Changes between Version 19 and Version 20 of AstroBearProjects/resistiveMHD

Timestamp:

10/04/11 00:37:49 (13 years ago)

Author:

Shule Li

Comment:

—

AstroBearProjects/resistiveMHD

@@ -282 +282 @@
 The domain is set to be -6.4 < x < 6.4 and -12.8< y < 12.8, with fixed resolution 480 * 960. The boundaries are all open.[[BR]]
 The initial state is in pressure equilibrium though unstable. We put in a perturbation: [[BR]][[BR]]
-[[latex($\B_x = B_p sin(kx)cos(ky)$)]][[BR]]
-[[latex($\B_y = -B_p cos(kx)sin(ky)$)]][[BR]][[BR]]
+[[latex($B_x = B_p sin(kx)cos(ky)$)]][[BR]]
+[[latex($B_y = -B_p cos(kx)sin(ky)$)]][[BR]][[BR]]
 where [[latex($\B_p$)]] is the perturbation amplitude and [[latex($k = 2\pi/L_y$)]].
 The magnetic field and the density profiles are plotted below:[[BR]][[BR]]
-
+[[Image(http://www.pas.rochester.edu/~shuleli/hhc_plot.png, 50%)]][[BR]][[BR]]
 The magnetic energy is diminished at the X point which will convert to bulk ram pressure that drives the y direction outflow around the x = 0 line. [[BR]]
-For the outflow pattern, the leading edge is bounded by intermediate shocks and the trailing edge is bounded by slow shocks. There are totally four slow mode shocks stemming from the Sweet-Parker region, as shown in the following figure.[[BR]][[BR]]
-
-The time evolution model can be given by the Semenov solution.[[BR]]
-
-
+For the outflow pattern, the leading edge is bounded by intermediate shocks and the trailing edge is bounded by slow shocks(Petschek-type). There are totally four slow mode shocks stemming from the Sweet-Parker region, as shown in the following figure.[[BR]][[BR]]
+[[Image(http://www.pas.rochester.edu/~shuleli/petschek_diagram.png, 50%)]][[BR]][[BR]]
+The time evolution model can be given by the Semenov solution, which is obtained by assuming a large resistivity box at the stagnation point. See the following figure.[[BR]][[BR]]
+[[Image(http://www.pas.rochester.edu/~shuleli/semenov_evolution.png, 50%)]][[BR]][[BR]]
+The flow pattern for our setup is shown in the following plot:[[BR]][[BR]]
+[[Image(http://www.pas.rochester.edu/~shuleli/hhc_flowpattern.png, 50%)]][[BR]][[BR]]
+The 2-D mach number plot is shown below:[[BR]][[BR]]
+[[Image(http://www.pas.rochester.edu/~shuleli/hhc_mach.png, 50%)]][[BR]][[BR]]
 
 Other possible tests:[[BR]]