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Thoma's Cavitation factor given Net Positive Suction Head Formula

GoThoma's cavitation factor Formula

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Thoma's Cavitation Factor is used to indicate the onset of cavitation. Check FAQs

σ = \frac{H sv}{H m}

σ - Thoma's Cavitation Factor?H_sv - Net Positive Suction Head of Centrifugal Pump?H_m - Manometric Head of Centrifugal Pump?

Thoma's Cavitation factor given Net Positive Suction Head Example

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Here is how the Thoma's Cavitation factor given Net Positive Suction Head equation looks like with Values.

Here is how the Thoma's Cavitation factor given Net Positive Suction Head equation looks like with Units.

Here is how the Thoma's Cavitation factor given Net Positive Suction Head equation looks like.

0.2174 = \frac{5.5}{25.3}

0.2174 = \frac{5.5m}{25.3m}

0.2174 = \frac{5.5}{25.3}

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Thoma's Cavitation factor given Net Positive Suction Head Solution

Follow our step by step solution on how to calculate Thoma's Cavitation factor given Net Positive Suction Head?

FIRST Step Consider the formula

σ = \frac{H sv}{H m}

Next Step Substitute values of Variables

∴

σ = \frac{5.5m}{25.3m}

Next Step Prepare to Evaluate

∴

σ = \frac{5.5}{25.3}

Next Step Evaluate

∴

σ = 0.217391304347826

LAST Step Rounding Answer

∴

σ = 0.2174

Thoma's Cavitation factor given Net Positive Suction Head Formula Elements

Variables

Thoma's Cavitation Factor

Thoma's Cavitation Factor is used to indicate the onset of cavitation.

Symbol: σ

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Thoma's Cavitation Factor

Net Positive Suction Head of Centrifugal Pump

The Net Positive Suction Head of Centrifugal Pump is the net head required to make the liquid flow through the suction pipe from the sump to the impeller.

Symbol: H_sv

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Net Positive Suction Head of Centrifugal Pump

Manometric Head of Centrifugal Pump

The Manometric Head of Centrifugal Pump is the head against which the centrifugal pump has to work.

Symbol: H_m

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Manometric Head of Centrifugal Pump

Other Formulas to find Thoma's Cavitation Factor

Go Thoma's cavitation factor

σ = \frac{H a - h s - H v}{H m}

Other formulas in Geometric and Flow Parameters category

Go Speed ratio

K u = \frac{u 2}{\sqrt{2 \cdot [g] \cdot H m}}

Go Volume of liquid at inlet

Q = π \cdot D 1 \cdot B 1 \cdot V f1

Go Weight of liquid

W l = y \cdot Q

Go Static head

H st = h s + h d

How to Evaluate Thoma's Cavitation factor given Net Positive Suction Head?

Thoma's Cavitation factor given Net Positive Suction Head evaluator uses Thoma's Cavitation Factor = Net Positive Suction Head of Centrifugal Pump/Manometric Head of Centrifugal Pump to evaluate the Thoma's Cavitation Factor, Thoma's Cavitation factor given Net Positive Suction Head formula is defined as a dimensionless parameter that characterizes the ability of a centrifugal pump to resist cavitation, which is a critical phenomenon that can lead to pump failure, and is influenced by the suction head and other geometric and flow parameters. Thoma's Cavitation Factor is denoted by σ symbol.

How to evaluate Thoma's Cavitation factor given Net Positive Suction Head using this online evaluator? To use this online evaluator for Thoma's Cavitation factor given Net Positive Suction Head, enter Net Positive Suction Head of Centrifugal Pump (H_sv) & Manometric Head of Centrifugal Pump (H_m) and hit the calculate button.

FAQs on Thoma's Cavitation factor given Net Positive Suction Head

What is the formula to find Thoma's Cavitation factor given Net Positive Suction Head?

The formula of Thoma's Cavitation factor given Net Positive Suction Head is expressed as Thoma's Cavitation Factor = Net Positive Suction Head of Centrifugal Pump/Manometric Head of Centrifugal Pump. Here is an example- 0.217391 = 5.5/25.3.

How to calculate Thoma's Cavitation factor given Net Positive Suction Head?

With Net Positive Suction Head of Centrifugal Pump (H_sv) & Manometric Head of Centrifugal Pump (H_m) we can find Thoma's Cavitation factor given Net Positive Suction Head using the formula - Thoma's Cavitation Factor = Net Positive Suction Head of Centrifugal Pump/Manometric Head of Centrifugal Pump.

What are the other ways to Calculate Thoma's Cavitation Factor?

Here are the different ways to Calculate Thoma's Cavitation Factor-

Thoma's Cavitation Factor=(Atmospheric Pressure Head for Pump-Suction Head of Centrifugal Pump-Vapour Pressure Head)/Manometric Head of Centrifugal Pump

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Thoma's Cavitation factor given Net Positive Suction Head Formula

​GoThoma's cavitation factor Formula

Thoma's Cavitation factor given Net Positive Suction Head Example

Thoma's Cavitation factor given Net Positive Suction Head Solution

Thoma's Cavitation factor given Net Positive Suction Head Formula Elements

Other Formulas to find Thoma's Cavitation Factor

Other formulas in Geometric and Flow Parameters category

How to Evaluate Thoma's Cavitation factor given Net Positive Suction Head?

FAQs on Thoma's Cavitation factor given Net Positive Suction Head

Variable Name

GoThoma's cavitation factor Formula