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Open Source Aerodynamic Optimization and Simulation

 
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Mustafa Umut Sarac
Footcatch-Routinier


Anmeldungsdatum: 19.09.2018
Beiträge: 177
Wohnort: Istanbul - Turkey

BeitragVerfasst am: 03.05.2019, 00:41    Titel: Open Source Aerodynamic Optimization and Simulation Antworten mit Zitat

I am in to boat design research for long years and I learned French Navy and French Commercial Ship manufacturers were overdosed to pay license fee for each computer and switched to open source free softwares.

I learned that they use openFOAM software for computational fluid dynamics.

And I learned openFOAM is the most used open source free software aero optimization simulation software.

I found 3 papers :

First paper was telling commercial aerodynamic simulation and adjoint optimization , paper is a profit for us to showing how wild designs can be ordered from preadjoint optimization coding.

https://drive.google.com/file/d/11mDowi9x52xcDREmYfO6zQbNT5GIbWva/view?usp=sharing

paper is ABOVE.

AALBORG UNIVERSITY ESBJERG
Race Car Aerodynamic Design and Optimization
via CFD and the Discrete Adjoint Method
M.Sc. Thesis
Process Engineering and Combustion Technology
PECT10-4-F18
7/6-18

IF YOU READ ABOVE PAPER SERIOUSLY , YOU CAN FIND HOW OPTIMIZATION CAN BE MANAGED TO GET WILD FREE DESIGNS

Second paper is showing how to do adjoint optimization without cad but open source openFOAM software.

https://drive.google.com/file/d/1fvURuRSrqBIbJLoEXlyv5zET7uzJIc1m/view?usp=sharing

Discrete Adjoint Optimization with OpenFOAM
Von der Fakultät für Mathematik, Informatik und Naturwissenschaften der
RWTH Aachen University zur Erlangung des akademischen Grades eines Doktors
der Naturwissenschaften genehmigte Dissertation
vorgelegt von
Dipl.-Ing. Markus Towara
aus Köln
Betreuer: Univ.-Prof. Dr. rer. nat. Uwe Naumann
Univ.-Prof. Dr.-Ing. Wolfgang Schröder
Tag der mündlichen Prüfung: 07. Dezember 2018


Third paper relates only to aerodynamic simulation and post process the airflow to streamline visuals.
https://drive.google.com/file/d/1SqUd2l-Ti50sf71iUcEaOVp46VJN7PDc/view?usp=sharing

Journal of Traffic and Transportation Engineering 6 (2018) 155-163
doi: 10.17265/2328-2142/2018.04.001
Aerodynamic Simulation of a 2017 F1 Car with
Open-Source CFD Code
Umberto Ravelli and Marco Savini
Department of Engineering and Applied Sciences, University of Bergamo, Dalmine 24044, Italy
Abstract: Open-wheeled race car aerodynamics is unquestionably challenging insofar as it involves many physical phenomena, such
as slender and blunt body aerodynamics, ground effect, vortex management and interaction between different sophisticated aero
devices. In the current work, a 2017 F1 car aerodynamics has been investigated from a numerical point of view by using an
open-source code. The vehicle project was developed by PERRINN (Copyright©2011—Present PERRINN), an engineering
community founded by Nicolas Perrin in 2011. The racing car performance is quantitatively evaluated in terms of drag, downforce,
efficiency and front balance. The goals of the present CFD (computational fluid dynamics)-based research are the following:
analyzing the capabilities of the open-source software OpenFOAM in dealing with complex meshes and external aerodynamics
calculation, and developing a reliable workflow from CAD (computer aided design) model to the post-processing of the results, in
order to meet production demands



Mustafa Umut Sarac
Istanbul[/b]
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Mustafa Umut Sarac
Footcatch-Routinier


Anmeldungsdatum: 19.09.2018
Beiträge: 177
Wohnort: Istanbul - Turkey

BeitragVerfasst am: 08.05.2019, 06:47    Titel: Antworten mit Zitat

if you want wildest freedom to design your flow topology and the shape of your boomerang , you might select

preconditioning to zero
and the constraint relaxation to maximum.
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