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Site institutionnel d'Agrocampus OuestAGROCAMPUS OUEST

Institut national supérieur des sciences agronomiques, agroalimentaires, horticoles et du paysage

Pierre-Emmanuel Bournet

Pierre-Emmanuel BournetDepartment of Physical Environment, Landscape Architecture and Territorial Development
2 rue André Le Nôtre
49045 Angers cedex 01

tél : +33 (0) 2 41 22 55 04

Career path
Research topics
Research programs
Relevant links

French version

After an engineer diploma in hydraulics and fluid mechanics (at ENSEEIHT, Toulouse, France), I started a Phd thesis in environmental sciences in a laboratory (CEREVE) belonging to the water and forest engineering school (ENGREF) and to the bridges and roads engineering school (ENPC) in Paris. I got a position then in administrative research for IFREMER (French National Institute for Marine Research) in Brussels. Then I got a job at Numeca Int SA, Brussels, working on environmental applications of a CFD software. I also worked for INRIA (French National Institute for Research in Computer Science and Control) on fluid-structure coupling before I became assistant professor in Fluid mechanics at the French National Agronomic Institute (INA-PG) in Paris in 2001. Finally, I got an assistant professor position in Agrocampus Ouest, Angers, France in 2001. In 2011, I became professor in physics of transfers and since 2012, I am the head of the EPHor (Environmental Physics and Horticulture) research unit.


2008 : Accreditation to supervise research (Habilitation à Diriger des Recherches), University of Angers, speciality Physics Physique : « Contribution to the modelling of flows and transfers in fluid mechanics : analysis of several coulping mechanisms.»
1996 : Phd thesis at ENGREF (National School of Agriculture, Environment, Water and Forestry, Paris, France) in environmental sciences: « Contribution to the hydrodynamic and thermal study of lake Bourget: density currents and internal waves »
1993 : Engineer diploma at ENSEEIHT (Engineering school in Electrical Engineering, Electronics, Computer Science, Hydraulics and Telecommunications, Toulouse, France) in hydraulics and fluid mechanics
1999 : Master degree at UPS (Paul Sabatier University, Toulouse) in environmental physics and chemistry

Career path 

Since 2012: Head of the EPHor research unit (Environmental Physics and Horticulture)
Since 2011: Professor, Agrocampus Ouest, Institut National d’Horticulture et de Paysage, Angers
2001-2011: Assistant professor, Agrocampus Ouest, Institut National d’Horticulture et de Paysage
1999-2000: Assistant professor, Institut National Agronomique Paris-Grignon (INA P-G), Paris
1999: Engineer, French National Institute for Research in Computer Science and Control (INRIA), Sophia Antipolis
1998-1999: Engineer, Numeca Int. S.A.-Université Libre Flamande Bruxelles
1997-1998: Delegate at the european institutions for IFREMER (French National Institute of Marine Research) –Club of associated research institutes (CLORA), Bruxelles
1993-1996 Phd student (grant from ENGREF-French ministry of agriculture), research laboratory on water, city and environment (CEREVE) ENGREF ENPC, Noisy-le Grand


Department of Physical Environment, Landscape Architecture and Territorial Development (MilPPaT)
Teaching unit « Physics of transfers and bioclimatology »
Teaching courses:
• Hydraulics (L3I & L3A),
• Landscape engineering (M1 major Landscape), Water management (M1 specialty Horticulture),
• Sciences and technics for landscape engineers (M2 Landscape)
• + several short courses (M2 major Horticulture, M1 initiation to project engineering)

Teaching topics : fluid mechanics, hydraulics, water management; implementation : dimensioning of structures, sanitation, drainage, watering, irrigation, pumps, greenhouse climate.

Research topics

I belong to the Environmental Physics and Horticulture research unit (EPHor), AGROCAMPUS OUEST.
My research interest is about the coupled mass-energy transfers in the context of horticultural production. I mainly focus on the modelling of greenhouse distributed climate with a particular attention paid to the radiative transfers and interactions of the crop with the local climate. Recently, we paid attention to the impact of water restriction on the energy and water transfers in the substrate-plant-atmosphere continuum.
The models developed for the horticultural applications are currently adapted to urban applications. The aim there is to reduce water consumption while guaranteed the ecosystem services of the urban plants – particularly the evaporative cooling to mitigate the urban heat island effect.
I also developed activities on livestock buildings. The aim was to characterize the climate inside such buildings in terms of temperature and humidity, but also to analyze gaseous transfers (ammonia in particular) and plume spreading outside of the building.

