AVBe - AVBP Engine Computation
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Author : Frédéric Ducros , CERFACS - ducros@cerfacs.fr
Objectives :
This project centers around the calculation of the flow around and inside
a model of a 2D engine. The computations are based on the unstructured
flower solver AVBP
of CERFACS. The three following tasks are proposed:
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Simulation of the flow in and around the engine for weak external Mach
numbers (M=0.3), visualization of pressure, density and velocity fields,
influence of some simulation parameters such as Reynolds number, artificial
viscosity, angle of incidence, etc.
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Programming exercice: Develop a Fortran routine able to calculate the mass
flow rate going through the engine. Estimate this mass flow rate for different
angles of incident and compare it with a straightforward theoretical model.
Re-do this exercice for other cruise conditions (higher Mach numbers).
Working plan :
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AVBe.1 : Introduction to the AVBP flow solver, execution of an academic
test case (channel with bump).
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AVBe.2 : Engine calculation, influence of simulation parameters.
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AVBe.3 : Mass flow rate estimation for two different regimes, comparison
with a straightforward model.
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Week
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4
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5
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6
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AVBe.1
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AVBe.2
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AVBe.3
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| Exam |
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Deliverables :
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1. Convergence history, pressure, density and velocity fields in and around
the engine
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2. Fortran code calculating the mass flow rate
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3. Mass flow rate as a function of the incidence angle and of the external
Mach number
Bibliography :
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[1] The AVBP User's Manual, T. Schönfeld, CERFACS, 1999.
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[2] Cours de FORTRAN77/90.
Pedagogical interest :
Introduction to some aeronautical CFD problems, getting familiar with unstructured
data format.
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