ENTRANCE_SHARP

Overview

Calculate the loss coefficient (K) for a sharp entrance to a pipe flush with a reservoir wall.

Excel Usage

=ENTRANCE_SHARP(ent_sharp_method)

• ent_sharp_method (str, optional, default: “Rennels”): Calculation method - Rennels, Swamee, Blevins, Idelchik, Crane, or Miller

Returns (float): Loss coefficient K for the sharp entrance [-]

Examples

Example 1: Default Rennels method

Inputs:

ent_sharp_method
Rennels

Excel formula:

=ENTRANCE_SHARP("Rennels")

Expected output:

Result
0.57

Example 2: Swamee method returns 0.5

Inputs:

ent_sharp_method
Swamee

Excel formula:

=ENTRANCE_SHARP("Swamee")

Expected output:

Result
0.5

Example 3: Blevins method returns 0.5

Inputs:

ent_sharp_method
Blevins

Excel formula:

=ENTRANCE_SHARP("Blevins")

Expected output:

Result
0.5

Example 4: Miller method returns approximately 0.51

Inputs:

ent_sharp_method
Miller

Excel formula:

=ENTRANCE_SHARP("Miller")

Expected output:

Result
0.5093

Python Code

import micropip
await micropip.install(["fluids"])
from fluids.fittings import entrance_sharp as fluids_entrance_sharp

def entrance_sharp(ent_sharp_method='Rennels'):
    """
    Calculate the loss coefficient (K) for a sharp entrance to a pipe flush with a reservoir wall.

    See: https://fluids.readthedocs.io/fluids.fittings.html#fluids.fittings.entrance_sharp

    This example function is provided as-is without any representation of accuracy.

    Args:
        ent_sharp_method (str, optional): Calculation method - Rennels, Swamee, Blevins, Idelchik, Crane, or Miller Valid options: Rennels, Swamee, Blevins, Idelchik, Crane, Miller. Default is 'Rennels'.

    Returns:
        float: Loss coefficient K for the sharp entrance [-]
    """
    try:
        result = fluids_entrance_sharp(method=ent_sharp_method)
        return float(result)
    except Exception as e:
        return f"Error: {str(e)}"

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