Former and current fields of research:
• environment (hydrodynamics, pollutant transfer, atmospheric flows …),
• limnology, river and marine hydraulics, naval hydraulics,
• thermics, cooling processes (for food conservation),
• fluid-structure interaction (applied to bridges),
• greenhouse climate (opening management, energy balance, plant-climate interaction, impact of water restriction, condensation),
• livestock building climatics (climate distribution, gaseous transfers).

These two las topics correspond to my current research activities.
Keywords: greenhouse, livestock building, fluid mechanics, thermics, radiation, coupling, turbulence, CFD, numerical methods, sensible and latent heat, porous medium, metrology

Research programs

Recently finished programs

Plantinov’ser (2009-13): Funded by ADEME and Région Pays de la Loire. This project aimed at limiting the greenhouse crop systems energy consumption by providing new cultivars and new climatic strategies. The research unit showed the economic and technical interest of dehumidification heat pump. Experimental validation conducted on ornamental crops evidenced the efficiency of our innovative control strategy.

Physi’Ho (2012-16): Funded by Région Pays de la Loire and growers. The project aims at understanding the interactions between climate, pathogens and hydrangea physiology, and their influence on the plants storage.

Conser (2012-16): Funded by Région Pays de la Loire and growers. This project aims at improving the understanding of the cucumber plants responses to greenhouse climate. The project made a physiologic reference of the cucumber photosynthetic efficiency according to climatic conditions in order to improve the energetic efficiency of the climate strategies.

Current programs

VégétEauVille (2016-19): funded by ADEME. A Ph. D position stared in October 2016 to quantify the water and energy transfers in the soil-plant-atmosphere continuum in urban condition. The project aims at determining the plant’s influence on the urban microclimate when under water restriction.

Projet OBAUC (2016-17): funded by Région Pays de la Loire. The aim of the project is to characterize plant-environment interrelations, to understand and predict plant development. The specific goals are to analyze the combined effects of soil compaction, water supply restriction and shading on plant transpiration, plant biomass as well as aerial and root architecture.

Nature 4 Cities (2016-20): Funded by the European Commission (H2020). Nature4Cities aims at developing complementary and interactive modules to engage urban stakeholders in a collective-learning process about renaturing cities, develop and circulate an extensive knowledge base on Natural Based Solution (NBS), new business, financial and governance models for NBS projects, as well as providing tools for the impact assessment, valorization and follow-up of NBS projects. Our aims will be to provide performance assessment of NBS regarding a range of urban challenges by providing definitions of a multi-scalar and cross-thematic sets of urban performance indicators.



Peer-reviewed journals

Rojano F., Bournet P.E., Hassouna M., Robin P., Kacira M., Choi C.Y. (2016) Computational Modelling of thermal and humidity gradients inside a naturally ventilated poultry house, Biosystems Engineering, 151 : 273-285.

Cannavo P., Bouhoun Ali H., Chantoiseau E., Migeon C., Charpentier S., Bournet P.E. (2016) Stomatal resistance of New Guinea Impatiens pot plants. Part 2: Model extension for water restriction and application to irrigation scheduling, Biosystems Engineering, 149:82-93.

Bouhoun Ali H., Bournet P.E., Cannavo P., Chantoiseau E., Sourgnes M. (2016) Stomatal resistance of New Guinea Impatiens pot plants. Part 1: Model development for well-watered plants based on design of experiments, Biosystems Engineering, 149:112-124.

Chantoiseau E., Migeon M., Chassériaux G., Bournet P.E. (2016) Heat-pump dehumidifier as an efficient device to prevent condensation in horticultural greenhouses, Biosystems Engineering, 142, 27-41.

Rojano Aguilar F., Bournet P.E., Hassouna M., Robin P., Kacira M., Choi C.Y. (2015) Modelling Heat and Mass Transfer of a Broiler House Using Computational Fluid Dynamics, Biosystems Engineering, 136, 25-38.

Bouhoun Ali H., Bournet P.E., Danjou V., Morille B., Migeon C. (2014) CFD simulations of the night-time condensation inside a closed glasshouse: Sensitivity analysis to outside external conditions, heating and glass properties, Biosystems Engineering, 127, 159–175.

