Stratified MHD turbulence

  • 2563, kf/k1=30: B001_kf30_256b2 (43M)
  • 1283, kf/k1=5: B01e_kf5_128z_pm05_pc_expzH (45M)
  • 512×128×512, kf/k1=20: B01_kf20_512x128x512_pm05_pc (1.2M), mpg (8.8M)

    y-averages

  • 643×128, kf/k1=15, ReM=6: I64k15cr (2.4M)
  • 2563, kf/k1=15, ReM=76: I256k15a2_3 (9.9M), avi (1.7M)
  • 2563, kf/k1=30, ReM=38: I256k30c (2.6M), avi (409k)

    Vertical fields

  • 2563, kf/k1=30, ReM=19: V256k30VFa (30M)
  • 2563, kf/k1=30, ReM=19: V256k30VF_Bz01 (47M)
  • 2563, kf/k1=30, ReM=19: V256k30VF_Bz01_fresh (71M)
  • 2563, kf/k1=30, ReM=19: V256k30VF_Bz002 (96M)
  • 2563, kf/k1=30, ReM=19: V256k30VF_Bz002_fresh (139M)
  • 2563, kf/k1=30, ReM=19: VH256k30VF_Bz002 (54M)
  • 2563, kf/k1=30, ReM=19: VH256k30VF_Bz002_By005 (49M)
  • 5123, kf/k1=30, ReM=40: V512k30VF_Bz002 (14M)
  • 10243, kf/k1=30, ReM=95: V1024k30VF_Bz002 (18M)
  • g=2, 2563, kf/k1=30, ReM=19: VH256k30VF_Bz002_By005 (26M)

    Vertical fields, larger Mach number

  • 5123, Marms=0.5, kf/k1=30, ReM=8.5, w/ shock visc: V512k30VF_Bz010_Snu1em3_f02 (15M)

    Vertical fields with corona (work by Joern Warnecke and Illa R. Losada)

  • 2562×512, kf/k1=30, ReM=18: bbz_HB002_corona (2.8M), [avi] (43M)
  • 2562×512, kf/k1=30, ReM=18: b2_yz_HB002_corona (4.7M), [avi] (26M)
  • 2562×512, kf/k1=30, ReM=18: b2_xy_HB002_corona (1.5M), [avi] (19M)
  • 2562×512, kf/k1=30, ReM=18: bbz_yz_HB002_corona (1.5M), [avi] (13M)
  • 2562×512, kf/k1=30, ReM=18: bbz_xy_HB002_corona (1.5M), [avi] (18M)

    DNS with polytropic stratification (work with Illa R. Losada)

  • Horizontal field, 2563, kf/k1=30, ReM=18: 256gam53_B005a (4.4M),
  • Vertical field, 2563, kf/k1=30, ReM=18: VV256gam53_B002b (9.0M)
  • Vertical field, 2563, kf/k1=30, ReM=18: VV256gam53_B005e (t=0.01-0.45; 1.3M), VV256gam53_B005d (t=0.61-0.69; 0.2M), VV256gam53_B005c (t=1.20-1.65; 1.3M), VV256gam53_B005b (t=2.06-3.45; 3.9M).

    DNS with rotation (work with Illa R. Losada)

  • Co=0.03, 2563, kf/k1=30, ReM=18: Om05_b005_th0 (7.9M),
  • Co=0.12, 2563, kf/k1=30, ReM=18: Om20_b005_th0 (6.3M),

    Mean-field runs

  • 64×128, 64x64_strat1_B1_W1r_3D (1.6M), 3-D run, aspect ratio 1:2
  • 64×64, 64x64_strat1_B1_W1r4_3D (1.2M), smaller aspect ratio
  • 64×128, 64x64_strat1_B1_W1r_2D (4.4M), 2-D run in the xz plane

    Mean-field runs with rotation (with Illa R. Losada)

  • Co=0.03, 1283, θ=0o Om10_b005_th0 (1.1M)
  • Co=0.02, 1283, θ=0o Om05_b005_th0 (631k)
  • Co=0.006, 1283, θ=30o Om02_b005_th30 (3.5M)
  • Co=0.006, 1283, θ=60o Om02_b005_th60 (4.8M)
  • Co=0.006, 1283, θ=90o Om02_b005_th90 (2.0M)

    Mean-field runs with polytropic stratification and vertical field (with Illa R. Losada)

  • 3-D, γ=5/3, 1283, VV3D64x64x128gam53_B005a-2 (5.1M, 25 July 2013)
  • 3-D, γ=5/3, 1283, VV3D64x64x128gam53_B005a (5.1M, 25 July 2013)
  • 2-D, γ=5/3, 2562, VV256gam53_B002a2b (15M, 5 July 2013)

    Reference:

    Brandenburg, A., Kleeorin, N., & Rogachevskii, I.: 2010, ``Large-scale magnetic flux concentrations from turbulent stresses,'' Astron. Nachr. 331, 5-13 (arXiv:0910.1835, ADS, PDF)

    Detection of NEMPI in DNS in ApJL 740, L50


    Effective pressure in stratified runs.


    Snapshot from the movie with nearly constant energy density in height.

    $Date: 2014/05/15 03:18:09 $, $Author: brandenb $, $Revision: 1.31 $