AVBv  AVBP Valve Computation

Author : Frédéric Ducros, CERFACS  ducros@cerfacs.fr
Objectives :
This project centers around the calculation of the flow around a isolated
valve. The computations are based on the unstructured flower solver AVBP
of CERFACS. For two differents meshes and regimes the three following tasks
are proposed:

Simulation of the flow around the valve, visualization of pressure and
velocity fields, influence of some simulation parameters such as Reynolds
number, artificial viscosity, boundary conditions, etc.

Programming exercice: Develop a Fortran routine able to produce the repartition
of pressure and total energy at the wall and for chosen axis in the proposed
mesh. Use this routine to evaluate the pressure drop through the valve.
For two fixed points produce the pressure drop as a function of time in
case of unsteady simulation.

Pressure drop analysis: For three different valve positions produce a mean
pressure drop and compare it with results available in literature.
Working plan :

AVBv.1 : Introduction to the AVBP flow solver, execution of an academic
test case (channel with bump).

AVBv.2 : Valve calculation, influence of simulation parameters.

AVBv.3 : Pressure drop estimation.

AVBv.4 : Pressure drop analysis.
Week

1

2

3

4

5

6

AVBv.1

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AVBv.2


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AVBv.3



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AVBv.4





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Exam 





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Deliverables :

1. Velocity and pressure fields.

2. Pressure drop estimation: Fortran programming and validation.

3. Pressure drop estimation for different valve positions, compared with
literature.
Bibliography :

[1] The AVBP User's Manual, T. Schönfeld, CERFACS, 1999.

[2] Cours de FORTRAN77/90.

[3] Memento des pertes de charge.
Pedagogical interest :
Introduction to some CFD problems of internal flows, getting familiar with
unstructured data format.
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