Create app.py

app.py

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+import streamlit as st
+import math
+import matplotlib.pyplot as plt
+import numpy as np
+
+# Function to calculate pipe diameter
+def calculate_diameter(flow_rate, velocity):
+    # Formula to calculate pipe diameter (d = sqrt(4 * Q / (pi * v)))
+    # Where Q is flow rate (in cubic meters per second)
+    # v is the velocity (in meters per second)
+    diameter = math.sqrt(4 * flow_rate / (math.pi * velocity))
+    return diameter
+
+# Function to plot the graph
+def plot_diameter_graph():
+    # Define a range of flow rates (Q) and velocities (v)
+    flow_rate_values = np.linspace(0.01, 1.0, 100)  # Range of flow rates (0.01 to 1.0 m³/s)
+    velocity_values = np.linspace(0.1, 5.0, 50)  # Range of velocities (0.1 to 5.0 m/s)
+
+    # Create a meshgrid for the flow rates and velocities
+    flow_rate_grid, velocity_grid = np.meshgrid(flow_rate_values, velocity_values)
+
+    # Calculate the pipe diameter for each combination of flow rate and velocity
+    diameter_values = np.sqrt(4 * flow_rate_grid / (np.pi * velocity_grid))
+
+    # Plotting the graph
+    fig, ax = plt.subplots(figsize=(10, 6))
+    cp = ax.contourf(flow_rate_grid, velocity_grid, diameter_values, cmap='viridis')
+    fig.colorbar(cp, ax=ax, label='Pipe Diameter (m)')
+    ax.set_xlabel('Flow Rate (m³/s)')
+    ax.set_ylabel('Velocity (m/s)')
+    ax.set_title('Pipe Diameter vs. Flow Rate and Velocity')
+
+    # Display the plot in Streamlit
+    st.pyplot(fig)
+
+# Streamlit App
+def main():
+    # Set the page configuration with a title, icon, and layout style
+    st.set_page_config(
+        page_title="Pipe Sizing Helper",
+        page_icon="💧",  # Water-related icon
+        layout="centered",  # Center the content
+    )
+    
+    # Title and description
+    st.title("Pipe Sizing Helper 💧")
+    st.markdown("Enter the flow rate and permissible velocity to get the recommended pipe diameter.")
+    
+    # Input fields for flow rate and velocity
+    flow_rate = st.number_input("Enter Flow Rate (m³/s):", min_value=0.0, step=0.01)
+    velocity = st.number_input("Enter Permissible Velocity (m/s):", min_value=0.0, step=0.1)
+    
+    # Create a button to calculate the recommended pipe diameter
+    if st.button("Generate Pipe Diameter"):
+        # Check if both flow rate and velocity are greater than zero
+        if flow_rate > 0 and velocity > 0:
+            diameter = calculate_diameter(flow_rate, velocity)
+            st.write(f"The recommended pipe diameter is: **{diameter:.2f} meters**")
+        else:
+            st.error("Please enter valid values for flow rate and velocity.")
+    
+    # Show the graphical visualization of pipe diameter vs flow rate and velocity
+    st.subheader("Graphical Visualization")
+    plot_diameter_graph()
+
+    # Add some helpful info or tips
+    st.markdown("""
+    ### Tips:
+    - Flow rate (Q) is the volume of fluid passing through the pipe per unit of time (in cubic meters per second).
+    - Permissible velocity (v) is the maximum allowable speed of the fluid inside the pipe (in meters per second).
+    """)
+
+if __name__ == "__main__":
+    main()