Numerical Investigation of Natural Convection of Pine, Olive, and Orange Leaves
Heat transfer of leaves is a crucial factor in optimal
operation of metabolic functions in plants. In order to quantify this
phenomenon in different leaves and investigate the influence of leaf
shape on heat transfer, natural convection for pine, orange and olive
leaves was simulated as representatives of different groups of leaf
shapes. CFD techniques were used in this simulation with the
purpose to calculate heat transfer of leaves in similar environmental
conditions. The problem was simulated for steady state and threedimensional
conditions. From obtained results, it was concluded that
heat fluxes of all three different leaves are almost identical, however,
total rate of heat transfer have highest and lowest values for orange
leaves, and pine leaves, respectively.
[1] Molina-Aiz, F.D., Valera, D.L., Alvarez, A.J., 2004. Measurement and
simulation of climate inside Almeria-type greenhouses using
computational fluids dynamics. Agr. Forest Meteorol. 125, 33–51.
[2] Shklyar, A., Arbel, A., 2004. Numerical model of the three dimensional
isothermal flow patterns and mass fluxes in a pitched-roof greenhouse. J.
Wind Eng. Ind. Aerod. 92, 1039–1059.
[3] Bartzanas, T., Boulard, T., Kittas, C., 2004. Effect of vent arrangement
on windward ventilation of a tunnel greenhouse. Biosyst. Eng. 88 (4),
479–490.
[4] Fatnassi, H., Boulard, T., Lagier, J., 2004. Simple indirect estimation of
ventilation and crop transpiration rates in a greenhouse. Biosyst. Eng. 88
(4), 467–478.
[5] Boulard, T., Wang, S., 2002. Experimental and numerical studies on the
heterogeneity of crop transpiration in a plastic tunnel. Comput. Electron.
Agr. 34, 173–190.
[6] Pei-Xue Jiang, Xiao-Chen Lu, Numerical simulation of fluid flow and
convection heat transfer in sintered porous plate channels, International
Journal of Heat and Mass Transfer 49 (2006) 1685–1695.
[7] P.-H. Kao, Y.-H. Chen, R.-J. Yang, Simulations of the macroscopic and
mesoscopic natural convection flows within rectangular cavities,
International Journal of Heat and Mass Transfer 51 (2008) 3776–3793.
[8] Geniy V. Kuznetsov, Mikhail A. Sheremet, Numerical simulation of
turbulent natural convection in a rectangular enclosure having finite
thickness walls, International Journal of Heat and Mass Transfer 53
(2010) 163–177.
[9] M. Abdul Basit, Muhammad Rafique, Imran R. Chughtai, Mansoor H.
Inayat, Computer simulation of natural convection heat transfer from an
assembly of vertical cylinders of PARR-2, Applied Thermal Engineering
27 (2007) 194–201.
[10] A.A. Mohamad, M. El-Ganaoui, R. Bennacer, Lattice Boltzmann
simulation of natural convection in an open ended cavity, International
Journal of Thermal Sciences 48 (2009) 1870–1875.
[11] A. Haghshenas, M. Rafati Nasr, M.H. Rahimian, Numerical simulation
of natural convection in an open-ended square cavity fille with porous
medium by lattice Boltzmann method.
[12] A.F.G. Jacobsl, B.G. Heusinkveldl and G.J.T. KesseF, Simulating of leaf
wetness duration within a potato canopy, Received 2005 Elsevier.
[13] Katrina Richards, Adaptation of a leaf wetness model to estimate
dewfall amount on a roof surface, Agricultural and Forest Meteorology
149 (2009) 1377–1383.
[14] Boulard, T., Kittas, C., Roy, J.C., Wang, S., 2002a. Convective and
ventilation transfers in greenhouses, part 2: determination of the
distributed greenhouse climate. Biosyst. Eng. 83 (2),129–147 [15] Reichrath, S., Davies, T.W., 2001. Using CFD to model the internal
climate of greenhouses: past, present and future. Agronomie 22, 3–19.
[16] Numerical Heat Transfer and Fluid Flow – Suhas V.Patankar
[17] Jarvis, P.G., 1976. The interpretation of the variations in leaf water
potential and stomata conductance found in canopies in the field. Philos.
Trans. R. Soc. Lond. B 273, 593–610.
[18] Avissar, R., Avissar, P., Mahrer, Y., Bravdo, B.A., 1985. A model to
simulate response of plant stomata to environmental conditions. Agr.
Forest Meteorol. 34, 21–29.
[19] Schuepp, P.H., 1993. Tansley review no. 59. Leaf boundary layers.New
Phytol. 125, 477–507.
[20] Monteith, J.L., 1995. A reinterpretation of stomatal responses to
humidity. Plant Cell Environ. 18, 357–364.
[21] Lhomme, J.P., Elguero, E., Chehbouni, A., Boulet, G., 1998.Stomatal
control of transpiration: examination of Monteith’s formulation of
canopy resistance. Water Resour. Res. 34-9,2301–2308.
[22] Stanghellini C., 1987. Transpiration of greenhouse crops, an aid to
climate management. Ph.D. thesis. Agricultural University,
Wageningen, 150 pp.
[23] Boulard, T., Baille, A., Mermier, M., Villette, F., 1991. Mesures et
mod´ elisation de la r ´ esistance stomatique foliaire et de la transpiration
d’un couvert de tomates de serres. Agronomie11, 259–274.
[1] Molina-Aiz, F.D., Valera, D.L., Alvarez, A.J., 2004. Measurement and
simulation of climate inside Almeria-type greenhouses using
computational fluids dynamics. Agr. Forest Meteorol. 125, 33–51.
