X-Git-Url: https://www.hackdaworld.org/gitweb/?a=blobdiff_plain;f=posic.c;h=fba11d259ed5d83930c0a3def16a6a311dffc66f;hb=dc70c570abec4596355df26ff19756658e33e762;hp=c185d16c7461df6f38d8cdd070be46ecaffa6a47;hpb=c38fe34069adb9697683235f8b1e2311a3122e8f;p=physik%2Fposic.git

diff --git a/posic.c b/posic.c
index c185d16..fba11d2 100644
--- a/posic.c
+++ b/posic.c
@@ -48,7 +48,7 @@ int main(int argc,char **argv) {
 	lj.sigma12=lj.sigma6*lj.sigma6;
 	lj.epsilon4=4.0*LJ_EPSILON_SI;
 	ho.equilibrium_distance=0.25*sqrt(3.0)*LC_SI;
-	ho.spring_constant=1.0;
+	ho.spring_constant=1;
 	/* assignement */
 	md.potential_force_function=lennard_jones;
 	//md.potential_force_function=harmonic_oscillator;
@@ -95,9 +95,9 @@ int main(int argc,char **argv) {
 	md.count=create_lattice(DIAMOND,SI,M_SI,LC_SI,a,b,c,&(md.atom));
 	printf("created silicon lattice (#atoms = %d)\n",md.count);
 #else
-	md.count=2;
-	md.atom=malloc(2*sizeof(t_atom));
-	md.atom[0].r.x=0.13*sqrt(3.0)*LC_SI/2.0;
+	md.count=3;
+	md.atom=malloc(md.count*sizeof(t_atom));
+	md.atom[0].r.x=0.21*sqrt(3.0)*LC_SI/2.0;
 	md.atom[0].r.y=0;
 	md.atom[0].r.z=0;
 	md.atom[0].element=SI;
@@ -107,6 +107,18 @@ int main(int argc,char **argv) {
 	md.atom[1].r.z=0;
 	md.atom[1].element=SI;
 	md.atom[1].mass=M_SI;
+
+	md.atom[2].r.x=0.5*(a-1)*LC_SI;
+	md.atom[2].r.y=0.5*(b-1)*LC_SI;
+	md.atom[2].r.z=0;
+	md.atom[2].element=C;
+	md.atom[2].mass=M_C;
+
+	//md.atom[3].r.x=0.5*(a-1)*LC_SI;
+	//md.atom[3].r.y=0;
+	//md.atom[3].r.z=0;
+	//md.atom[3].element=SI;
+	//md.atom[3].mass=M_SI;
 #endif
 
 	/* initial thermal fluctuations of particles */
@@ -116,6 +128,8 @@ int main(int argc,char **argv) {
 	thermal_init(&md);
 #else
 	for(a=0;a<md.count;a++) v3_zero(&(md.atom[0].v));
+	md.atom[2].v.x=-320;
+	md.atom[2].v.y=-320;
 #endif
 
 	/* check kinetic energy */
@@ -132,9 +146,6 @@ int main(int argc,char **argv) {
 	printf("estimated accurate time step: %.30f [s]\n",
 	       estimate_time_step(&md,3.0,md.t));
 
-	/* initialize linked list / cell method */
-	link_cell_init(&md);
-
 	/*
 	 * let's do the actual md algorithm now
 	 *