The image above represents relative apparent viscosity.

To compute for relative apparent viscosity, two essential parameters are needed and these parameters are **Viscosity of Non-Newtonian Fluid (η _{a})** and

**Viscosity of Continuous Phase (η**

_{c}).The formula for calculating relative apparent viscosity:

η_{ra} = ^{ηa} / _{ηc}

Where:

η_{ra} = Relative Apparent Viscosity

η_{a} = Viscosity of Non-Newtonian Fluid

η_{c} = Viscosity of Continuous Phase

Let’s solve an example;

Find the relative apparent viscosity when the viscosity of non-newtonian fluids is 44 and the viscosity of continuous phase is 11.

This implies that;

η_{a} = Viscosity of Non-Newtonian Fluid = 44

η_{c} = Viscosity of Continuous Phase = 11

η_{ra} = ^{ηa} / _{ηc}

η_{ra} = ^{44} / _{11}

η_{ra} = 4

Therefore, the **relative apparent viscosity **is **4.**

**Calculating for Viscosity of Non-Newtonian Fluids when the Relative Apparent Viscosity and the Viscosity of Continuous Phase is Given.**

η_{a} = η_{ra} x η_{c}

Where;

η_{a} = Viscosity of Non-Newtonian Fluid

η_{ra} = Relative Apparent Viscosity

η_{c} = Viscosity of Continuous Phase

Let’s solve an example;

Find the viscosity of non-newtonian fluid when the relative apparent viscosity is 16 and the viscosity of continuous phase is 8.

This implies that;

η_{ra} = Relative Apparent Viscosity = 16

η_{c} = Viscosity of Continuous Phase = 8

η_{a} = η_{ra} x η_{c}

η_{a} = 16 x 8

η_{a} = 128

Therefore, the **viscosity of non-newtonian fluid **is **128.**

**Calculating for the Viscosity of Continuous Phase when the Relative Apparent Viscosity and the Viscosity of Non-Newtonian Phase is Given.**

η_{c} = ^{ηa} / _{ηra}

Where;

η_{c} = Viscosity of Continuous Phase

η_{ra} = Relative Apparent Viscosity

η_{a} = Viscosity of Non-Newtonian Fluid

Let’s solve an example;

Find the viscosity of continuous phase when the relative apparent viscosity is 14 and the viscosity of non-newtonian fluid is 48.

This implies that;

η_{ra} = Relative Apparent Viscosity = 14

η_{a} = Viscosity of Non-Newtonian Fluid = 48

η_{c} = ^{ηa} / _{ηra}

η_{c} = ^{48} / _{14}

η_{c} = 3.428

Therefore, the **viscosity of continuous phase **is **3.428.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the relative apparent viscosity.

To get the answer and workings of the relative apparent viscosity using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 2,000 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials and Metallurgical **under **Engineering****.**

Now, Click on **Rheology **under **Materials and Metallurgical**

Now, Click on **Relative Apparent Viscosity **under **Rheology**

The screenshot below displays the page or activity to enter your values, to get the answer for the relative apparent viscosity according to the respective parameters which is the **Viscosity of Non-Newtonian Fluid (η _{a})** and

**Viscosity of Continuous Phase (η**

_{c}).Now, enter the values appropriately and accordingly for the parameters as required by the **Viscosity of Non-Newtonian Fluid (η _{a})** is

**44**and

**Viscosity of Continuous Phase (η**is

_{c})**11**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the relative apparent viscosity and presents the formula, workings and steps too.