Morille B., Migeon C., Bournet P.E. (2013). Is the Penman–Monteith model adapted to predict crop transpiration under greenhouse conditions? Application to a New Guinea Impatiens crop. Scientia Horticulturae, 152, 80-91.

Kichah A., Bournet P.E., Migeon C. (2012) Measurement and CFD simulations of the transpiration and leaf temperatures of an Impatiens pot plant crop in a greenhouse, Biosystems Engineering, 112, 22-34.

Serir L., Benmoussa H., Bournet P.E. (2011) Numerical Analysis of the influence of soil -to-air Convective Heat Transfer Coefficient on the Global indoor climate model of a closed Plastic Tunnel Greenhouse, Int. J. Agricultural Research, 6, 458-469.

Bournet P.E., Boulard T. (2010) Effect of ventilator configuration on the distributed climate of greenhouses: a review, Computers and Electronics in Agriculture, 74, 195–217.

Mesmoudi K., Soudani A., Bournet P.E. (2010) Determination of the inside air temperature of a greenhouse with tomato crop under hot and arid climates, J. Appl. Sc. in Environ. Sanitation, 5(2), 110-122.

Mesmoudi K., Soudani, A., Zitouni, B., Bournet P.E., Serir, L. (2010) Experimental study of the energy balance of unheated greenhouses under hot and arid climates: study for the night period of winter season, J.A.U. for basic and applied sciences, 9, 51-65.

Bournet P.E., Ould Khaoua. S.A., Boulard T. (2007) Numerical prediction of the effect of vent arrangements on the ventilation and energy transfers in a multi-span glasshouse using a bi-band radiation model. Biosystems Engineering, 98, 224-234.

Bournet P.E., Ould Khaoua. S.A., Boulard T., Migeon C., Chassériaux G. (2007) Effect of roof and side opening combinations on the ventilation of a glasshouse using computer simulations, Trans. of the ASABE, American Society of Agricultural and Biological Engineers, 50(1), 201-212.

Ould Khaoua S.A., Bournet P.E., Migeon C., Boulard T., Chassériaux G. (2006) Analysis of greenhouse ventilation efficiency based on Computational Fluid Dynamics, Biosystems Engineering, 95(1), 83-98.

Alvarez G., Bournet P.E., Flick D. (2003) 2D simulation of turbulent flows and transfers through stacked spheres, International journal of heat and mass transfer, 46, 2459-2469.

Bournet P.E. (2000) A contribution to the study of the thermal and hydrodynamical behaviour of Lake Bourget: density currents and internal waves, La Houille Blanche, Revue Internationale de l’Eau, 1-2000, 11-15.

Piperno S., Bournet P.E., (1999) Numerical simulations of wind effects on flexible civil engineering structures, European Journal of Computational Mechanics, 5-6(8), 659-687.

Bournet P.E., Dartus D., Tassin B., Vinçon-Leite B. (1999) Numerical investigation of plunging density current, Journal of Hydraulic Engineering, 125, Vol 6 : 584-594.

Vinçon-Leite B., Bournet P.E., Gayte, X., Fontvieille D., Tassin, B. (1998) Impact of a flood event on the biogeochemical behaviour of a mesotrophic alpine lake: Lake Bourget, in Developments in Hydrobiology, Hydrobiologia, 373/374 : 361-377.

Bournet, P.E., Groleau, A., Tassin, B. & Vinçon-Leite, B. (1997) Linear and nonlinear waves in a deep Alpine Lake, Verh. Internat.Verein. Limnol., 26: 232-235.

Vinçon-Leite, B., Tassin, B., Bournet, P.E. & Groleau, A. (1997) First assessment of the influence of flood events on the phosphorus cycle in a deep alpine lake: Lake Bourget (France), Verh. Internat. Verein. Limnol., 26 : 403-407.

Bournet, P.E., Dartus, D., Tassin, B. & Vinçon-Leite, B. (1996) Internal waves in Lake Bourget: Data analysis with linear models, Journal of Water Science, 9: 247-266.

Relevant links

Institut de Recherche en Sciences et Techniques de la Ville (IRSTV)

Structure fédérative de recherches QuaSav Qualité et Santé du Végétal