The spread of the virus in public transport transferred to the simulation


The “supercomputer”, which was created by combining 24 computers in the High Performance Computing Center of Harran University, prepared a simulation with reference to a public transportation vehicle with its front door and top 2 windows open at the back.

In the simulation, the distribution of virus particles was detected in the case of 2 people coughing or sneezing in the public transportation vehicle.

HarranCFD group aims to develop a ventilation system in public vehicles with the highest risk of spreading infectious diseases by transferring its work to the auto industry sector.

HarranCFD Coordinator Dr. Lecturer Zeynel Abidin Fıratoğlu told Anadolu Agency (AA) that HarranCFD is working to contribute to the country’s fight against the epidemic.

Stating that they are trying to develop new methods and tools to reduce the risk of contamination of viruses, Fıratoğlu said, “We carried out the simulation to determine the current situation in the process of developing an effective ventilation system to reduce the risk of contamination of the new type of coronavirus in public transport vehicles.” said.

Stating that in a single sneeze, 10 thousand droplets of different sizes are released at a speed of 20 m / s, this rate is lower in coughing, and in activities such as speech, according to researches, Fıratoğlu made the following assessment:

“As the HarranCFD group, we carried out the distribution simulation of the coronavirus during the ventilation of the moving vehicle with the front door and window open, referring to a city bus. In the simulation, many local flow behaviors were observed in the environment during ventilation. Existing ventilation systems in public transport vehicles are often quite insufficient to reduce the risk of transmission of the virus or to clean the air mass in the environment, as they are generally aimed at thermal comfort in the form of heating or cooling. Since the moment of the particles is much lower than sneezing and coughing, it is much easier to spread with the moving air mass. “The only way is to develop innovative ventilation systems.”

The virus spreads throughout the environment, stays in the air for a long time

Emphasizing that they try to show the distribution of the virus in case of coughing or sneezing with their study, 2 people on the bus have determined that the virus has spread to the whole environment and stays in the air for a long time, Fıratoğlu said, “It is useful to emphasize that our citizens do not pay attention to social distance when they wear a mask. In some cases, the mask passes particles, which poses a risk in the meeting of the virus. In our study, we based on an environment with a length of 11 meters and approximately 3 meters width. . We aim to develop an effective ventilation system in public transportation. ” He spoke in the form.

Emphasizing that ventilation plays an important role in the spread of infectious diseases, Fıratoğlu pointed out that uncontrolled ventilation also increases the risk of transmission of the virus.