Update app.py

app.py

@@ -37,12 +37,17 @@ def calculate_pressure_drop(diameter, flow_rate, density, viscosity, length=1.0)
 
 # Streamlit App
 st.title("Pressure Drop Calculator for Straight Pipe")
+st.write("""
+This tool calculates the pressure drop in a straight pipe for both laminar and turbulent flow conditions. 
+Provide the necessary inputs below, and the app will determine the pressure drop and Reynolds number.
+""")
 
 # Inputs
-diameter = st.number_input("Pipe Diameter (m)", min_value=0.01, max_value=10.0, value=0.1, step=0.01)
-flow_rate = st.number_input("Flow Rate (m^3/s)", min_value=0.0001, max_value=10.0, value=0.01, step=0.001)
-fluid = st.selectbox("Fluid Type", ["Water", "Oil", "Air"])
-pipe_length = st.number_input("Pipe Length (m)", min_value=0.1, max_value=1000.0, value=1.0, step=0.1)
+st.sidebar.header("Input Parameters")
+diameter = st.sidebar.slider("Pipe Diameter (m)", min_value=0.01, max_value=1.0, value=0.1, step=0.01)
+flow_rate = st.sidebar.slider("Flow Rate (L/s)", min_value=0.001, max_value=100.0, value=1.0, step=0.1) / 1000  # Convert to m^3/s
+fluid = st.sidebar.selectbox("Fluid Type", ["Water", "Oil", "Air"])
+pipe_length = st.sidebar.slider("Pipe Length (m)", min_value=0.1, max_value=100.0, value=10.0, step=0.1)
 
 # Get fluid properties
 fluid_props = get_fluid_properties(fluid)
@@ -54,17 +59,23 @@ if fluid_props["density"] and fluid_props["viscosity"]:
     pressure_drop, reynolds = calculate_pressure_drop(diameter, flow_rate, density, viscosity, pipe_length)
 
     # Output results
-    st.write("## Results")
-    st.write(f"Reynolds Number: {reynolds:.2f}")
-    st.write(f"Pressure Drop: {pressure_drop:.2f} Pa")
+    st.subheader("Results")
+    st.write(f"**Reynolds Number:** {reynolds:.2f}")
+    st.write(f"**Pressure Drop:** {pressure_drop:.2f} Pa")
 
     # Flow type
     if reynolds < 2000:
-        st.write("Flow Type: Laminar")
+        st.success("Flow Type: Laminar")
     else:
-        st.write("Flow Type: Turbulent")
+        st.success("Flow Type: Turbulent")
 else:
     st.error("Invalid fluid selected or missing properties.")
 
-# Deployment note
-st.info("You can deploy this app on Hugging Face by packaging it as a repository with a `requirements.txt` file.")
+st.write("""
+---
+### How to Use
+1. Adjust the input parameters using the sidebar.
+2. View the calculated pressure drop and Reynolds number.
+
+**Note:** Ensure all inputs are within valid physical ranges.
+""")