Part 1 An ideal gas is to flow isentropically from a large tank where the air is maintained at a temperature and pressure of 59 °F and 117 psia to standard atmospheric discharge conditions in a way to achieve a maximal velocity. Describe in general terms the kind of duct involved and determine the duct exit Mach number and velocity in ft/s if the gas is air. The problem can be solved either using the isentropic relations or this figure. The isentropic relations are more accurate, but difficult to use unless you code them into a computer program. (a) What is the pressure ratio for the flow? (b) is the exit flow subsonic, sonic, or supersonic? (c) What is the exit Mach number? (a) Pent/Po (b) (c) Mexi

Part 1 An ideal gas is to flow isentropically from a large tank where the air is maintained at a temperature and pressure of 59 °F and 117 psia to standard atmospheric discharge conditions in a way to achieve a maximal velocity. Describe in general terms the kind of duct involved and determine the duct exit Mach number and velocity in ft/s if the gas is air. The problem can be solved either using the isentropic relations or this figure. The isentropic relations are more accurate, but difficult to use unless you code them into a computer program. (a) What is the pressure ratio for the flow? (b) is the exit flow subsonic, sonic, or supersonic? (c) What is the exit Mach number? (a) Pent/Po (b) (c) Mexi

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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An ideal gas is to flow isentropically from a large tank where the air is maintained at a temperature and pressure of 59 °F and 76 psia to standard atmospheric discharge conditions in a way to achieve a maximal velocity. Describe in general terms the kind of duct involved and determine the duct exit Mach number and velocity in ft/s if the gas is air. The problem can be solved either using the isentropic relations or this figure. The isentropic relations are more accurate, but difficult to use unless you code them into a computer program. (a) What is the pressure ratio for the flow? (b) Is the exit flow subsonic, sonic, or supersonic? (c) What is the exit Mach number? (a) Pexit/Po= i (b) (c) Mexit =
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