Molecular Dynamics Simulation of Annular Flow Boiling in a Microchannel with 70000 Atoms
Molecular dynamics simulation of annular flow
boiling in a nanochannel with 70000 particles is numerically
investigated. In this research, an annular flow model is developed to
predict the superheated flow boiling heat transfer characteristics in a
nanochannel. To characterize the forced annular boiling flow in a
nanochannel, an external driving force F ext ranging from 1to12PN
(PN= Pico Newton) is applied along the flow direction to inlet fluid
particles during the simulation. Based on an annular flow model
analysis, it is found that saturation condition and superheat degree
have great influences on the liquid-vapor interface. Also, the results
show that due to the relatively strong influence of surface tension in
small channel, the interface between the liquid film and vapor core is
fairly smooth, and the mean velocity along the stream-wise direction
does not change anymore.
[1] D.C. Rapaport, "The art of molecular dynamics simulation", England:
Cambridge University Press, 1995.
[2] D. Frenkel, B. Smit, "Understanding molecular simulation - from
algorithms to applications", Academic Press, 1996.
[3] L.N. Long, M.M. Micci, B.C. Wong, "Molecular dynamics simulation of
droplet evaporation", Comp. Phys. Commun, 1996.
[4] J.R. Lukes, X.G. Liang, and C.L. Tien, " Molecular dynamics study of
solid thin-film thermal conductivity" Proceedings of the 1998
International Mechanical Engineering Congress and Exposition
November 15-20, Anaheim, California, pp.229-240, 1998.
[5] P. Yi, D. Poulikakos, J. Walther and G. Yadigaroglu, "Molecular
dynamics simulation of vaporization of an ultra-thin liquid Argon layer
on a surface", International Heat and Mass Transfer, Vol. 45, pp. 2087-
2100, 2002.
[6] Z.J. Wang, M. Chen and Z.Y. Guo, "A non-equilibrium molecular
dynamics simulation of evaporation", International Conference Passive
and Low Energy Cooling for the Built Environment, Santorini, Greece
Vol.1, pp. 543-547, 2005.
[7] T. Dong, Z. Yang, H. Wu, "Molecular simulations of R141b boiling flow
in micro/nano channel: Interfacial phenomena", Energy Conversion and
Management, Vol. 47, pp.2178-2191, 2006.
[8] C.Y. Ji, Y.Y. Yan, "A molecular dynamics simulation of liquid-vaporsolid
system near triple phase contact line of flow boiling in a
microchannel", Applied thermal engineering, Vol.28, pp.195- 202, 2008.
[9] S.D. Stoddard, P.J. Ford, "Numerical experiments on the stochastic
behavior of a Lennard-Jones gas system", Phys Rev A, Vol.8, pp.1504-
1512, 1973.
[10] D. Toghraie Semiromi, A.R. Azimian, "Molecular dynamics simulation
of liquid-vapor phase equilibrium by using the modified Lennard-Jones
potential function", Heat Mass Transfer, Vol. 46, pp.287-294, 2010.
[11] P.A., Thompson, M.O. Robbins, "Shear flow near solids: Epitaxial order
and flow boundary conditions", Phys. Rev. A, Vol. 41, pp.6830-6837,
1990.
[12] P. Yi, D. Poulikakos, J. Walther, G. Yadigaroglu, "Molecular dynamics
simulation of vaporization of an ultra-thin liquid Argon layer on a
surface, Int J Heat Mass Transfer, Vol.45, pp.2087-2100, 2002.
[13] C.Y. Ji, T. Tsuruta, G. Nagayama, "Effects of solid heating surface on
nanometer sized liquid films", Thermal Science and Engineering, Vol.
13, pp.25-28, 2005.
[14] G. Sutmann, "Classical molecular dynamics", John Von Neumann
Institute for Computing. J ulich, NIC Series, Vol.10, pp.211-254, 2002
[15] J.M. Haile, "Molecular dynamics simulation, elementary methods",
Wiley-Interscience Publication, 1997.
[16] F.J. Alexander, A.L. Garcia, "The direct simulation of Monte-Carlo
method", Computer Simulation Journal, Vol. 11, pp.588-593, 1997.
[17] J.L. Xu, F.J. Zhou, A.L. Garcia, " Molecular dynamics simulation of
micro- Poiseuille flow for liquid argon in nanoscale", J. Heat and Mass
Transfer, Vol. 47, pp. 501-513, 2004.
[18] I. Bitsanis, J.J. Magda, M. Tirrell, H.T. Davis, "Molecular dynamics of
flow in microscopes", J Chem Phys, Vol.87, pp.173-175, 1987.
[19] G. Nagayama, P. Cheng, "Effects of interface wettability on microscale
flow by molecular dynamics simulation", Int. J. of Heat and Mass
Transfer, Vol. 47, pp. 501-513, 2004.
[20] S. Somers, H.T. Davis, "Microscopic dynamics of fluids confined
between smooth and atomically structured solid surface", J Chem Phys,
Vol.96, pp.5389-5407, 1992.
[21] D. Toghraie Semiromi D, A.R. Azimian, "Nanoscale Poiseuille flow and
effects of modified Lennard-Jones potential function", Heat Mass
Transfer, Vol. 46, pp.791-801, 2010.
[22] D. Toghraie Semiromi D, A.R. Azimian, "Molecular dynamics
simulation of nonodroplets with the modified Lennard-Jones potential
function", Heat Mass Transfer, Article in press, 2010.
[1] D.C. Rapaport, "The art of molecular dynamics simulation", England:
Cambridge University Press, 1995.
[2] D. Frenkel, B. Smit, "Understanding molecular simulation - from
algorithms to applications", Academic Press, 1996.
