TY - GEN
T1 - Exhaust smoke dispersion for a generic frigate
T2 - 15th International Congress of the International Maritime Association of the Mediterranean, IMAM 2013
AU - Dobrucal, E.
AU - Ergin, S.
PY - 2014
Y1 - 2014
N2 - The exhaust smoke dispersion for a generic frigate is investigated numerically through the numerical solution of the governing fluid flow, energy, species and turbulence equations. The main objective of the work is to obtain the effects of yaw angle, velocity ratio and buoyancy on the dispersion of the exhaust smoke. Turbulence is modeled using a two-equation (κk-ε) model. The flow visualization tests using 1/100 scale model of the frigate in the wind tunnel were also carried out to determine the exhaust plume path and to validate the computational results. The results show that down wash phenomena occurs for the yaw angles between ψ = 10° and 20°. The results with different exhaust gas temperatures show that the buoyancy effect increases with increasing exhaust gas temperature. However, its effect on the plume rise is less significant in comparison with its momentum. The agreement between the calculated results and experiments is found to be good.
AB - The exhaust smoke dispersion for a generic frigate is investigated numerically through the numerical solution of the governing fluid flow, energy, species and turbulence equations. The main objective of the work is to obtain the effects of yaw angle, velocity ratio and buoyancy on the dispersion of the exhaust smoke. Turbulence is modeled using a two-equation (κk-ε) model. The flow visualization tests using 1/100 scale model of the frigate in the wind tunnel were also carried out to determine the exhaust plume path and to validate the computational results. The results show that down wash phenomena occurs for the yaw angles between ψ = 10° and 20°. The results with different exhaust gas temperatures show that the buoyancy effect increases with increasing exhaust gas temperature. However, its effect on the plume rise is less significant in comparison with its momentum. The agreement between the calculated results and experiments is found to be good.
UR - http://www.scopus.com/inward/record.url?scp=84894491480&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84894491480
SN - 9781138001626
T3 - Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean
SP - 811
EP - 817
BT - Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean
Y2 - 14 October 2013 through 17 October 2013
ER -