[2] Shklyar, A., Arbel, A., 2004. Numerical model of the three dimensional
isothermal flow patterns and mass fluxes in a pitched-roof greenhouse. J.
Wind Eng. Ind. Aerod. 92, 1039–1059.
[3] Bartzanas, T., Boulard, T., Kittas, C., 2004. Effect of vent arrangement
on windward ventilation of a tunnel greenhouse. Biosyst. Eng. 88 (4),
479–490.
[4] Fatnassi, H., Boulard, T., Lagier, J., 2004. Simple indirect estimation of
ventilation and crop transpiration rates in a greenhouse. Biosyst. Eng. 88
(4), 467–478.
[5] Boulard, T., Wang, S., 2002. Experimental and numerical studies on the
heterogeneity of crop transpiration in a plastic tunnel. Comput. Electron.
Agr. 34, 173–190.
[6] Pei-Xue Jiang, Xiao-Chen Lu, Numerical simulation of fluid flow and
convection heat transfer in sintered porous plate channels, International
Journal of Heat and Mass Transfer 49 (2006) 1685–1695.
[7] P.-H. Kao, Y.-H. Chen, R.-J. Yang, Simulations of the macroscopic and
mesoscopic natural convection flows within rectangular cavities,
International Journal of Heat and Mass Transfer 51 (2008) 3776–3793.
[8] Geniy V. Kuznetsov, Mikhail A. Sheremet, Numerical simulation of
turbulent natural convection in a rectangular enclosure having finite
thickness walls, International Journal of Heat and Mass Transfer 53
(2010) 163–177.
[9] M. Abdul Basit, Muhammad Rafique, Imran R. Chughtai, Mansoor H.
Inayat, Computer simulation of natural convection heat transfer from an
assembly of vertical cylinders of PARR-2, Applied Thermal Engineering
27 (2007) 194–201.
[10] A.A. Mohamad, M. El-Ganaoui, R. Bennacer, Lattice Boltzmann
simulation of natural convection in an open ended cavity, International
Journal of Thermal Sciences 48 (2009) 1870–1875.
[11] A. Haghshenas, M. Rafati Nasr, M.H. Rahimian, Numerical simulation
of natural convection in an open-ended square cavity fille with porous
medium by lattice Boltzmann method.
[12] A.F.G. Jacobsl, B.G. Heusinkveldl and G.J.T. KesseF, Simulating of leaf
wetness duration within a potato canopy, Received 2005 Elsevier.
[13] Katrina Richards, Adaptation of a leaf wetness model to estimate
dewfall amount on a roof surface, Agricultural and Forest Meteorology
149 (2009) 1377–1383.
[14] Boulard, T., Kittas, C., Roy, J.C., Wang, S., 2002a. Convective and
ventilation transfers in greenhouses, part 2: determination of the
distributed greenhouse climate. Biosyst. Eng. 83 (2),129–147 [15] Reichrath, S., Davies, T.W., 2001. Using CFD to model the internal
climate of greenhouses: past, present and future. Agronomie 22, 3–19.
[16] Numerical Heat Transfer and Fluid Flow – Suhas V.Patankar
[17] Jarvis, P.G., 1976. The interpretation of the variations in leaf water
potential and stomata conductance found in canopies in the field. Philos.
Trans. R. Soc. Lond. B 273, 593–610.
[18] Avissar, R., Avissar, P., Mahrer, Y., Bravdo, B.A., 1985. A model to
simulate response of plant stomata to environmental conditions. Agr.
Forest Meteorol. 34, 21–29.
[19] Schuepp, P.H., 1993. Tansley review no. 59. Leaf boundary layers.New
Phytol. 125, 477–507.
[20] Monteith, J.L., 1995. A reinterpretation of stomatal responses to
humidity. Plant Cell Environ. 18, 357–364.
[21] Lhomme, J.P., Elguero, E., Chehbouni, A., Boulet, G., 1998.Stomatal
control of transpiration: examination of Monteith’s formulation of
canopy resistance. Water Resour. Res. 34-9,2301–2308.
[22] Stanghellini C., 1987. Transpiration of greenhouse crops, an aid to
climate management. Ph.D. thesis. Agricultural University,
Wageningen, 150 pp.
[23] Boulard, T., Baille, A., Mermier, M., Villette, F., 1991. Mesures et
mod´ elisation de la r ´ esistance stomatique foliaire et de la transpiration
d’un couvert de tomates de serres. Agronomie11, 259–274.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:69957", author = "Ali Reza Tahavvor and Saeed Hosseini and Nazli Jowkar and Behnam Amiri", title = "Numerical Investigation of Natural Convection of Pine, Olive, and Orange Leaves", abstract = "Heat transfer of leaves is a crucial factor in optimal
operation of metabolic functions in plants. In order to quantify this
phenomenon in different leaves and investigate the influence of leaf
shape on heat transfer, natural convection for pine, orange and olive
leaves was simulated as representatives of different groups of leaf
shapes. CFD techniques were used in this simulation with the
purpose to calculate heat transfer of leaves in similar environmental
conditions. The problem was simulated for steady state and threedimensional
conditions. From obtained results, it was concluded that
heat fluxes of all three different leaves are almost identical, however,
total rate of heat transfer have highest and lowest values for orange
leaves, and pine leaves, respectively.", keywords = "Computational fluid dynamic, heat flux, heat
transfer, natural convection.", volume = "9", number = "5", pages = "854-5", }
