Create app.py

app.py

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+import streamlit as st
+import math
+
+# Application title
+st.title("Pipe Size Calculator")
+
+# Input fields for flow rate and velocity
+flow_rate = st.number_input("Enter flow rate (m³/s):", min_value=0.0, step=0.01, format="%.2f")
+velocity = st.number_input("Enter velocity (m/s):", min_value=0.0, step=0.01, format="%.2f")
+
+# Calculate and display the recommended pipe diameter
+if flow_rate > 0 and velocity > 0:
+    # Calculate pipe diameter in meters
+    diameter = math.sqrt((4 * flow_rate) / (math.pi * velocity))
+    
+    # Convert diameter to centimeters for better readability
+    diameter_cm = diameter * 100
+    st.success(f"Recommended Pipe Diameter: {diameter:.4f} meters ({diameter_cm:.2f} cm)")
+else:
+    st.warning("Please enter valid positive values for both flow rate and velocity.")