VOF法による津波解析の手法 - env- ?· vof法による津波解析の手法 1自由表面流れの数値解法…

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  • VOF

    3CFD

    CFD

    (Free Surface Capturing)

    [1]

    1 Height Function

    H/H/

    1

    SMAC(Simplified Marker And Cell )[2]

    SMAC

    H

  • VOF(Volume Of Fluid)[3]

    VOF

    [4]

    SMAC

    VOF

    VOF

    VOF

    VOF

    Euler

    ALEArbitrary Lagrangian Eulerian[9] Lagrange

  • Level Set [4,5,6]

    EulerVOF

    VOFLevel Set

    VOF

    0

  • 3[13]

    8

    10m/sec 10t/

    )3()( zgzq

    3g

    4.6.3-1 (1)

    q(z)(kN/m 2)

    (t/m3) g(m/s2)

    [14]

  • 3( 11m)

    8, 9

    10, 11

    312

    117

    10 11

  • 12 8m

    1 2

    2

    12 2m4.7m/secFr 1.5

    3

    3

    13

    40

    5

    10

    12

  • 0

    13 3

    5

    0.00E+00

    1.00E+07

    2.00E+07

    3.00E+07

    4.00E+07

    0 5 10 15 20

    0.0

    26.2

    35.0

    43.5

    51.6

    59.7

    62.9

    0.00E+00

    1.00E+07

    2.00E+07

    3.00E+07

    4.00E+07

    0.0 20.0 40.0 60.0 80.0 100.0

    (%)

    N

    )N

    )

    (s)

    0.00E+00

    1.00E+07

    2.00E+07

    3.00E+07

    4.00E+07

    0 5 10 15 20

    0.0

    26.2

    35.0

    43.5

    51.6

    59.7

    62.9

    0.00E+00

    1.00E+07

    2.00E+07

    3.00E+07

    4.00E+07

    0.0 20.0 40.0 60.0 80.0 100.0

    (%)

    N

    )N

    )

    (s)

    )3()( zgzq 2.2

    1.5

    0.0

    2.2

    1.5

    0.0

    0.6

    0.6

    13

  • [1] C.W.Hirt B.D.Nichols and N.C.RomeroLA-58521975

    [2] A.A.Amsden and F.H.Harlow LA-4376, 1970

    [3] B.D.Nichols C.W.Hirt and R.S.Hotchkiss LA-83551980

    [4] C.W.HirtNumerical Fluid DynamicsA Short Course

    Lecture Notes in TokyoFlow ScienceInc.1982

    [5] 22 1 , ROMBUNNO.TO16, ISSN1882-8922

    [6] B 76 765 P7782010

    [7] 810 P127,2006

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