PHYSICS/BK21 SEMINA[09..07.03]
관련링크
본문
"
“Onsager Principle and
Nanoscale Hydrodynamics”
♦Speaker :토토 바카라Prof. Ping Sheng (Hong Kong University)
♦Place : Physics Seminar Room (Science Bldg, 3-201)
♦Date & Time : July 3 (Fri), 15:00 ~ 16:00 pm
Abstract
It is probably not a well-known fact that up until recently, continuum hydrodynamics can not accurately
model immiscible flows at the nanoscale.토토 바카라The problem is not with the토토 바카라Navier-Stokes토토 바카라equation,토토 바카라which
must be true, but lies in the hydrodynamic boundary condition, which for토토 바카라the토토 바카라past토토 바카라century토토 바카라has토토 바카라been
held to be no-slip at the fluid-solid interface.토토 바카라In this talk, the history토토 바카라of토토 바카라the토토 바카라hydrodynamic토토 바카라boundary
condition and its associated classic problem of moving contact line will be introduced in토토 바카라some토토 바카라detail.
Here the contact line denotes the intersection of the immiscible fluid-fluid interface with the solid wall,
and when one fluid displaces the other, the contact line moves along토토 바카라the토토 바카라solid토토 바카라wall.토토 바카라 Almost토토 바카라half토토 바카라a
century ago it was already recognized that the moving contact line will lead to infinite viscous dissipation
if one uses the no-slip hydrodynamic boundary condition.토토 바카라We show that by using the Onsager variational
principle, which can be easily derived from basic statistical mechanic principles, one can simultaneously
derive the Navier-Stokes equation토토 바카라and토토 바카라its토토 바카라related토토 바카라boundary토토 바카라conditions토토 바카라at토토 바카라the토토 바카라fluid-solid토토 바카라interface.
The resulting continuum hydrodynamic system, with the revised hydrodynamic토토 바카라boundary토토 바카라conditions,토토 바카라is
shown for the first time to quantitatively reproduce molecular dynamic simulation results at the nanoscale.
Implications of this result for nanoscale hydrodynamics, together with its complementary relation to토토 바카라the
kinetic theory of fluids, will be shown by short movies as well as discussed.
Contact Person : Prof. Wokyung Sung(054-279-2061, wsung@postech.ac.kr)
"
“Onsager Principle and
Nanoscale Hydrodynamics”
♦Speaker :토토 바카라Prof. Ping Sheng (Hong Kong University)
♦Place : Physics Seminar Room (Science Bldg, 3-201)
♦Date & Time : July 3 (Fri), 15:00 ~ 16:00 pm
Abstract
It is probably not a well-known fact that up until recently, continuum hydrodynamics can not accurately
model immiscible flows at the nanoscale.토토 바카라The problem is not with the토토 바카라Navier-Stokes토토 바카라equation,토토 바카라which
must be true, but lies in the hydrodynamic boundary condition, which for토토 바카라the토토 바카라past토토 바카라century토토 바카라has토토 바카라been
held to be no-slip at the fluid-solid interface.토토 바카라In this talk, the history토토 바카라of토토 바카라the토토 바카라hydrodynamic토토 바카라boundary
condition and its associated classic problem of moving contact line will be introduced in토토 바카라some토토 바카라detail.
Here the contact line denotes the intersection of the immiscible fluid-fluid interface with the solid wall,
and when one fluid displaces the other, the contact line moves along토토 바카라the토토 바카라solid토토 바카라wall.토토 바카라 Almost토토 바카라half토토 바카라a
century ago it was already recognized that the moving contact line will lead to infinite viscous dissipation
if one uses the no-slip hydrodynamic boundary condition.토토 바카라We show that by using the Onsager variational
principle, which can be easily derived from basic statistical mechanic principles, one can simultaneously
derive the Navier-Stokes equation토토 바카라and토토 바카라its토토 바카라related토토 바카라boundary토토 바카라conditions토토 바카라at토토 바카라the토토 바카라fluid-solid토토 바카라interface.
The resulting continuum hydrodynamic system, with the revised hydrodynamic토토 바카라boundary토토 바카라conditions,토토 바카라is
shown for the first time to quantitatively reproduce molecular dynamic simulation results at the nanoscale.
Implications of this result for nanoscale hydrodynamics, together with its complementary relation to토토 바카라the
kinetic theory of fluids, will be shown by short movies as well as discussed.
Contact Person : Prof. Wokyung Sung(054-279-2061, wsung@postech.ac.kr)
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