Velocity distribution of water molecules in pores under microwave electric field

LISHCHUK, Sergey and FISCHER, Johann (2001). Velocity distribution of water molecules in pores under microwave electric field. International Journal of Thermal Sciences, 40 (8), 717-723.

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    In order to understand the transport of water in pores under the influence of a microwave electric field the velocity distribution function of the water molecules is thought to be a key quantity. First, bulk water under the influence of an alternating electric field is studied by using a kinetic equation. As rotation occurs on a faster time scale and translation on a slower time scale it is argued that the velocity distribution for the bulk water is a Maxwell-Boltzmann distribution. Next, the non-equilibrium molecular dynamics simulation method is applied to study the behaviour of TIP3P water molecules under microwave electric field in a slit pore with thermostated walls. The water heats up till it reaches a steady state temperature. It is found that in the transient process as well as in the steady state the velocity distribution function is a Maxwell-Boltzmann distribution for the corresponding temperature. Hence, there is no convective mass transport due to a direct influence of the electric field.

    Item Type: Article
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre > Materials and Fluid Flow Modelling Group
    Identification Number:
    Page Range: 717-723
    Depositing User: Sergey Lishchuk
    Date Deposited: 10 Nov 2016 16:36
    Last Modified: 10 Nov 2016 16:36

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