Reynolds numbers are different for different types of flow also depending on the flow conditions.
1. Flow in Pipes:
If the flow in pipes,
For Laminar Flow, the Reynolds number is Less than 2000
For Transition Flow, the Reynolds number is between 2000-4000
For Turbulent Flow, the Reynolds number is Greater than 4000
2. Flow Between Parallel Plate:
If the flow between parallel plates,
For Laminar Flow, the Reynolds number is Less than 1000
For Transition Flow, the Reynolds number is between 1000-2000
For Turbulent Flow, the Reynolds number is Greater than 2000
3. Flow in Open Channel:
If the flow is in an open channel,
For Laminar Flow, the Reynolds number is Less than 500
For Transition Flow, the Reynolds number is between 500-2000
For Turbulent Flow, the Reynolds number is Greater than 2000
4. Flow-Through Soil:
If the flow-through soil,
For Laminar Flow, the Reynolds number is Less than 1
For Transition Flow, the Reynolds number is between 1-2
For Turbulent Flow, the Reynolds number is Greater than 2
Reynolds Number for Different type of Flows in Different Conditions of Flow
| Flow Condition | Types of Flow | ||
| Laminar | Transition | Turbulent | |
| Flow in Pipes | <2000 | 2000-4000 | >4000 |
| Flow between parallel plates | <1000 | 1000-2000 | >2000 |
| Flow in Open Channel | <500 | 500-2000 | >2000 |
| Flow-Through Soil | <1 | 1-2 | >2 |