FDS Source: Fix bug related to finding a RING

Author: mcgratta

Source/part.f90

@@ -1016,6 +1016,8 @@ SUBROUTINE INSERT_VOLUMETRIC_PARTICLES
    IF ((IN_X1-XF)>-50._EB*TWO_EPSILON_EB .OR. (IN_X2-XS)<50._EB*TWO_EPSILON_EB .OR. &
        (IN_Y1-YF)>-50._EB*TWO_EPSILON_EB .OR. (IN_Y2-YS)<50._EB*TWO_EPSILON_EB .OR. &
        (IN_Z1-ZF)>-50._EB*TWO_EPSILON_EB .OR. (IN_Z2-ZS)<50._EB*TWO_EPSILON_EB) RETURN
+ELSEIF (IN%SHAPE=='RING') THEN
+   IF (RING_MESH_INTERSECTION_ARC(NM,IN%X0,IN%Y0,IN%RADIUS)<TWO_EPSILON_EB) RETURN
 ELSE
    IF (IN_X1>XF .OR. IN_X2<XS .OR. IN_Y1>YF .OR. IN_Y2<YS .OR. IN_Z1>ZF .OR. IN_Z2<ZS) RETURN
 ENDIF