shorter time steps to turn on accretion (due to no forcing), and comment for unit_length.

config/templates/sinktest.conf

@@ -65,6 +65,7 @@ AC_accretion_range = 0.2
 AC_unit_velocity = 1e5
 // using density estimate of 100 H2 molecules per cm^3
 AC_unit_density = 3e-22
+// using 10,000 AU 
 AC_unit_length = 1.5e17
 
 /*

src/standalone/simulation.cc

@@ -270,7 +270,7 @@ run_simulation(void)
         vertex_buffer_set(VTXBUF_ACCRETION, 0.0, mesh);
         
         int on_off_switch;
-        if (i < 1000) {
+        if (i < 50) {
             on_off_switch = 0; //accretion is off till 1000 steps.
         } else {
             on_off_switch = 1;