Update app.py

app.py

@@ -0,0 +1,17 @@
+import streamlit as st
+import math
+
+# App title
+st.title("Pipe Size Suggestion Tool")
+
+# Input fields
+flow_rate = st.number_input("Enter the flow rate (m³/s):", min_value=0.0, value=0.0, step=0.01)
+velocity = st.number_input("Enter the permissible velocity (m/s):", min_value=0.1, value=1.0, step=0.1)
+
+# Calculate pipe diameter
+if flow_rate > 0 and velocity > 0:
+    diameter = math.sqrt((4 * flow_rate) / (math.pi * velocity))
+    diameter_mm = diameter * 1000  # Convert to mm for readability
+    st.success(f"Recommended Pipe Diameter: {diameter_mm:.2f} mm")
+else:
+    st.warning("Please enter valid flow rate and velocity values greater than zero.")