Heat diffusivity given Lewis number Calculator

✖The Lewis Number is a dimensionless number defined as the ratio of thermal diffusivity to mass diffusivity.ⓘ Lewis Number [L_e]			+10% -10%
✖Mass diffusivity is a proportionality constant between the molar flux due to molecular diffusion and the gradient in the concentration of the species.ⓘ Mass Diffusivity [Md]			+10% -10%

✖Heat diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure.ⓘ Heat diffusivity given Lewis number [Hd]

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Formula

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Heat diffusivity given Lewis number

Formula

`"Hd" = "L"_{"e"}*"Md"`

Example

`"0.36m²/s"="4.5"*"0.08m²/s"`

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Heat diffusivity given Lewis number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Heat Diffusivity = Lewis Number*Mass Diffusivity
Hd = L_e*Md
This formula uses 3 Variables

Variables Used

Heat Diffusivity - (Measured in Square Meter Per Second) - Heat diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure.
Lewis Number - The Lewis Number is a dimensionless number defined as the ratio of thermal diffusivity to mass diffusivity.
Mass Diffusivity - (Measured in Square Meter Per Second) - Mass diffusivity is a proportionality constant between the molar flux due to molecular diffusion and the gradient in the concentration of the species.

STEP 1: Convert Input(s) to Base Unit

Lewis Number: 4.5 --> No Conversion Required
Mass Diffusivity: 0.08 Square Meter Per Second --> 0.08 Square Meter Per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Hd = L_e*Md --> 4.5*0.08

Evaluating ... ...

Hd = 0.36

STEP 3: Convert Result to Output's Unit

0.36 Square Meter Per Second --> No Conversion Required

FINAL ANSWER

0.36 Square Meter Per Second <-- Heat Diffusivity

(Calculation completed in 00.004 seconds)

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Created by Nishan Poojary

Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

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Heat diffusivity given Lewis number Formula

Heat Diffusivity = Lewis Number*Mass Diffusivity
Hd = L_e*Md

What is convection?

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. The initial heat transfer between the object and the fluid takes place through conduction, but the bulk heat transfer happens due to the motion of the fluid.

How to Calculate Heat diffusivity given Lewis number?

Heat diffusivity given Lewis number calculator uses Heat Diffusivity = Lewis Number*Mass Diffusivity to calculate the Heat Diffusivity, The Heat diffusivity given Lewis number formula is defined as the thermal conductivity divided by density and specific heat capacity at constant pressure. Heat Diffusivity is denoted by Hd symbol.

How to calculate Heat diffusivity given Lewis number using this online calculator? To use this online calculator for Heat diffusivity given Lewis number, enter Lewis Number (L_e) & Mass Diffusivity (Md) and hit the calculate button. Here is how the Heat diffusivity given Lewis number calculation can be explained with given input values -> 0.36 = 4.5*0.08.

FAQ

What is Heat diffusivity given Lewis number?

The Heat diffusivity given Lewis number formula is defined as the thermal conductivity divided by density and specific heat capacity at constant pressure and is represented as Hd = L_e*Md or Heat Diffusivity = Lewis Number*Mass Diffusivity. The Lewis Number is a dimensionless number defined as the ratio of thermal diffusivity to mass diffusivity & Mass diffusivity is a proportionality constant between the molar flux due to molecular diffusion and the gradient in the concentration of the species.

How to calculate Heat diffusivity given Lewis number?

The Heat diffusivity given Lewis number formula is defined as the thermal conductivity divided by density and specific heat capacity at constant pressure is calculated using Heat Diffusivity = Lewis Number*Mass Diffusivity. To calculate Heat diffusivity given Lewis number, you need Lewis Number (L_e) & Mass Diffusivity (Md). With our tool, you need to enter the respective value for Lewis Number & Mass Diffusivity and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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