-6

Type

conf

DOI

10.1109/ICMLC.2010.74

Filename

5460734