ASE 120L - Flow Variables and Sources of Error

ASE 120L - Flow Variables and Sources of Error - ASE 120K...

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ASE 120K Lecture Notes The University of Texas at Austin ASE 120K Low Speed Aerodynamics Laboratory FLOW VARIABLES & SOURCES of ERROR Prof. Charles E. Tinney WRW-301A 512.471.4147 cetinney@mail.utexas.edu Instructor:
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ASE 120K Lecture Notes Common Variables of Interest in Fluid Mechanics Velocity, Pressure, density, Temperature: Velocity: a vector quantity comprising three variables, each a function of space and time Density: Recall the ideal (perfect) gas law For incompressible flows: , and so:
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ASE 120K Lecture Notes Temperature: consider the energy equation along a streamline (a stagnation streamline where the flow is forced to come to rest isentropically) if we assume a perfect gas: then: specific stagnation enthalpy Total Temperature
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ASE 120K Lecture Notes so that: where: is the ratio of specific heats, so that: i.e. temperature changes are negligible at low Mach numbers NOTE: temperature effects are only important for:
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This note was uploaded on 09/18/2011 for the course ASE 120L taught by Professor Staff during the Fall '09 term at Oklahoma State.

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ASE 120L - Flow Variables and Sources of Error - ASE 120K...

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