merged

Revealing the Hidden Mechanism in Porous Media: Buoyancy Force
Nur Nabila Binti Ibrahim
Supervisor: Dr. Sunny Goh Eng Giap
Bachelor of Technology (Environment)
School of Ocean Engineering
Universiti Malaysia Terengganu
Buoyancy in atmospheric science has its roots its underlying foundations in the alleged
Law of Archimedes. It is generally accepted that vapor is governed by the physical
uplifting buoyancy force. However, the phenomenon has not been experimentally
proven its existence by any measuring device. Hence, in this study, nine physical
models were constructed to identify and quantify the presence of water vapor
buoyancy force in an open air. Three types of experimental devices were fabricated
to distinguish between diffusion and buoyancy, and this was achieved by the loss of
water from saturated in the form of water vapor. Diffusion and buoyancy mechanisms
were the only two mechanisms in action for causing water vapor to release from the
device to the surrounding environment. The loss of water was corresponding to the
mass loss of water vapor. The results showed that the mechanisms for water vapor
diffusion and buoyancy. Therefore findings from this study have proven the presence
of water vapor buoyancy force.
74 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2019