CFD Analysis

''All of the Animations and Images included in this POST was simulated by ENESTU'' ©ENESTU_Research

Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to analyze and solve problems that involve fluid flows. Computers are used to perform the calculations required to simulate the free-stream flow of the fluid, and the interaction of the fluid (liquids and gases) with surfaces defined by boundary conditions. With high-speed supercomputers, better solutions can be achieved, and are often required to solve the largest and most complex problems. Ongoing research yields software that improves the accuracy and speed of complex simulation scenarios such as transonic or turbulent flows. Initial validation of such software is typically performed using an experimental apparatus such as wind tunnels. Also, previously performed analytical or empirical analysis of a particular problem can be used for comparison. Final validation is often performed using full-scale testing, such as flight tests.

CFD analysis

CFD study on air distribution in an office room

We have simulated an office room with two occupants and two desks plus chairs and a desktop computer having two opening, one for supply air and another for exhaust air to remove the air from the room.

                                     

In the study, at first, the airflow rate and temperature for supply air were defined then the distribution of air and temperature difference in each part of the room was taken by the simulation. 

The temperature 3D in room

The temperature in a particular vertical surface of the room

The velocity and its vectors and vortices in that specific vertical surface

The temperature difference at a particular height from the floor
 on a horizontal surface by plan view

The velocity difference at that particular height from the floor
 on a horizontal surface by plan view

Besides the velocity of the air moving around the inside of the room and pressure layers were got to hand and the comfort condition about occupants in the room was achieved.

By the use of such a system in that zone, the comfort for all other occupants entering the room is not accomplished. The airflow rate and the number of supply openings were not enough to satisfy the occupants.