[3] L.N. Long, M.M. Micci, B.C. Wong, "Molecular dynamics simulation of
droplet evaporation", Comp. Phys. Commun, 1996.
[4] J.R. Lukes, X.G. Liang, and C.L. Tien, " Molecular dynamics study of
solid thin-film thermal conductivity" Proceedings of the 1998
International Mechanical Engineering Congress and Exposition
November 15-20, Anaheim, California, pp.229-240, 1998.
[5] P. Yi, D. Poulikakos, J. Walther and G. Yadigaroglu, "Molecular
dynamics simulation of vaporization of an ultra-thin liquid Argon layer
on a surface", International Heat and Mass Transfer, Vol. 45, pp. 2087-
2100, 2002.
[6] Z.J. Wang, M. Chen and Z.Y. Guo, "A non-equilibrium molecular
dynamics simulation of evaporation", International Conference Passive
and Low Energy Cooling for the Built Environment, Santorini, Greece
Vol.1, pp. 543-547, 2005.
[7] T. Dong, Z. Yang, H. Wu, "Molecular simulations of R141b boiling flow
in micro/nano channel: Interfacial phenomena", Energy Conversion and
Management, Vol. 47, pp.2178-2191, 2006.
[8] C.Y. Ji, Y.Y. Yan, "A molecular dynamics simulation of liquid-vaporsolid
system near triple phase contact line of flow boiling in a
microchannel", Applied thermal engineering, Vol.28, pp.195- 202, 2008.
[9] S.D. Stoddard, P.J. Ford, "Numerical experiments on the stochastic
behavior of a Lennard-Jones gas system", Phys Rev A, Vol.8, pp.1504-
1512, 1973.
[10] D. Toghraie Semiromi, A.R. Azimian, "Molecular dynamics simulation
of liquid-vapor phase equilibrium by using the modified Lennard-Jones
potential function", Heat Mass Transfer, Vol. 46, pp.287-294, 2010.
[11] P.A., Thompson, M.O. Robbins, "Shear flow near solids: Epitaxial order
and flow boundary conditions", Phys. Rev. A, Vol. 41, pp.6830-6837,
1990.
[12] P. Yi, D. Poulikakos, J. Walther, G. Yadigaroglu, "Molecular dynamics
simulation of vaporization of an ultra-thin liquid Argon layer on a
surface, Int J Heat Mass Transfer, Vol.45, pp.2087-2100, 2002.
[13] C.Y. Ji, T. Tsuruta, G. Nagayama, "Effects of solid heating surface on
nanometer sized liquid films", Thermal Science and Engineering, Vol.
13, pp.25-28, 2005.
[14] G. Sutmann, "Classical molecular dynamics", John Von Neumann
Institute for Computing. J ulich, NIC Series, Vol.10, pp.211-254, 2002
[15] J.M. Haile, "Molecular dynamics simulation, elementary methods",
Wiley-Interscience Publication, 1997.
[16] F.J. Alexander, A.L. Garcia, "The direct simulation of Monte-Carlo
method", Computer Simulation Journal, Vol. 11, pp.588-593, 1997.
[17] J.L. Xu, F.J. Zhou, A.L. Garcia, " Molecular dynamics simulation of
micro- Poiseuille flow for liquid argon in nanoscale", J. Heat and Mass
Transfer, Vol. 47, pp. 501-513, 2004.
[18] I. Bitsanis, J.J. Magda, M. Tirrell, H.T. Davis, "Molecular dynamics of
flow in microscopes", J Chem Phys, Vol.87, pp.173-175, 1987.
[19] G. Nagayama, P. Cheng, "Effects of interface wettability on microscale
flow by molecular dynamics simulation", Int. J. of Heat and Mass
Transfer, Vol. 47, pp. 501-513, 2004.
[20] S. Somers, H.T. Davis, "Microscopic dynamics of fluids confined
between smooth and atomically structured solid surface", J Chem Phys,
Vol.96, pp.5389-5407, 1992.
[21] D. Toghraie Semiromi D, A.R. Azimian, "Nanoscale Poiseuille flow and
effects of modified Lennard-Jones potential function", Heat Mass
Transfer, Vol. 46, pp.791-801, 2010.
[22] D. Toghraie Semiromi D, A.R. Azimian, "Molecular dynamics
simulation of nonodroplets with the modified Lennard-Jones potential
function", Heat Mass Transfer, Article in press, 2010.
@article{"International Journal of Engineering, Mathematical and Physical Sciences:58972", author = "D.Toghraie and A.R.Azimian", title = "Molecular Dynamics Simulation of Annular Flow Boiling in a Microchannel with 70000 Atoms", abstract = "Molecular dynamics simulation of annular flow
boiling in a nanochannel with 70000 particles is numerically
investigated. In this research, an annular flow model is developed to
predict the superheated flow boiling heat transfer characteristics in a
nanochannel. To characterize the forced annular boiling flow in a
nanochannel, an external driving force F ext ranging from 1to12PN
(PN= Pico Newton) is applied along the flow direction to inlet fluid
particles during the simulation. Based on an annular flow model
analysis, it is found that saturation condition and superheat degree
have great influences on the liquid-vapor interface. Also, the results
show that due to the relatively strong influence of surface tension in
small channel, the interface between the liquid film and vapor core is
fairly smooth, and the mean velocity along the stream-wise direction
does not change anymore.", keywords = "Lennard-Jones Potential, Molecular DynamicsSimulation, Periodic Boundary Conditions (PBC), Non-EquilibriumMolecular Dynamics (NEMD), Annular Flow Boiling", volume = "5", number = "6", pages = "853-7", }
