re low-speed air flow for which compressibility r lected. During operation, the pressures p, and P2 ed, as well as upstream temperature, T1. Find ow rate in terms of Ap = p2 - pi and T1, the gas const and device diameters D, and D2. Assume the flov less. Will the actual flow be more or less than this

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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6.70 A flow nozzle is a device for measuring the flow
rate in a pipe. This particular nozzle is to be used to
measure low-speed air flow for which compressibility may
be neglected. During operation, the pressures p, and P2 are
recorded, as well as upstream temperature, T1. Find the
mass flow rate in terms of Ap = p2 - pi and T1, the gas constant
for air, and device diameters D, and D2. Assume the flow is
frictionless. Will the actual flow be more or less than this pre-
dicted flow? Why?
Flow
D2
D1
P6.70
Transcribed Image Text:6.70 A flow nozzle is a device for measuring the flow rate in a pipe. This particular nozzle is to be used to measure low-speed air flow for which compressibility may be neglected. During operation, the pressures p, and P2 are recorded, as well as upstream temperature, T1. Find the mass flow rate in terms of Ap = p2 - pi and T1, the gas constant for air, and device diameters D, and D2. Assume the flow is frictionless. Will the actual flow be more or less than this pre- dicted flow? Why? Flow D2 D1 P6.70
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