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	tbegun implementing boundary conditions - ns2dfd - 2D finite difference Navier …
	git clone git://src.adamsgaard.dk/ns2dfd
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	---
	commit c98b527b4afc40731b835e59e9fe57a431ee0dd6
	parent d0adbc625218b6a15d9a4e01da69a7196fe5284f
	Author: Anders Damsgaard <[email protected]>
	Date: Mon, 3 Mar 2014 09:34:24 +0100

	begun implementing boundary conditions

	Diffstat:
	A src/boundary.c \| 29 +++++++++++++++++++++++++++++

	1 file changed, 29 insertions(+), 0 deletions(-)
	---
	diff --git a/src/boundary.c b/src/boundary.c
	t@@ -0,0 +1,29 @@
	+
	+#define BC_NO_SLIP 1
	+#define BC_FREE_SLIP 2
	+#define BC_OUTFLOW 3
	+#define BC_PERIODIC 4
	+
	+/* Set boundary values of u, v and p according to the boundary conditions.
	+ * The BC flags are as follows:
	+ * 1: No-slip condition
	+ * 2: Free-slip condition
	+ * 3: Outflow condition
	+ * 4: Periodic condition
	+ */
	+void set_boundary_conditions(int w_left, int w_right, int w_top, int w_bottom,
	+ double P, double U, double **V, int nx, int ny)
	+{
	+ int i, j;
	+
	+ if (w_left == BC_NO_SLIP) {
	+ i = 0;
	+ for (j=1; j<ny+1; j++) {
	+ U[i][j] = 0.0;
	+
	+
	+ }
	+ }
	+
	+
	+}