Article Archives - L'hypercube

Dans la continuité des stages de Marc ALECIAN (2021), puis Mina CHAPON (2021), un outil Python a été développé pour calculer les facteurs de formes de rayonnement entre « facettes » planes.

Incontournables dans la détermination de la température moyenne radiante, les facteurs de formes sont un paramètre de première importance dans la détermination du confort thermique, notamment pour le rayonnement CLO & GLO (Courtes Longueurs d’Ondes and Grandes Longueurs d’Ondes – plus d’explications sur la page dédiée : Calcul de la MRT).

Après avoir été présenté à la conférence IBPSA France 2022, le code est désormais disponible sur Gitlab : https://gitlab.com/arep-dev/pyViewFactor et sur PyPi avec un simple pip install pyviewfactor !

La documentation complète de la librairie est accessible here.

blog section, Publication

IBPSA France 2022

25 May 20223 January 2023 Mateusz Bogdan

AREP L'hypercube attended the IBPSA France 2022 conference (at Châlons-en-Champagne, may 19th-20th), to present a paper entitled " Computation of View Factors between polygons - Application to urban thermal and comfort studies« .

Des travaux sont en cours pour rendre ces codes open-source, sous forme de librairie Python : pyViewFactor

Abacus of VF between a wall and an individual (cylinder)

Comparison of surface temperatures with and without taking into account the exact view factors

MRT computation with view factors

blog section, Publication

IBPSA 2021 Conference

13 August 20213 January 2023 Édouard Walther

We will be participating to theInternational Building Performance Simulation Association conference in Bruges in September this year.

Three paper will be presented, exposing part of the research done last year:

Urban Heat Island modeling with: Simulation of outdoor thermal comfort: A tweak with EnergyPlus
Spatialised computation of indoor comfort levels in semi-open spaces: Spatial distribution of thermal comfort: A case study in Paris’ station
Infrared radiation and polymer materials such as ETFE: A Spectral Model for Longwave Radiant Heat Transfer: Influence of New generation Polymers in BES

blog section, Publication

"Building Physics" publication

11 August 20213 January 2023 Édouard Walther

This post promotes a non-commercial announcement!

The result of a year's work is an open-source book published by a member of the team, dealing with problems in building physics and soberly entitled:

« Building Physics – Applications in Python »

The main features of the book are the following:

freely available as a PDF file,
source code is provided on github,
Jupyter Notebooks allow for direct applications, without install! (link to the 1st example).

blog section, Publication

Publication in "Techniques de l'Ingénieur"

26 November 202020 October 2021 Édouard Walther

Publication of our calculation method for natural ventilation

Our coupling method between computational fluid mechanics and dynamic thermal simulation, used to calculate natural ventilation, was published this month in the Techniques de l’Ingénieur. The full article is available on their website. Alternatively you can contact us for more details!

blog section, Publication

IBPSA 2019

13 September 20196 January 2023 Mateusz Bogdan

Thermal comfort and the simulation of natural ventilation, for us that means a lot! Our researchers Edouard WALTHER and Antoine HUBERT presented their latest advances at the IBPSA World #bs2019 conference in partnership with École Normale Supérieure Paris-Saclay.

blog section, Publication

Foam'U

5 June 20189 January 2023 nabladmin

AREP and the CSTB were present at the 3rd edition of the Foam'U conference (French-speaking users of OpenFOAM) at the University of Valenciennes, on 23 & 24 May 2018