Constant Used In FPS Unit Given Flood Discharge By Nawab Jang Bahadur Formula Calculator

Nawab Jang Bahadur Formula:

\[ C_{NF} = \frac{Q_{NF}}{A_1^{0.92 - \frac{1}{14} \log_{10}(A_1)}} \]

Nawab Jang Bahadur Constant (C_NF):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the Nawab Jang Bahadur Formula?

The Nawab Jang Bahadur Formula is an empirical equation used in hydrology to estimate peak flood discharge in FPS units. It calculates a specific constant based on flood discharge and basin area, particularly useful for regional flood analysis in certain Indian contexts.

2. How Does the Calculator Work?

The calculator uses the Nawab Jang Bahadur formula:

\[ C_{NF} = \frac{Q_{NF}}{A_1^{0.92 - \frac{1}{14} \log_{10}(A_1)}} \]

Where:

\( C_{NF} \) — Nawab Jang Bahadur Constant for FPS
\( Q_{NF} \) — Flood discharge in cubic feet per second (cfs)
\( A_1 \) — Area of basin in square miles
\( \log_{10} \) — Base-10 logarithm function

Explanation: The formula calculates an empirical constant that relates flood discharge to basin area through a logarithmic relationship, accounting for regional hydrological characteristics.

3. Importance of the Constant Calculation

Details: Accurate calculation of this constant is crucial for regional flood estimation, hydrological modeling, and infrastructure planning in flood-prone areas where this empirical formula is applicable.

4. Using the Calculator

Tips: Enter flood discharge in cfs and basin area in square miles. Both values must be positive numbers. The calculator will compute the Nawab Jang Bahadur constant specific to FPS units.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range of values for this constant?
A: The constant varies by region but typically ranges between 1000-2000 for most Indian watersheds where this formula is applied.

Q2: How accurate is this empirical formula?
A: The formula provides reasonable estimates for regional flood analysis but should be used with caution and validated against measured data when possible.

Q3: What are the limitations of this approach?
A: The formula is region-specific and may not be accurate for areas with significantly different hydrological characteristics from those where it was developed.

Q4: Can this formula be used for metric units?
A: This specific formulation is designed for FPS units. Different constants and formulations exist for metric unit calculations.

Q5: How was this empirical formula developed?
A: The formula was developed through statistical analysis of flood data from specific regions in India, establishing relationships between basin characteristics and flood discharges.