5.2. Real Life Example Problems

Before starting this class as usual in the next class what we discuss that we are following these three books Cengel, Cimbala, F.M. White and Bidya Sagar Pani. And today we will focus more on solving the GATE exam questions.

As we start with a real life example problems, today let us start with a real life problems like estimating the wind loads of a building where the cyclone effect is more disasters.

This chunk introduces the importance of estimating wind loads on buildings, especially in areas prone to cyclones. It emphasizes the severity of wind forces and mentions that the class will discuss methods to address these issues using Bernoulli's equations and concepts of fluid mechanics.

Imagine building a sandcastle on a beach. If the wind picks up, it can quickly erode your castle. Similarly, buildings need to be designed to withstand high winds, especially during cyclonic conditions, to ensure their stability and safety.

The for example, if you look at this, the airport locations in Bhubaneswar and the cyclonic speed of the 250 kilometer per hours you can compute it what will be the pressure difference between the off stream in off area as well as the inside the airport.

This chunk discusses how to calculate the pressure difference caused by wind speed, specifically when winds reach 250 kilometers per hour. It explains that understanding this pressure difference is crucial for assessing the potential uplift of structures like airport roofs.

Think of holding a piece of paper out of a car window while driving fast. The faster you go, the more the wind pushes against the paper. For buildings, similar principles apply, where the wind’s pressure can determine how much force acts on the structure.

So the basically what I am to try to say that if you look at these problems which look it is very complex, but with help of the control volume concept and the drawing the streamlines we have then if you apply the Bernoulli’s equations you can solve these problems to estimate what could be the wind loads when you have a cyclonic speed 250 kilometer per hours passing through this type of civil engineering structures.

This chunk illustrates that while the problem might appear complex, Bernoulli's equation can simplify it. By utilizing control volume concepts and streamlines, students can estimate wind loads on structures encountering strong winds.

Consider standing in front of a fan. It seems overwhelming at first, but by understanding how the air flows around you (like drawing streamlines), you can adjust your position to minimize the wind's effect, just as engineers use Bernoulli's principles to protect buildings.

Lift Force= 25317.26 N = 25.3 KN. And if you look at this way, it is quite easy to compute the wind load estimations, but we should know exactly how to apply the Bernoulli’s equations and what are the assumptions are there.

This chunk presents a numerical example of calculating lift force, indicating a lift force of 25.3 kN. It underscores that understanding the application of Bernoulli’s equation and its assumptions is necessary for accurately computing wind loads.

Imagine flying a kite. The pressure difference created as wind flows over and under it generates lift, pulling it upwards. Engineers must calculate this lift to ensure structures can handle similar forces during extreme weather.

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