KAJIAN NUMERIK PENGARUH PUSH DAN PULL VELOCITY TERHADAP PENYEBARAN DROPLET YANG KELUAR BERSAMA BATUK PADA DOWNWARD PUSH-PULL VENTILATION DENGAN MODEL PENGUAPAN DROPLET

Rangga Zuleo Herlambang; Burniadi Moballa; Niki Veranda Agil Permadi

doi:10.33863/cmea.v7i1.3119

Rangga Zuleo Herlambang Student
Burniadi Moballa Dosen Politeknik Perkapalan Negeri Surabaya
Niki Veranda Agil Permadi Dosen Politeknik Perkapalan Negeri Surabaya

DOI: https://doi.org/10.33863/cmea.v7i1.3119

Keywords: Computational Fluid Dynamics, COVID-19, droplet, push-pull ventilation

Abstract

The transmission of Covid-19 is still increasing in many parts of the world, such as Indonesia. The main cause of the increase in this virus is the large number of people in a country who have not received booster vaccinations in various groups. Social Distancing must be implemented so that the virus does not increase. The industry has one reason to implement social distancing. So in this study, there is one solution system that can protect workers when working indoors to reduce the risk of virus transmission, namely air curtains. For this reason, a push-pull ventilation analysis was carried out with a droplet evaporation model using CFD (Computational Fluid Dynamic) and SALOME software and varying the meshing with a value of 0.04 and variations in the Push-Pull ratio speed and distance. From the simulation results obtained at the ratio of the peak cough speed of 0.05Vc with a ratio of 1 Blow nozzle is 0.7813 m/s and Suction nozzle 0.7813 m/s and a ratio of 2 Blow nozzles is 0.7813 m/s and Suction nozzle 0.1526 m/s. that the larger the ratio, the smaller the percentage of droplets that penetrate the air curtain, however if there is an anomaly in the air curtain, the large ratio is unable to hold the droplets as well as with a larger ratio of 0.01Vc.